refmt

* Rewrite MostRecentActivity to leverage AppStatePersistenceUtility.

* Fix format. Update type enum.

* Migrate Item enum to string enum

* Fix unit tests

* Fix build issue

.devcontainer/Dockerfile

@@ -0,0 +1,16 @@
+FROM mcr.microsoft.com/devcontainers/typescript-node:1-22-bookworm
+
+# Install pre-reqs for gyp, and 'canvas' npm module
+RUN apt-get update && \
+    apt-get install -y \
+        make \
+        gcc \
+        g++ \
+        python3-minimal \
+        libcairo2-dev \
+        libpango1.0-dev \
+        && \
+    rm -rf /var/lib/apt/lists/*
+
+# Install node-gyp to build native modules
+RUN npm install -g node-gyp

.devcontainer/devcontainer.json

@@ -0,0 +1,32 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/typescript-node
+{
+	"name": "Azure Cosmos DB Explorer",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"build": {
+		"dockerfile": "Dockerfile"
+	},
+	"onCreateCommand": ".devcontainer/oncreate",
+	"features": {
+		"ghcr.io/devcontainers/features/azure-cli:1": {
+			"version": "latest"
+		},
+		"ghcr.io/devcontainers/features/github-cli:1": {
+			"installDirectlyFromGitHubRelease": true,
+			"version": "latest"
+		},
+		"ghcr.io/devcontainers/features/sshd:1": {
+			"version": "latest"
+		}
+	}
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "yarn install",
+	// Configure tool-specific properties.
+	// "customizations": {},
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

.devcontainer/oncreate

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+# Install packages once, to prime the node_modules directory.
+npm ci

jest.config.js

@@ -174,7 +174,7 @@ module.exports = {
   },
 
   // An array of regexp pattern strings that are matched against all source file paths, matched files will skip transformation
-  transformIgnorePatterns: ["/node_modules/", "/externals/"],
+  transformIgnorePatterns: ["/node_modules/(?!@fluentui/react-icons)", "/externals/"],
 
   // An array of regexp pattern strings that are matched against all modules before the module loader will automatically return a mock for them
   // unmockedModulePathPatterns: undefined,

less/documentDB.less

@@ -1906,8 +1906,14 @@ input::-webkit-calendar-picker-indicator::after {
 }
 
 .nav-tabs-margin {
-  padding-top: 5px;
+  height: 32px;
   background-color: #f2f2f2;
+
+  .nav-tabs {
+    display: flex;
+    align-items: flex-end;
+    height: 100%;
+  }
 }
 
 .navTabHeight {
@@ -2352,8 +2358,8 @@ a:link {
 
 .tabsManagerContainer {
   height: 100%;
-  display: grid;
-  grid-template-rows: 36px 36px 1fr;
+  display: flex;
+  flex-direction: column;
   min-width: 0; // This prevents it to grow past the parent's width if its content is too wide
 }
 
@@ -2610,9 +2616,9 @@ a:link {
 }
 
 .tabPanesContainer {
-  grid-row: span 2; // Fill the remaining space
   display: flex;
-  height: 100%;
+  flex-grow: 1;
+  flex-direction: column;
   overflow: hidden;
 }
 

playwright.config.ts

@@ -12,7 +12,6 @@ export default defineConfig({
   reporter: process.env.CI ? "blob" : "html",
   timeout: 10 * 60 * 1000,
   use: {
-    actionTimeout: 5 * 60 * 1000,
     trace: "off",
     video: "off",
     screenshot: "on",
@@ -23,7 +22,8 @@ export default defineConfig({
   },
 
   expect: {
-    timeout: 5 * 60 * 1000,
+    // Many of our expectations take a little longer than the default 5 seconds.
+    timeout: 15 * 1000,
   },
 
   projects: [

src/Common/Constants.ts

@@ -134,6 +134,9 @@ export class BackendApi {
   public static readonly GenerateToken: string = "GenerateToken";
   public static readonly PortalSettings: string = "PortalSettings";
   public static readonly AccountRestrictions: string = "AccountRestrictions";
+  public static readonly RuntimeProxy: string = "RuntimeProxy";
+  public static readonly DisallowedLocations: string = "DisallowedLocations";
+  public static readonly SampleData: string = "SampleData";
 }
 
 export class PortalBackendEndpoints {
@@ -183,6 +186,12 @@ export class CassandraProxyAPIs {
   public static readonly connectionStringSchemaApi: string = "api/connectionstring/cassandra/schema";
 }
 
+export class AadEndpoints {
+  public static readonly Prod: string = "https://login.microsoftonline.com/";
+  public static readonly Fairfax: string = "https://login.microsoftonline.us/";
+  public static readonly Mooncake: string = "https://login.partner.microsoftonline.cn/";
+}
+
 export class Queries {
   public static CustomPageOption: string = "custom";
   public static UnlimitedPageOption: string = "unlimited";
@@ -284,6 +293,7 @@ export class HttpStatusCodes {
   public static readonly Accepted: number = 202;
   public static readonly NoContent: number = 204;
   public static readonly NotModified: number = 304;
+  public static readonly BadRequest: number = 400;
   public static readonly Unauthorized: number = 401;
   public static readonly Forbidden: number = 403;
   public static readonly NotFound: number = 404;
@@ -495,7 +505,7 @@ export class PriorityLevel {
   public static readonly Default = "low";
 }
 
-export const QueryCopilotSampleDatabaseId = "CopilotSampleDb";
+export const QueryCopilotSampleDatabaseId = "CopilotSampleDB";
 export const QueryCopilotSampleContainerId = "SampleContainer";
 
 export const QueryCopilotSampleContainerSchema = {

src/Common/CosmosClient.ts

@@ -3,15 +3,16 @@ import { getAuthorizationTokenUsingResourceTokens } from "Common/getAuthorizatio
 import { AuthorizationToken } from "Contracts/FabricMessageTypes";
 import { checkDatabaseResourceTokensValidity } from "Platform/Fabric/FabricUtil";
 import { LocalStorageUtility, StorageKey } from "Shared/StorageUtility";
+import { useNewPortalBackendEndpoint } from "Utils/EndpointUtils";
 import { AuthType } from "../AuthType";
-import { PriorityLevel } from "../Common/Constants";
+import { BackendApi, PriorityLevel } from "../Common/Constants";
+import * as Logger from "../Common/Logger";
 import { Platform, configContext } from "../ConfigContext";
 import { userContext } from "../UserContext";
 import { logConsoleError } from "../Utils/NotificationConsoleUtils";
 import * as PriorityBasedExecutionUtils from "../Utils/PriorityBasedExecutionUtils";
 import { EmulatorMasterKey, HttpHeaders } from "./Constants";
 import { getErrorMessage } from "./ErrorHandlingUtils";
-import * as Logger from "../Common/Logger";
 
 const _global = typeof self === "undefined" ? window : self;
 
@@ -123,6 +124,37 @@ export async function getTokenFromAuthService(
   verb: string,
   resourceType: string,
   resourceId?: string,
+): Promise<AuthorizationToken> {
+  if (!useNewPortalBackendEndpoint(BackendApi.RuntimeProxy)) {
+    return getTokenFromAuthService_ToBeDeprecated(verb, resourceType, resourceId);
+  }
+
+  try {
+    const host: string = configContext.PORTAL_BACKEND_ENDPOINT;
+    const response: Response = await _global.fetch(host + "/api/connectionstring/runtimeproxy/authorizationtokens", {
+      method: "POST",
+      headers: {
+        "content-type": "application/json",
+        "x-ms-encrypted-auth-token": userContext.accessToken,
+      },
+      body: JSON.stringify({
+        verb,
+        resourceType,
+        resourceId,
+      }),
+    });
+    const result: AuthorizationToken = await response.json();
+    return result;
+  } catch (error) {
+    logConsoleError(`Failed to get authorization headers for ${resourceType}: ${getErrorMessage(error)}`);
+    return Promise.reject(error);
+  }
+}
+
+export async function getTokenFromAuthService_ToBeDeprecated(
+  verb: string,
+  resourceType: string,
+  resourceId?: string,
 ): Promise<AuthorizationToken> {
   try {
     const host = configContext.BACKEND_ENDPOINT;

src/Common/EnvironmentUtility.test.ts

@@ -1,3 +1,5 @@
+import { PortalBackendEndpoints } from "Common/Constants";
+import { updateConfigContext } from "ConfigContext";
 import * as EnvironmentUtility from "./EnvironmentUtility";
 
 describe("Environment Utility Test", () => {
@@ -11,4 +13,18 @@ describe("Environment Utility Test", () => {
     const expectedResult = "test/";
     expect(EnvironmentUtility.normalizeArmEndpoint(uri)).toEqual(expectedResult);
   });
+
+  it("Detect environment is Mpac", () => {
+    updateConfigContext({
+      PORTAL_BACKEND_ENDPOINT: PortalBackendEndpoints.Mpac,
+    });
+    expect(EnvironmentUtility.getEnvironment()).toBe(EnvironmentUtility.Environment.Mpac);
+  });
+
+  it("Detect environment is Development", () => {
+    updateConfigContext({
+      PORTAL_BACKEND_ENDPOINT: PortalBackendEndpoints.Development,
+    });
+    expect(EnvironmentUtility.getEnvironment()).toBe(EnvironmentUtility.Environment.Development);
+  });
 });

src/Common/EnvironmentUtility.ts

@@ -1,6 +1,29 @@
+import { PortalBackendEndpoints } from "Common/Constants";
+import { configContext } from "ConfigContext";
+
 export function normalizeArmEndpoint(uri: string): string {
   if (uri && uri.slice(-1) !== "/") {
     return `${uri}/`;
   }
   return uri;
 }
+
+export enum Environment {
+  Development = "Development",
+  Mpac = "MPAC",
+  Prod = "Prod",
+  Fairfax = "Fairfax",
+  Mooncake = "Mooncake",
+}
+
+export const getEnvironment = (): Environment => {
+  const environmentMap: { [key: string]: Environment } = {
+    [PortalBackendEndpoints.Development]: Environment.Development,
+    [PortalBackendEndpoints.Mpac]: Environment.Mpac,
+    [PortalBackendEndpoints.Prod]: Environment.Prod,
+    [PortalBackendEndpoints.Fairfax]: Environment.Fairfax,
+    [PortalBackendEndpoints.Mooncake]: Environment.Mooncake,
+  };
+
+  return environmentMap[configContext.PORTAL_BACKEND_ENDPOINT];
+};

src/Common/ErrorHandlingUtils.ts

@@ -53,7 +53,8 @@ const replaceKnownError = (errorMessage: string): string => {
     return "Partition key paths must contain only valid characters and not contain a trailing slash or wildcard character.";
   } else if (
     errorMessage?.indexOf("The user aborted a request") >= 0 ||
-    errorMessage?.indexOf("The operation was aborted") >= 0
+    errorMessage?.indexOf("The operation was aborted") >= 0 ||
+    errorMessage === "signal is aborted without reason"
   ) {
     return "User aborted query.";
   }

src/Common/MessageHandler.ts

@@ -70,7 +70,6 @@ export function sendMessage(data: any): void {
 }
 
 export function sendReadyMessage(): void {
-  console.log("SENDING READY MESSAGE");
   _sendMessage({
     signature: "pcIframe",
     kind: "ready",

src/Common/MongoProxyClient.ts

@@ -550,6 +550,49 @@ export function deleteDocument_ToBeDeprecated(
     });
 }
 
+export function deleteDocuments(
+  databaseId: string,
+  collection: Collection,
+  documentIds: DocumentId[],
+): Promise<{
+  deletedCount: number;
+  isAcknowledged: boolean;
+}> {
+  const { databaseAccount } = userContext;
+  const resourceEndpoint = databaseAccount.properties.mongoEndpoint || databaseAccount.properties.documentEndpoint;
+
+  const rids = documentIds.map((documentId) => documentId.id());
+
+  const params = {
+    databaseID: databaseId,
+    collectionID: collection.id(),
+    resourceUrl: `${resourceEndpoint}`,
+    resourceIDs: rids,
+    subscriptionID: userContext.subscriptionId,
+    resourceGroup: userContext.resourceGroup,
+    databaseAccountName: databaseAccount.name,
+  };
+  const endpoint = getFeatureEndpointOrDefault("bulkdelete");
+
+  return window
+    .fetch(`${endpoint}/bulkdelete`, {
+      method: "DELETE",
+      body: JSON.stringify(params),
+      headers: {
+        ...defaultHeaders,
+        ...authHeaders(),
+        [HttpHeaders.contentType]: ContentType.applicationJson,
+      },
+    })
+    .then(async (response) => {
+      if (response.ok) {
+        const result = await response.json();
+        return result;
+      }
+      return await errorHandling(response, "deleting documents", params);
+    });
+}
+
 export function createMongoCollectionWithProxy(
   params: DataModels.CreateCollectionParams,
 ): Promise<DataModels.Collection> {
@@ -678,22 +721,21 @@ export function useMongoProxyEndpoint(api: string): boolean {
     MongoProxyEndpoints.Mpac,
     MongoProxyEndpoints.Prod,
     MongoProxyEndpoints.Fairfax,
+    MongoProxyEndpoints.Mooncake,
   ];
-  let canAccessMongoProxy: boolean = userContext.databaseAccount.properties.publicNetworkAccess === "Enabled";
-  if (
-    configContext.MONGO_PROXY_ENDPOINT !== MongoProxyEndpoints.Local &&
-    userContext.databaseAccount.properties.ipRules?.length > 0
-  ) {
-    canAccessMongoProxy = canAccessMongoProxy && configContext.MONGO_PROXY_OUTBOUND_IPS_ALLOWLISTED;
-  }
 
   return (
-    canAccessMongoProxy &&
     configContext.NEW_MONGO_APIS?.includes(api) &&
     activeMongoProxyEndpoints.includes(configContext.MONGO_PROXY_ENDPOINT)
   );
 }
 
+export class ThrottlingError extends Error {
+  constructor(message: string) {
+    super(message);
+  }
+}
+
 // TODO: This function throws most of the time except on Forbidden which is a bit strange
 // It causes problems for TypeScript understanding the types
 async function errorHandling(response: Response, action: string, params: unknown): Promise<void> {
@@ -703,6 +745,14 @@ async function errorHandling(response: Response, action: string, params: unknown
   if (response.status === HttpStatusCodes.Forbidden) {
     sendMessage({ type: MessageTypes.ForbiddenError, reason: errorMessage });
     return;
+  } else if (
+    response.status === HttpStatusCodes.BadRequest &&
+    errorMessage.includes("Error=16500") &&
+    errorMessage.includes("RetryAfterMs=")
+  ) {
+    // If throttling is happening, Cosmos DB will return a 400 with a body of:
+    // A write operation resulted in an error. Error=16500, RetryAfterMs=4, Details='Batch write error.
+    throw new ThrottlingError(errorMessage);
   }
   throw new Error(errorMessage);
 }

src/Common/PortalNotifications.ts

@@ -1,39 +0,0 @@
-import { configContext, Platform } from "../ConfigContext";
-import * as DataModels from "../Contracts/DataModels";
-import * as ViewModels from "../Contracts/ViewModels";
-import { userContext } from "../UserContext";
-import { getAuthorizationHeader } from "../Utils/AuthorizationUtils";
-
-const notificationsPath = () => {
-  switch (configContext.platform) {
-    case Platform.Hosted:
-      return "/api/guest/notifications";
-    case Platform.Portal:
-      return "/api/notifications";
-    default:
-      throw new Error(`Unknown platform: ${configContext.platform}`);
-  }
-};
-
-export const fetchPortalNotifications = async (): Promise<DataModels.Notification[]> => {
-  if (configContext.platform === Platform.Emulator || configContext.platform === Platform.Hosted) {
-    return [];
-  }
-
-  const { databaseAccount, resourceGroup, subscriptionId } = userContext;
-  const url = `${configContext.BACKEND_ENDPOINT}${notificationsPath()}?accountName=${
-    databaseAccount.name
-  }&subscriptionId=${subscriptionId}&resourceGroup=${resourceGroup}`;
-  const authorizationHeader: ViewModels.AuthorizationTokenHeaderMetadata = getAuthorizationHeader();
-  const headers = { [authorizationHeader.header]: authorizationHeader.token };
-
-  const response = await window.fetch(url, {
-    headers,
-  });
-
-  if (!response.ok) {
-    throw new Error(await response.text());
-  }
-
-  return (await response.json()) as DataModels.Notification[];
-};

src/Common/QueryError.test.ts

@@ -0,0 +1,94 @@
+import QueryError, { QueryErrorLocation, QueryErrorSeverity } from "Common/QueryError";
+
+describe("QueryError.tryParse", () => {
+  const testErrorLocationResolver = ({ start, end }: { start: number; end: number }) =>
+    new QueryErrorLocation(
+      { offset: start, lineNumber: start, column: start },
+      { offset: end, lineNumber: end, column: end },
+    );
+
+  it("handles a string error", () => {
+    const error = "error";
+    const result = QueryError.tryParse(error, testErrorLocationResolver);
+    expect(result).toEqual([new QueryError("error", QueryErrorSeverity.Error)]);
+  });
+
+  it("handles an error object", () => {
+    const error = {
+      message: "error",
+      severity: "Warning",
+      location: { start: 0, end: 1 },
+      code: "code",
+    };
+    const result = QueryError.tryParse(error, testErrorLocationResolver);
+    expect(result).toEqual([
+      new QueryError(
+        "error",
+        QueryErrorSeverity.Warning,
+        "code",
+        new QueryErrorLocation({ offset: 0, lineNumber: 0, column: 0 }, { offset: 1, lineNumber: 1, column: 1 }),
+      ),
+    ]);
+  });
+
+  it("handles a JSON message without syntax errors", () => {
+    const innerError = {
+      code: "BadRequest",
+      message: "Your query is bad, and you should feel bad",
+    };
+    const message = JSON.stringify(innerError);
+    const outerError = {
+      code: "BadRequest",
+      message,
+    };
+
+    const result = QueryError.tryParse(outerError, testErrorLocationResolver);
+    expect(result).toEqual([
+      new QueryError("Your query is bad, and you should feel bad", QueryErrorSeverity.Error, "BadRequest"),
+    ]);
+  });
+
+  // Imitate the value coming from the backend, which has the syntax errors serialized as JSON in the message.
+  it("handles single-nested error", () => {
+    const errors = [
+      {
+        message: "error1",
+        severity: "Warning",
+        location: { start: 0, end: 1 },
+        code: "code1",
+      },
+      {
+        message: "error2",
+        severity: "Error",
+        location: { start: 2, end: 3 },
+        code: "code2",
+      },
+    ];
+    const innerError = {
+      code: "BadRequest",
+      message: "Your query is bad, and you should feel bad",
+      errors,
+    };
+    const message = JSON.stringify(innerError);
+    const outerError = {
+      code: "BadRequest",
+      message,
+    };
+
+    const result = QueryError.tryParse(outerError, testErrorLocationResolver);
+    expect(result).toEqual([
+      new QueryError(
+        "error1",
+        QueryErrorSeverity.Warning,
+        "code1",
+        new QueryErrorLocation({ offset: 0, lineNumber: 0, column: 0 }, { offset: 1, lineNumber: 1, column: 1 }),
+      ),
+      new QueryError(
+        "error2",
+        QueryErrorSeverity.Error,
+        "code2",
+        new QueryErrorLocation({ offset: 2, lineNumber: 2, column: 2 }, { offset: 3, lineNumber: 3, column: 3 }),
+      ),
+    ]);
+  });
+});

src/Common/QueryError.ts

@@ -0,0 +1,247 @@
+import { monaco } from "Explorer/LazyMonaco";
+import { getRUThreshold, ruThresholdEnabled } from "Shared/StorageUtility";
+
+export enum QueryErrorSeverity {
+  Error = "Error",
+  Warning = "Warning",
+}
+
+export class QueryErrorLocation {
+  constructor(
+    public start: ErrorPosition,
+    public end: ErrorPosition,
+  ) {}
+}
+
+export class ErrorPosition {
+  constructor(
+    public offset: number,
+    public lineNumber?: number,
+    public column?: number,
+  ) {}
+}
+
+// Maps severities to numbers for sorting.
+const severityMap: Record<QueryErrorSeverity, number> = {
+  Error: 1,
+  Warning: 0,
+};
+
+export function compareSeverity(left: QueryErrorSeverity, right: QueryErrorSeverity): number {
+  return severityMap[left] - severityMap[right];
+}
+
+export function createMonacoErrorLocationResolver(
+  editor: monaco.editor.IStandaloneCodeEditor,
+  selection?: monaco.Selection,
+): (location: { start: number; end: number }) => QueryErrorLocation {
+  return ({ start, end }) => {
+    // Start and end are absolute offsets (character index) in the document.
+    // But we need line numbers and columns for the monaco editor.
+    // To get those, we use the editor's model to convert the offsets to positions.
+    const model = editor.getModel();
+    if (!model) {
+      return new QueryErrorLocation(new ErrorPosition(start), new ErrorPosition(end));
+    }
+
+    // If the error was found in a selection, adjust the start and end positions to be relative to the document.
+    if (selection) {
+      // Get the character index of the start of the selection.
+      const selectionStartOffset = model.getOffsetAt(selection.getStartPosition());
+
+      // Adjust the start and end positions to be relative to the document.
+      start = selectionStartOffset + start;
+      end = selectionStartOffset + end;
+
+      // Now, when we resolve the positions, they will be relative to the document and appear in the correct location.
+    }
+
+    const startPos = model.getPositionAt(start);
+    const endPos = model.getPositionAt(end);
+    return new QueryErrorLocation(
+      new ErrorPosition(start, startPos.lineNumber, startPos.column),
+      new ErrorPosition(end, endPos.lineNumber, endPos.column),
+    );
+  };
+}
+
+export const createMonacoMarkersForQueryErrors = (errors: QueryError[]) => {
+  if (!errors) {
+    return [];
+  }
+
+  return errors
+    .map((error): monaco.editor.IMarkerData => {
+      // Validate that we have what we need to make a marker
+      if (
+        error.location === undefined ||
+        error.location.start === undefined ||
+        error.location.end === undefined ||
+        error.location.start.lineNumber === undefined ||
+        error.location.end.lineNumber === undefined ||
+        error.location.start.column === undefined ||
+        error.location.end.column === undefined
+      ) {
+        return null;
+      }
+
+      return {
+        message: error.message,
+        severity: error.getMonacoSeverity(),
+        startLineNumber: error.location.start.lineNumber,
+        startColumn: error.location.start.column,
+        endLineNumber: error.location.end.lineNumber,
+        endColumn: error.location.end.column,
+      };
+    })
+    .filter((marker) => !!marker);
+};
+
+export interface ErrorEnrichment {
+  title?: string;
+  message: string;
+  learnMoreUrl?: string;
+}
+
+const REPLACEMENT_MESSAGES: Record<string, (original: string) => string> = {
+  OPERATION_RU_LIMIT_EXCEEDED: (original) => {
+    if (ruThresholdEnabled()) {
+      const threshold = getRUThreshold();
+      return `Query exceeded the Request Unit (RU) limit of ${threshold} RUs. You can change this limit in Data Explorer settings.`;
+    }
+    return original;
+  },
+};
+
+const HELP_LINKS: Record<string, string> = {
+  OPERATION_RU_LIMIT_EXCEEDED:
+    "https://learn.microsoft.com/en-us/azure/cosmos-db/data-explorer#configure-request-unit-threshold",
+};
+
+export default class QueryError {
+  message: string;
+  helpLink?: string;
+
+  constructor(
+    message: string,
+    public severity: QueryErrorSeverity,
+    public code?: string,
+    public location?: QueryErrorLocation,
+    helpLink?: string,
+  ) {
+    // Automatically replace the message with a more Data Explorer-specific message if we have for this error code.
+    this.message = REPLACEMENT_MESSAGES[code] ? REPLACEMENT_MESSAGES[code](message) : message;
+
+    // Automatically set the help link if we have one for this error code.
+    this.helpLink = helpLink ?? HELP_LINKS[code];
+  }
+
+  getMonacoSeverity(): monaco.MarkerSeverity {
+    // It's very difficult to use the monaco.MarkerSeverity enum from here, so we'll just use the numbers directly.
+    // See: https://microsoft.github.io/monaco-editor/typedoc/enums/MarkerSeverity.html
+    switch (this.severity) {
+      case QueryErrorSeverity.Error:
+        return 8;
+      case QueryErrorSeverity.Warning:
+        return 4;
+      default:
+        return 2; // Info
+    }
+  }
+
+  /** Attempts to parse a query error from a string or object.
+   *
+   * @param error The error to parse.
+   * @returns An array of query errors if the error could be parsed, or null otherwise.
+   */
+  static tryParse(
+    error: unknown,
+    locationResolver?: (location: { start: number; end: number }) => QueryErrorLocation,
+  ): QueryError[] {
+    locationResolver =
+      locationResolver ||
+      (({ start, end }) => new QueryErrorLocation(new ErrorPosition(start), new ErrorPosition(end)));
+    const errors = QueryError.tryParseObject(error, locationResolver);
+    if (errors !== null) {
+      return errors;
+    }
+
+    const errorMessage = error as string;
+
+    // Map some well known messages to richer errors
+    const knownError = knownErrors[errorMessage];
+    if (knownError) {
+      return [knownError];
+    } else {
+      return [new QueryError(errorMessage, QueryErrorSeverity.Error)];
+    }
+  }
+
+  static read(
+    error: unknown,
+    locationResolver: (location: { start: number; end: number }) => QueryErrorLocation,
+  ): QueryError | null {
+    if (typeof error !== "object" || error === null) {
+      return null;
+    }
+
+    const message = "message" in error && typeof error.message === "string" ? error.message : undefined;
+    if (!message) {
+      return null; // Invalid error (no message).
+    }
+
+    const severity =
+      "severity" in error && typeof error.severity === "string"
+        ? (error.severity as QueryErrorSeverity)
+        : QueryErrorSeverity.Error;
+    const location =
+      "location" in error && typeof error.location === "object"
+        ? locationResolver(error.location as { start: number; end: number })
+        : undefined;
+    const code = "code" in error && typeof error.code === "string" ? error.code : undefined;
+    return new QueryError(message, severity, code, location);
+  }
+
+  private static tryParseObject(
+    error: unknown,
+    locationResolver: (location: { start: number; end: number }) => QueryErrorLocation,
+  ): QueryError[] | null {
+    let message: string | undefined;
+    if (typeof error === "object" && "message" in error && typeof error.message === "string") {
+      message = error.message;
+    } else {
+      // Unsupported error format.
+      return null;
+    }
+
+    // Assign to a new variable because of a TypeScript flow typing quirk, see below.
+    if (message.startsWith("Message: ")) {
+      // Reassigning this to 'error' restores the original type of 'error', which is 'unknown'.
+      // So we use a separate variable to avoid this.
+      message = message.substring("Message: ".length);
+    }
+
+    const lines = message.split("\n");
+    message = lines[0].trim();
+
+    let parsed: unknown;
+    try {
+      parsed = JSON.parse(message);
+    } catch (e) {
+      // The message doesn't contain a nested error.
+      return [QueryError.read(error, locationResolver)];
+    }
+
+    if (typeof parsed === "object") {
+      if ("errors" in parsed && Array.isArray(parsed.errors)) {
+        return parsed.errors.map((e) => QueryError.read(e, locationResolver)).filter((e) => e !== null);
+      }
+      return [QueryError.read(parsed, locationResolver)];
+    }
+    return null;
+  }
+}
+
+const knownErrors: Record<string, QueryError> = {
+  "User aborted query.": new QueryError("User aborted query.", QueryErrorSeverity.Warning),
+};

src/Common/Tooltip/InfoTooltip.tsx

@@ -3,11 +3,12 @@ import * as React from "react";
 
 export interface TooltipProps {
   children: string;
+  className?: string;
 }
 
-export const InfoTooltip: React.FunctionComponent<TooltipProps> = ({ children }: TooltipProps) => {
+export const InfoTooltip: React.FunctionComponent<TooltipProps> = ({ children, className }: TooltipProps) => {
   return (
-    <span>
+    <span className={className}>
       <TooltipHost content={children}>
         <Icon iconName="Info" ariaLabel={children} className="panelInfoIcon" tabIndex={0} />
       </TooltipHost>

src/Common/dataAccess/deleteDocument.ts

@@ -26,14 +26,23 @@ export const deleteDocument = async (collection: CollectionBase, documentId: Doc
   }
 };
 
+export interface IBulkDeleteResult {
+  documentId: DocumentId;
+  requestCharge: number;
+  statusCode: number;
+  retryAfterMilliseconds?: number;
+}
+
 /**
  * Bulk delete documents
  * @param collection
  * @param documentId
- * @returns array of ids that were successfully deleted
+ * @returns array of results and status codes
  */
-export const deleteDocuments = async (collection: CollectionBase, documentIds: DocumentId[]): Promise<DocumentId[]> => {
-  const nbDocuments = documentIds.length;
+export const deleteDocuments = async (
+  collection: CollectionBase,
+  documentIds: DocumentId[],
+): Promise<IBulkDeleteResult[]> => {
   const clearMessage = logConsoleProgress(`Deleting ${documentIds.length} ${getEntityName(true)}`);
   try {
     const v2Container = await client().database(collection.databaseId).container(collection.id());
@@ -56,18 +65,17 @@ export const deleteDocuments = async (collection: CollectionBase, documentIds: D
         operationType: BulkOperationType.Delete,
       }));
 
-      const promise = v2Container.items.bulk(operations).then((bulkResult) => {
-        return documentIdsChunk.filter((_, index) => bulkResult[index].statusCode === 204);
+      const promise = v2Container.items.bulk(operations).then((bulkResults) => {
+        return bulkResults.map((bulkResult, index) => {
+          const documentId = documentIdsChunk[index];
+          return { ...bulkResult, documentId };
+        });
       });
       promiseArray.push(promise);
     }
 
     const allResult = await Promise.all(promiseArray);
     const flatAllResult = Array.prototype.concat.apply([], allResult);
-    logConsoleInfo(
-      `Successfully deleted ${getEntityName(flatAllResult.length > 1)}: ${flatAllResult.length} out of ${nbDocuments}`,
-    );
-    // TODO: handle case result.length != nbDocuments
     return flatAllResult;
   } catch (error) {
     handleError(

src/ConfigContext.ts

@@ -49,14 +49,12 @@ export interface ConfigContext {
   ARCADIA_ENDPOINT: string;
   ARCADIA_LIVY_ENDPOINT_DNS_ZONE: string;
   BACKEND_ENDPOINT?: string;
-  PORTAL_BACKEND_ENDPOINT?: string;
+  PORTAL_BACKEND_ENDPOINT: string;
   NEW_BACKEND_APIS?: BackendApi[];
   MONGO_BACKEND_ENDPOINT?: string;
-  MONGO_PROXY_ENDPOINT?: string;
-  MONGO_PROXY_OUTBOUND_IPS_ALLOWLISTED?: boolean;
+  MONGO_PROXY_ENDPOINT: string;
   NEW_MONGO_APIS?: string[];
-  CASSANDRA_PROXY_ENDPOINT?: string;
-  CASSANDRA_PROXY_OUTBOUND_IPS_ALLOWLISTED: boolean;
+  CASSANDRA_PROXY_ENDPOINT: string;
   NEW_CASSANDRA_APIS?: string[];
   PROXY_PATH?: string;
   JUNO_ENDPOINT: string;
@@ -87,7 +85,7 @@ let configContext: Readonly<ConfigContext> = {
     `^https:\\/\\/.*\\.analysis-df\\.net$`,
     `^https:\\/\\/.*\\.analysis-df\\.windows\\.net$`,
     `^https:\\/\\/.*\\.azure-test\\.net$`,
-    `^https:\\/\\/cosmos-explorer-preview\\.azurewebsites\\.net`,
+    `^https:\\/\\/cosmos-explorer-preview\\.azurewebsites\\.net$`,
   ], // Webpack injects this at build time
   gitSha: process.env.GIT_SHA,
   hostedExplorerURL: "https://cosmos.azure.com/",
@@ -109,19 +107,18 @@ let configContext: Readonly<ConfigContext> = {
   PORTAL_BACKEND_ENDPOINT: PortalBackendEndpoints.Prod,
   MONGO_PROXY_ENDPOINT: MongoProxyEndpoints.Prod,
   NEW_MONGO_APIS: [
-    // "resourcelist",
-    // "queryDocuments",
-    // "createDocument",
-    // "readDocument",
-    // "updateDocument",
-    // "deleteDocument",
-    // "createCollectionWithProxy",
-    // "legacyMongoShell",
+    "resourcelist",
+    "queryDocuments",
+    "createDocument",
+    "readDocument",
+    "updateDocument",
+    "deleteDocument",
+    "createCollectionWithProxy",
+    "legacyMongoShell",
+    // "bulkdelete",
   ],
-  MONGO_PROXY_OUTBOUND_IPS_ALLOWLISTED: false,
   CASSANDRA_PROXY_ENDPOINT: CassandraProxyEndpoints.Prod,
   NEW_CASSANDRA_APIS: ["postQuery", "createOrDelete", "getKeys", "getSchema"],
-  CASSANDRA_PROXY_OUTBOUND_IPS_ALLOWLISTED: false,
   isTerminalEnabled: false,
   isPhoenixEnabled: false,
 };

src/Contracts/ViewModels.ts

@@ -98,7 +98,6 @@ export interface Database extends TreeNode {
   openAddCollection(database: Database, event: MouseEvent): void;
   onSettingsClick: () => void;
   loadOffer(): Promise<void>;
-  getPendingThroughputSplitNotification(): Promise<DataModels.Notification>;
 }
 
 export interface CollectionBase extends TreeNode {
@@ -191,8 +190,6 @@ export interface Collection extends CollectionBase {
   onDragOver(source: Collection, event: { originalEvent: DragEvent }): void;
   onDrop(source: Collection, event: { originalEvent: DragEvent }): void;
   uploadFiles(fileList: FileList): Promise<{ data: UploadDetailsRecord[] }>;
-
-  getPendingThroughputSplitNotification(): Promise<DataModels.Notification>;
 }
 
 /**

src/Explorer/ContextMenuButtonFactory.tsx

@@ -41,6 +41,10 @@ export interface DatabaseContextMenuButtonParams {
  * New resource tree (in ReactJS)
  */
 export const createDatabaseContextMenu = (container: Explorer, databaseId: string): TreeNodeMenuItem[] => {
+  if (configContext.platform === Platform.Fabric && userContext.fabricContext?.isReadOnly) {
+    return undefined;
+  }
+
   const items: TreeNodeMenuItem[] = [
     {
       iconSrc: AddCollectionIcon,

src/Explorer/Controls/CommandButton/CommandButtonComponent.tsx

@@ -1,23 +1,14 @@
 /**
  * React component for Command button component.
  */
+import Explorer from "Explorer/Explorer";
 import { KeyboardAction } from "KeyboardShortcuts";
 import * as React from "react";
-import CollapseChevronDownIcon from "../../../../images/QueryBuilder/CollapseChevronDown_16x.png";
-import { KeyCodes } from "../../../Common/Constants";
-import { Action, ActionModifiers } from "../../../Shared/Telemetry/TelemetryConstants";
-import * as TelemetryProcessor from "../../../Shared/Telemetry/TelemetryProcessor";
-import * as StringUtils from "../../../Utils/StringUtils";
 
 /**
  * Options for this component
  */
 export interface CommandButtonComponentProps {
-  /**
-   * font icon name for the button
-   */
-  iconName?: string;
-
   /**
    * image source for the button icon
    */
@@ -31,7 +22,7 @@ export interface CommandButtonComponentProps {
   /**
    * Click handler for command button click
    */
-  onCommandClick?: (e: React.SyntheticEvent | KeyboardEvent) => void;
+  onCommandClick?: (e: React.SyntheticEvent | KeyboardEvent, container: Explorer) => void;
 
   /**
    * Label for the button
@@ -120,157 +111,3 @@ export interface CommandButtonComponentProps {
    */
   keyboardAction?: KeyboardAction;
 }
-
-export class CommandButtonComponent extends React.Component<CommandButtonComponentProps> {
-  private dropdownElt: HTMLElement;
-  private expandButtonElt: HTMLElement;
-
-  public componentDidUpdate(): void {
-    if (!this.dropdownElt || !this.expandButtonElt) {
-      return;
-    }
-    $(this.dropdownElt).offset({ left: $(this.expandButtonElt).offset().left });
-  }
-
-  private onKeyPress(event: React.KeyboardEvent): boolean {
-    if (event.keyCode === KeyCodes.Space || event.keyCode === KeyCodes.Enter) {
-      this.commandClickCallback && this.commandClickCallback(event);
-      event.stopPropagation();
-      return false;
-    }
-    return true;
-  }
-
-  private onLauncherKeyDown(event: React.KeyboardEvent<HTMLDivElement>): boolean {
-    if (event.keyCode === KeyCodes.DownArrow) {
-      $(this.dropdownElt).hide();
-      $(this.dropdownElt).show().focus();
-      event.stopPropagation();
-      return false;
-    }
-    if (event.keyCode === KeyCodes.UpArrow) {
-      $(this.dropdownElt).hide();
-      event.stopPropagation();
-      return false;
-    }
-    return true;
-  }
-
-  private getCommandButtonId(): string {
-    if (this.props.id) {
-      return this.props.id;
-    } else {
-      return `commandButton-${StringUtils.stripSpacesFromString(this.props.commandButtonLabel)}`;
-    }
-  }
-
-  public static renderButton(options: CommandButtonComponentProps, key?: string): JSX.Element {
-    return <CommandButtonComponent key={key} {...options} />;
-  }
-
-  private commandClickCallback(e: React.SyntheticEvent): void {
-    if (this.props.disabled) {
-      return;
-    }
-
-    // TODO Query component's parent, not document
-    const el = document.querySelector(".commandDropdownContainer") as HTMLElement;
-    if (el) {
-      el.style.display = "none";
-    }
-    this.props.onCommandClick(e);
-    TelemetryProcessor.trace(Action.SelectItem, ActionModifiers.Mark, {
-      commandButtonClicked: this.props.commandButtonLabel,
-    });
-  }
-
-  private renderChildren(): JSX.Element {
-    if (!this.props.children || this.props.children.length < 1) {
-      return <React.Fragment />;
-    }
-
-    return (
-      <div
-        className="commandExpand"
-        tabIndex={0}
-        ref={(ref: HTMLElement) => {
-          this.expandButtonElt = ref;
-        }}
-        onKeyDown={(e: React.KeyboardEvent<HTMLDivElement>) => this.onLauncherKeyDown(e)}
-      >
-        <div className="commandDropdownLauncher">
-          <span className="partialSplitter" />
-          <span className="expandDropdown">
-            <img src={CollapseChevronDownIcon} />
-          </span>
-        </div>
-        <div
-          className="commandDropdownContainer"
-          ref={(ref: HTMLElement) => {
-            this.dropdownElt = ref;
-          }}
-        >
-          <div className="commandDropdown">
-            {this.props.children.map((c: CommandButtonComponentProps, index: number): JSX.Element => {
-              return CommandButtonComponent.renderButton(c, `${index}`);
-            })}
-          </div>
-        </div>
-      </div>
-    );
-  }
-
-  public static renderLabel(
-    props: CommandButtonComponentProps,
-    key?: string,
-    refct?: (input: HTMLElement) => void,
-  ): JSX.Element {
-    if (!props.commandButtonLabel) {
-      return <React.Fragment />;
-    }
-
-    return (
-      <span className="commandLabel" key={key} ref={refct}>
-        {props.commandButtonLabel}
-      </span>
-    );
-  }
-
-  public render(): JSX.Element {
-    let mainClassName = "commandButtonComponent";
-    if (this.props.disabled) {
-      mainClassName += " commandDisabled";
-    }
-    if (this.props.isSelected) {
-      mainClassName += " selectedButton";
-    }
-
-    let contentClassName = "commandContent";
-    if (this.props.children && this.props.children.length > 0) {
-      contentClassName += " hasHiddenItems";
-    }
-
-    return (
-      <div className="commandButtonReact">
-        <span
-          className={mainClassName}
-          role="menuitem"
-          tabIndex={this.props.tabIndex}
-          onKeyPress={(e: React.KeyboardEvent<HTMLSpanElement>) => this.onKeyPress(e)}
-          title={this.props.tooltipText}
-          id={this.getCommandButtonId()}
-          aria-disabled={this.props.disabled}
-          aria-haspopup={this.props.hasPopup}
-          aria-label={this.props.ariaLabel}
-          onClick={(e: React.MouseEvent<HTMLSpanElement>) => this.commandClickCallback(e)}
-        >
-          <div className={contentClassName}>
-            <img className="commandIcon" src={this.props.iconSrc} alt={this.props.iconAlt} />
-            {CommandButtonComponent.renderLabel(this.props)}
-          </div>
-        </span>
-        {this.props.children && this.renderChildren()}
-      </div>
-    );
-  }
-}

src/Explorer/Controls/Dialog.tsx

@@ -35,7 +35,7 @@ export interface DialogState {
     textFieldProps?: TextFieldProps,
     primaryButtonDisabled?: boolean,
   ) => void;
-  showOkModalDialog: (title: string, subText: string) => void;
+  showOkModalDialog: (title: string, subText: string, linkProps?: LinkProps) => void;
 }
 
 export const useDialog: UseStore<DialogState> = create((set, get) => ({
@@ -83,7 +83,7 @@ export const useDialog: UseStore<DialogState> = create((set, get) => ({
       textFieldProps,
       primaryButtonDisabled,
     }),
-  showOkModalDialog: (title: string, subText: string): void =>
+  showOkModalDialog: (title: string, subText: string, linkProps?: LinkProps): void =>
     get().openDialog({
       isModal: true,
       title,
@@ -94,6 +94,7 @@ export const useDialog: UseStore<DialogState> = create((set, get) => ({
         get().closeDialog();
       },
       onSecondaryButtonClick: undefined,
+      linkProps,
     }),
 }));
 

src/Explorer/Controls/Editor/EditorReact.tsx

@@ -3,6 +3,37 @@ import * as React from "react";
 import { loadMonaco, monaco } from "../../LazyMonaco";
 // import "./EditorReact.less";
 
+// In development, add a function to window to allow us to get the editor instance for a given element
+if (process.env.NODE_ENV === "development") {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  const win = window as any;
+  win._monaco_getEditorForElement =
+    win._monaco_getEditorForElement ||
+    ((element: HTMLElement) => {
+      const editorId = element.dataset["monacoEditorId"];
+      if (!editorId || !win.__monaco_editors || typeof win.__monaco_editors !== "object") {
+        return null;
+      }
+      return win.__monaco_editors[editorId];
+    });
+
+  win._monaco_getEditorContentForElement =
+    win._monaco_getEditorContentForElement ||
+    ((element: HTMLElement) => {
+      const editor = win._monaco_getEditorForElement(element);
+      return editor ? editor.getValue() : null;
+    });
+
+  win._monaco_setEditorContentForElement =
+    win._monaco_setEditorContentForElement ||
+    ((element: HTMLElement, text: string) => {
+      const editor = win._monaco_getEditorForElement(element);
+      if (editor) {
+        editor.setValue(text);
+      }
+    });
+}
+
 interface EditorReactStates {
   showEditor: boolean;
 }
@@ -11,7 +42,7 @@ export interface EditorReactProps {
   content: string;
   isReadOnly: boolean;
   ariaLabel: string; // Sets what will be read to the user to define the control
-  onContentSelected?: (selectedContent: string) => void; // Called when text is selected
+  onContentSelected?: (selectedContent: string, selection: monaco.Selection) => void; // Called when text is selected
   onContentChanged?: (newContent: string) => void; // Called when text is changed
   theme?: string; // Monaco editor theme
   wordWrap?: monaco.editor.IEditorOptions["wordWrap"];
@@ -25,6 +56,7 @@ export interface EditorReactProps {
   className?: string;
   spinnerClassName?: string;
 
+  modelMarkers?: monaco.editor.IMarkerData[];
   enableWordWrapContextMenuItem?: boolean; // Enable/Disable "Word Wrap" context menu item
   onWordWrapChanged?: (wordWrap: "on" | "off") => void; // Called when word wrap is changed
 }
@@ -32,10 +64,25 @@ export interface EditorReactProps {
 export class EditorReact extends React.Component<EditorReactProps, EditorReactStates> {
   private static readonly VIEWING_OPTIONS_GROUP_ID = "viewingoptions"; // Group ID for the context menu group
   private rootNode: HTMLElement;
-  private editor: monaco.editor.IStandaloneCodeEditor;
+  public editor: monaco.editor.IStandaloneCodeEditor;
   private selectionListener: monaco.IDisposable;
-
-  private monacoEditorOptionsWordWrap: monaco.editor.EditorOption;
+  monacoApi: {
+    default: typeof monaco;
+    Emitter: typeof monaco.Emitter;
+    MarkerTag: typeof monaco.MarkerTag;
+    MarkerSeverity: typeof monaco.MarkerSeverity;
+    CancellationTokenSource: typeof monaco.CancellationTokenSource;
+    Uri: typeof monaco.Uri;
+    KeyCode: typeof monaco.KeyCode;
+    KeyMod: typeof monaco.KeyMod;
+    Position: typeof monaco.Position;
+    Range: typeof monaco.Range;
+    Selection: typeof monaco.Selection;
+    SelectionDirection: typeof monaco.SelectionDirection;
+    Token: typeof monaco.Token;
+    editor: typeof monaco.editor;
+    languages: typeof monaco.languages;
+  };
 
   public constructor(props: EditorReactProps) {
     super(props);
@@ -64,7 +111,7 @@ export class EditorReact extends React.Component<EditorReactProps, EditorReactSt
 
     if (this.props.content !== existingContent) {
       if (this.props.isReadOnly) {
-        this.editor.setValue(this.props.content);
+        this.editor.setValue(this.props.content || ""); // Monaco throws an error if you set the value to undefined.
       } else {
         this.editor.pushUndoStop();
         this.editor.executeEdits("", [
@@ -75,6 +122,8 @@ export class EditorReact extends React.Component<EditorReactProps, EditorReactSt
         ]);
       }
     }
+
+    this.monacoApi.editor.setModelMarkers(this.editor.getModel(), "owner", this.props.modelMarkers || []);
   }
 
   public componentWillUnmount(): void {
@@ -88,6 +137,7 @@ export class EditorReact extends React.Component<EditorReactProps, EditorReactSt
           <Spinner size={SpinnerSize.large} className={this.props.spinnerClassName || "spinner"} />
         )}
         <div
+          data-test="EditorReact/Host/Unloaded"
           className={this.props.className || "jsonEditor"}
           style={this.props.monacoContainerStyles}
           ref={(elt: HTMLElement) => this.setRef(elt)}
@@ -98,6 +148,18 @@ export class EditorReact extends React.Component<EditorReactProps, EditorReactSt
 
   protected configureEditor(editor: monaco.editor.IStandaloneCodeEditor) {
     this.editor = editor;
+    this.rootNode.dataset["test"] = "EditorReact/Host/Loaded";
+
+    // In development, we want to be able to access the editor instance from the console
+    if (process.env.NODE_ENV === "development") {
+      this.rootNode.dataset["monacoEditorId"] = this.editor.getId();
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      const win = window as any;
+
+      win["__monaco_editors"] = win["__monaco_editors"] || {};
+      win["__monaco_editors"][this.editor.getId()] = this.editor;
+    }
+
     if (!this.props.isReadOnly && this.props.onContentChanged) {
       // Hooking the model's onDidChangeContent event because of some event ordering issues.
       // If a single user input causes BOTH the editor content to change AND the cursor selection to change (which is likely),
@@ -115,7 +177,7 @@ export class EditorReact extends React.Component<EditorReactProps, EditorReactSt
       this.selectionListener = this.editor.onDidChangeCursorSelection(
         (event: monaco.editor.ICursorSelectionChangedEvent) => {
           const selectedContent: string = this.editor.getModel().getValueInRange(event.selection);
-          this.props.onContentSelected(selectedContent);
+          this.props.onContentSelected(selectedContent, event.selection);
         },
       );
     }
@@ -130,7 +192,7 @@ export class EditorReact extends React.Component<EditorReactProps, EditorReactSt
         // Method that will be executed when the action is triggered.
         // @param editor The editor instance is passed in as a convenience
         run: (ed) => {
-          const newOption = ed.getOption(this.monacoEditorOptionsWordWrap) === "on" ? "off" : "on";
+          const newOption = ed.getOption(this.monacoApi.editor.EditorOption.wordWrap) === "on" ? "off" : "on";
           ed.updateOptions({ wordWrap: newOption });
           this.props.onWordWrapChanged(newOption);
         },
@@ -156,16 +218,14 @@ export class EditorReact extends React.Component<EditorReactProps, EditorReactSt
       lineDecorationsWidth: this.props.lineDecorationsWidth,
       minimap: this.props.minimap,
       scrollBeyondLastLine: this.props.scrollBeyondLastLine,
+      fixedOverflowWidgets: true,
     };
 
     this.rootNode.innerHTML = "";
-    const lazymonaco = await loadMonaco();
-
-    // We can only get this constant after loading monaco lazily
-    this.monacoEditorOptionsWordWrap = lazymonaco.editor.EditorOption.wordWrap;
+    this.monacoApi = await loadMonaco();
 
     try {
-      createCallback(lazymonaco?.editor?.create(this.rootNode, options));
+      createCallback(this.monacoApi.editor.create(this.rootNode, options));
     } catch (error) {
       // This could happen if the parent node suddenly disappears during create()
       console.error("Unable to create EditorReact", error);

src/Explorer/Controls/IndeterminateProgressBar.tsx

@@ -0,0 +1,37 @@
+import { ProgressBar, makeStyles } from "@fluentui/react-components";
+import React from "react";
+
+const useStyles = makeStyles({
+  indeterminateProgressBarRoot: {
+    "@media screen and (prefers-reduced-motion: reduce)": {
+      animationIterationCount: "infinite",
+      animationDuration: "3s",
+      animationName: {
+        "0%": {
+          opacity: ".2", // matches indeterminate bar width
+        },
+        "50%": {
+          opacity: "1",
+        },
+        "100%": {
+          opacity: ".2",
+        },
+      },
+    },
+  },
+  indeterminateProgressBarBar: {
+    "@media screen and (prefers-reduced-motion: reduce)": {
+      maxWidth: "100%",
+    },
+  },
+});
+
+export const IndeterminateProgressBar: React.FC = () => {
+  const styles = useStyles();
+  return (
+    <ProgressBar
+      bar={{ className: styles.indeterminateProgressBarBar }}
+      className={styles.indeterminateProgressBarRoot}
+    />
+  );
+};

src/Explorer/Controls/MessageBanner.tsx

@@ -0,0 +1,68 @@
+import { Button, MessageBar, MessageBarActions, MessageBarBody } from "@fluentui/react-components";
+import { DismissRegular } from "@fluentui/react-icons";
+import React, { useState } from "react";
+
+export enum MessageBannerState {
+  /** The banner should be visible if the triggering conditions are met. */
+  Allowed = "allowed",
+
+  /** The banner has been dismissed by the user and will not be shown until the component is recreated, even if the visibility condition is true. */
+  Dismissed = "dismissed",
+
+  /** The banner has been supressed by the user and will not be shown at all, even if the visibility condition is true. */
+  Suppressed = "suppressed",
+}
+
+export type MessageBannerProps = {
+  /** A CSS class for the root MessageBar component */
+  className: string;
+
+  /** A unique ID for the message that will be used to store it's dismiss/suppress state across sessions. */
+  messageId: string;
+
+  /** The current visibility state for the banner IGNORING the user's dimiss/suppress preference
+   *
+   * If this value is true but the user has dismissed the banner, the banner will NOT be shown.
+   */
+  visible: boolean;
+};
+
+/** A component that shows a message banner which can be dismissed by the user.
+ *
+ * In the future, this can also support persisting the dismissed state in local storage without requiring changes to all the components that use it.
+ *
+ * A message banner can be in three "states":
+ * - Allowed: The banner should be visible if the triggering conditions are met.
+ * - Dismissed: The banner has been dismissed by the user and will not be shown until the component is recreated, even if the visibility condition is true.
+ * - Suppressed: The banner has been supressed by the user and will not be shown at all, even if the visibility condition is true.
+ *
+ * The "Dismissed" state represents the user clicking the "x" in the banner to dismiss it.
+ * The "Suppressed" state represents the user clicking "Don't show this again".
+ */
+export const MessageBanner: React.FC<MessageBannerProps> = ({ visible, className, children }) => {
+  const [state, setState] = useState<MessageBannerState>(MessageBannerState.Allowed);
+
+  if (state !== MessageBannerState.Allowed) {
+    return null;
+  }
+
+  if (!visible) {
+    return null;
+  }
+
+  return (
+    <MessageBar className={className}>
+      <MessageBarBody>{children}</MessageBarBody>
+      <MessageBarActions
+        containerAction={
+          <Button
+            aria-label="dismiss"
+            appearance="transparent"
+            icon={<DismissRegular />}
+            onClick={() => setState(MessageBannerState.Dismissed)}
+          />
+        }
+      ></MessageBarActions>
+    </MessageBar>
+  );
+};

src/Explorer/Controls/ProgressModalDialog.tsx

@@ -0,0 +1,79 @@
+import {
+  Button,
+  Dialog,
+  DialogActions,
+  DialogBody,
+  DialogContent,
+  DialogSurface,
+  DialogTitle,
+  DialogTrigger,
+  Field,
+  ProgressBar,
+} from "@fluentui/react-components";
+import * as React from "react";
+
+interface ProgressModalDialogProps {
+  isOpen: boolean;
+  title: string;
+  message: string;
+  maxValue: number;
+  value: number;
+  dismissText: string;
+  onDismiss: () => void;
+  onCancel?: () => void;
+  /* mode drives the state of the action buttons
+   * inProgress: Show cancel button
+   * completed: Show close button
+   * aborting: Show cancel button, but disabled
+   * aborted: Show close button
+   */
+  mode?: "inProgress" | "completed" | "aborting" | "aborted";
+}
+
+/**
+ * React component that renders a modal dialog with a progress bar.
+ */
+export const ProgressModalDialog: React.FC<ProgressModalDialogProps> = ({
+  isOpen,
+  title,
+  message,
+  maxValue,
+  value,
+  dismissText,
+  onCancel,
+  onDismiss,
+  children,
+  mode = "completed",
+}) => (
+  <Dialog
+    open={isOpen}
+    onOpenChange={(event, data) => {
+      if (!data.open) {
+        onDismiss();
+      }
+    }}
+  >
+    <DialogSurface>
+      <DialogBody>
+        <DialogTitle>{title}</DialogTitle>
+        <DialogContent>
+          <Field validationMessage={message} validationState="none">
+            <ProgressBar max={maxValue} value={value} />
+          </Field>
+          {children}
+        </DialogContent>
+        <DialogActions>
+          {mode === "inProgress" || mode === "aborting" ? (
+            <Button appearance="secondary" onClick={onCancel} disabled={mode === "aborting"}>
+              {dismissText}
+            </Button>
+          ) : (
+            <DialogTrigger disableButtonEnhancement>
+              <Button appearance="primary">Close</Button>
+            </DialogTrigger>
+          )}
+        </DialogActions>
+      </DialogBody>
+    </DialogSurface>
+  </Dialog>
+);

src/Explorer/Controls/Settings/SettingsComponent.test.tsx

@@ -134,7 +134,6 @@ describe("SettingsComponent", () => {
       readSettings: undefined,
       onSettingsClick: undefined,
       loadOffer: undefined,
-      getPendingThroughputSplitNotification: undefined,
     } as ViewModels.Database;
     newCollection.getDatabase = () => newDatabase;
     newCollection.offer = ko.observable(undefined);

src/Explorer/Controls/Settings/SettingsComponent.tsx

@@ -7,6 +7,7 @@ import {
   ContainerVectorPolicyComponent,
   ContainerVectorPolicyComponentProps,
 } from "Explorer/Controls/Settings/SettingsSubComponents/ContainerVectorPolicyComponent";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import { useDatabases } from "Explorer/useDatabases";
 import { isVectorSearchEnabled } from "Utils/CapabilityUtils";
 import { isRunningOnPublicCloud } from "Utils/CloudUtils";
@@ -32,7 +33,6 @@ import {
   PartitionKeyComponent,
   PartitionKeyComponentProps,
 } from "../../Controls/Settings/SettingsSubComponents/PartitionKeyComponent";
-import { useCommandBar } from "../../Menus/CommandBar/CommandBarComponentAdapter";
 import { SettingsTabV2 } from "../../Tabs/SettingsTabV2";
 import "./SettingsComponent.less";
 import { mongoIndexingPolicyAADError } from "./SettingsRenderUtils";
@@ -130,7 +130,6 @@ export interface SettingsComponentState {
   conflictResolutionPolicyProcedureBaseline: string;
   isConflictResolutionDirty: boolean;
 
-  initialNotification: DataModels.Notification;
   selectedTab: SettingsV2TabTypes;
 }
 
@@ -229,7 +228,6 @@ export class SettingsComponent extends React.Component<SettingsComponentProps, S
       conflictResolutionPolicyProcedureBaseline: undefined,
       isConflictResolutionDirty: false,
 
-      initialNotification: undefined,
       selectedTab: SettingsV2TabTypes.ScaleTab,
     };
 
@@ -1052,7 +1050,6 @@ export class SettingsComponent extends React.Component<SettingsComponentProps, S
       onMaxAutoPilotThroughputChange: this.onMaxAutoPilotThroughputChange,
       onScaleSaveableChange: this.onScaleSaveableChange,
       onScaleDiscardableChange: this.onScaleDiscardableChange,
-      initialNotification: this.props.settingsTab.pendingNotification(),
       throughputError: this.state.throughputError,
     };
 

src/Explorer/Controls/Settings/SettingsSubComponents/ScaleComponent.test.tsx

@@ -1,18 +1,10 @@
-import { shallow } from "enzyme";
-import ko from "knockout";
-import React from "react";
 import * as Constants from "../../../../Common/Constants";
-import * as DataModels from "../../../../Contracts/DataModels";
 import { updateUserContext } from "../../../../UserContext";
 import Explorer from "../../../Explorer";
-import { throughputUnit } from "../SettingsRenderUtils";
 import { collection } from "../TestUtils";
 import { ScaleComponent, ScaleComponentProps } from "./ScaleComponent";
-import { ThroughputInputAutoPilotV3Component } from "./ThroughputInputComponents/ThroughputInputAutoPilotV3Component";
 
 describe("ScaleComponent", () => {
-  const targetThroughput = 6000;
-
   const baseProps: ScaleComponentProps = {
     collection: collection,
     database: undefined,
@@ -36,39 +28,8 @@ describe("ScaleComponent", () => {
     onScaleDiscardableChange: () => {
       return;
     },
-    initialNotification: {
-      description: `Throughput update for ${targetThroughput} ${throughputUnit}`,
-    } as DataModels.Notification,
   };
 
-  it("renders with correct initial notification", () => {
-    let wrapper = shallow(<ScaleComponent {...baseProps} />);
-    expect(wrapper).toMatchSnapshot();
-    expect(wrapper.exists(ThroughputInputAutoPilotV3Component)).toEqual(true);
-    expect(wrapper.exists("#throughputApplyLongDelayMessage")).toEqual(true);
-    expect(wrapper.exists("#throughputApplyShortDelayMessage")).toEqual(false);
-    expect(wrapper.find("#throughputApplyLongDelayMessage").html()).toContain(`${targetThroughput}`);
-
-    const newCollection = { ...collection };
-    const maxThroughput = 5000;
-    newCollection.offer = ko.observable({
-      manualThroughput: undefined,
-      autoscaleMaxThroughput: maxThroughput,
-      minimumThroughput: 400,
-      id: "offer",
-      offerReplacePending: true,
-    });
-    const newProps = {
-      ...baseProps,
-      initialNotification: undefined as DataModels.Notification,
-      collection: newCollection,
-    };
-    wrapper = shallow(<ScaleComponent {...newProps} />);
-    expect(wrapper.exists("#throughputApplyShortDelayMessage")).toEqual(true);
-    expect(wrapper.exists("#throughputApplyLongDelayMessage")).toEqual(false);
-    expect(wrapper.find("#throughputApplyShortDelayMessage").html()).toContain(`${maxThroughput}`);
-  });
-
   it("autoScale disabled", () => {
     const scaleComponent = new ScaleComponent(baseProps);
     expect(scaleComponent.isAutoScaleEnabled()).toEqual(false);

src/Explorer/Controls/Settings/SettingsSubComponents/ScaleComponent.tsx

@@ -10,7 +10,6 @@ import * as AutoPilotUtils from "../../../../Utils/AutoPilotUtils";
 import { isRunningOnNationalCloud } from "../../../../Utils/CloudUtils";
 import {
   getTextFieldStyles,
-  getThroughputApplyLongDelayMessage,
   getThroughputApplyShortDelayMessage,
   subComponentStackProps,
   throughputUnit,
@@ -34,7 +33,6 @@ export interface ScaleComponentProps {
   onMaxAutoPilotThroughputChange: (newThroughput: number) => void;
   onScaleSaveableChange: (isScaleSaveable: boolean) => void;
   onScaleDiscardableChange: (isScaleDiscardable: boolean) => void;
-  initialNotification: DataModels.Notification;
   throughputError?: string;
 }
 
@@ -102,10 +100,6 @@ export class ScaleComponent extends React.Component<ScaleComponentProps> {
   };
 
   public getInitialNotificationElement = (): JSX.Element => {
-    if (this.props.initialNotification) {
-      return this.getLongDelayMessage();
-    }
-
     if (this.offer?.offerReplacePending) {
       const throughput = this.offer.manualThroughput || this.offer.autoscaleMaxThroughput;
       return getThroughputApplyShortDelayMessage(
@@ -120,26 +114,6 @@ export class ScaleComponent extends React.Component<ScaleComponentProps> {
     return undefined;
   };
 
-  public getLongDelayMessage = (): JSX.Element => {
-    const matches: string[] = this.props.initialNotification?.description.match(
-      `Throughput update for (.*) ${throughputUnit}`,
-    );
-
-    const throughput = this.props.throughputBaseline;
-    const targetThroughput: number = matches.length > 1 && Number(matches[1]);
-    if (targetThroughput) {
-      return getThroughputApplyLongDelayMessage(
-        this.props.wasAutopilotOriginallySet,
-        throughput,
-        throughputUnit,
-        this.databaseId,
-        this.collectionId,
-        targetThroughput,
-      );
-    }
-    return <></>;
-  };
-
   private getThroughputInputComponent = (): JSX.Element => (
     <ThroughputInputAutoPilotV3Component
       databaseAccount={userContext?.databaseAccount}

src/Explorer/Controls/Settings/SettingsSubComponents/__snapshots__/ScaleComponent.test.tsx.snap

@@ -1,64 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`ScaleComponent renders with correct initial notification 1`] = `
-<Stack
-  tokens={
-    {
-      "childrenGap": 20,
-    }
-  }
->
-  <StyledMessageBar
-    messageBarType={5}
-  >
-    <Text
-      id="throughputApplyLongDelayMessage"
-      styles={
-        {
-          "root": {
-            "color": "windowtext",
-            "fontSize": 14,
-          },
-        }
-      }
-    >
-      A request to increase the throughput is currently in progress. This operation will take 1-3 business days to complete. View the latest status in Notifications.
-      <br />
-      Database: test, Container: test 
-      , Current autoscale throughput: 100 - 1000 RU/s, Target autoscale throughput: 600 - 6000 RU/s
-    </Text>
-  </StyledMessageBar>
-  <Stack
-    tokens={
-      {
-        "childrenGap": 20,
-      }
-    }
-  >
-    <ThroughputInputAutoPilotV3Component
-      canExceedMaximumValue={true}
-      collectionName="test"
-      databaseName="test"
-      isAutoPilotSelected={false}
-      isEmulator={false}
-      isEnabled={true}
-      isFixed={false}
-      label="Throughput (6,000 - unlimited RU/s)"
-      maxAutoPilotThroughput={4000}
-      maxAutoPilotThroughputBaseline={4000}
-      maximum={1000000}
-      minimum={6000}
-      onAutoPilotSelected={[Function]}
-      onMaxAutoPilotThroughputChange={[Function]}
-      onScaleDiscardableChange={[Function]}
-      onScaleSaveableChange={[Function]}
-      onThroughputChange={[Function]}
-      spendAckChecked={false}
-      throughput={1000}
-      throughputBaseline={1000}
-      usageSizeInKB={100}
-      wasAutopilotOriginallySet={true}
-    />
-  </Stack>
-</Stack>
-`;

src/Explorer/Controls/Settings/SettingsUtils.test.tsx

@@ -44,7 +44,6 @@ describe("SettingsUtils", () => {
         readSettings: undefined,
         onSettingsClick: undefined,
         loadOffer: undefined,
-        getPendingThroughputSplitNotification: undefined,
       } as ViewModels.Database;
     };
     newCollection.offer(undefined);

src/Explorer/Controls/TreeComponent/Styles.ts

@@ -17,7 +17,7 @@ export const useTreeStyles = makeStyles({
     minWidth: "100%",
     rowGap: "0px",
     paddingTop: "0px",
-    [treeIconWidth]: "20px",
+    [treeIconWidth]: "16px",
     [leafNodeSpacing]: "24px",
   },
   nodeIcon: {
@@ -25,12 +25,13 @@ export const useTreeStyles = makeStyles({
     height: `var(${treeIconWidth})`,
   },
   treeItem: {},
-  nodeLabel: {},
+  nodeLabel: {
+    whiteSpace: "nowrap", // Don't wrap text, there will be a scrollbar.
+  },
   treeItemLayout: {
     fontSize: tokens.fontSizeBase300,
     height: tokens.layoutRowHeight,
     ...cosmosShorthands.borderBottom(),
-    paddingLeft: `calc(var(${treeItemLevelToken}, 1) * ${tokens.spacingHorizontalXXL})`,
 
     // Some sneaky CSS variables stuff to change the background color of the action button on hover.
     [actionButtonBackground]: tokens.colorNeutralBackground1,

src/Explorer/Controls/TreeComponent/TreeNodeComponent.tsx

@@ -107,7 +107,7 @@ export const TreeNodeComponent: React.FC<TreeNodeComponentProps> = ({
 
   const onOpenChange = useCallback(
     (_: TreeOpenChangeEvent, data: TreeOpenChangeData) => {
-      if (data.type === "Click" && !isBranch && node.onClick) {
+      if (data.type === "Click" && node.onClick) {
         node.onClick();
       }
       if (!node.isExpanded && data.open && node.onExpanded) {
@@ -119,7 +119,7 @@ export const TreeNodeComponent: React.FC<TreeNodeComponentProps> = ({
         node.onCollapsed?.();
       }
     },
-    [isBranch, node, setIsLoading],
+    [node, setIsLoading],
   );
 
   const onMenuOpenChange = useCallback(
@@ -149,18 +149,19 @@ export const TreeNodeComponent: React.FC<TreeNodeComponentProps> = ({
 
   // We use the expandIcon slot to hold the node icon too.
   // We only show a node icon for leaf nodes, even if a branch node has an iconSrc.
-  const expandIcon = isLoading ? (
-    <Spinner size="extra-tiny" />
-  ) : !isBranch ? (
-    typeof node.iconSrc === "string" ? (
+  const treeIcon =
+    node.iconSrc === undefined ? undefined : typeof node.iconSrc === "string" ? (
       <img src={node.iconSrc} className={treeStyles.nodeIcon} alt="" />
     ) : (
       node.iconSrc
-    )
-  ) : openItems.includes(treeNodeId) ? (
-    <ChevronDown20Regular />
+    );
+
+  const expandIcon = isLoading ? (
+    <Spinner size="extra-tiny" />
+  ) : !isBranch ? undefined : openItems.includes(treeNodeId) ? (
+    <ChevronDown20Regular data-test="TreeNode/CollapseIcon" />
   ) : (
-    <ChevronRight20Regular />
+    <ChevronRight20Regular data-text="TreeNode/ExpandIcon" />
   );
 
   const treeItem = (
@@ -174,7 +175,6 @@ export const TreeNodeComponent: React.FC<TreeNodeComponentProps> = ({
       <TreeItemLayout
         className={mergeClasses(
           treeStyles.treeItemLayout,
-          expandIcon ? undefined : treeStyles.treeItemLayoutNoIcon,
           shouldShowAsSelected && treeStyles.selectedItem,
           node.className && treeStyles[node.className],
         )}
@@ -200,12 +200,13 @@ export const TreeNodeComponent: React.FC<TreeNodeComponentProps> = ({
             ),
           }
         }
+        iconBefore={treeIcon}
         expandIcon={expandIcon}
       >
         <span className={treeStyles.nodeLabel}>{node.label}</span>
       </TreeItemLayout>
       {!node.isLoading && node.children?.length > 0 && (
-        <Tree className={treeStyles.tree}>
+        <Tree data-test={`Tree:${treeNodeId}`} className={treeStyles.tree}>
           {getSortedChildren(node).map((childNode: TreeNode) => (
             <TreeNodeComponent
               openItems={openItems}

src/Explorer/Controls/TreeComponent/__snapshots__/TreeNodeComponent.test.tsx.snap

@@ -10,12 +10,23 @@ exports[`TreeNodeComponent does not render children if the node is loading 1`] =
 >
   <TreeItemLayout
     actions={false}
-    className="___1kqyw53_iy2icj0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1do9gdl"
+    className="___z7owk70_14ep1pe fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
     data-test="TreeNode:root"
-    expandIcon={<ChevronRight20Regular />}
+    expandIcon={
+      <ChevronRight20Regular
+        data-text="TreeNode/ExpandIcon"
+      />
+    }
+    iconBefore={
+      <img
+        alt=""
+        className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+        src="rootIcon"
+      />
+    }
   >
     <span
-      className=""
+      className="___1h29e9h_0000000 fz5stix"
     >
       rootLabel
     </span>
@@ -133,6 +144,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                 <svg
                   aria-hidden="true"
                   class="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                  data-text="TreeNode/ExpandIcon"
                   fill="currentColor"
                   height="20"
                   viewBox="0 0 20 20"
@@ -151,7 +163,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
             "itemType": "branch",
             "layoutRef": {
               "current": <div
-                class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vtp8mg fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                class="fui-TreeItemLayout r1bx0xiv ___9uolwu0_9b0r4g0 fk6fouc fkhj508 figsok6 f1i3iumi fo100m9 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                 data-test="TreeNode:root"
               >
                 <div
@@ -161,6 +173,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                   <svg
                     aria-hidden="true"
                     class="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                    data-text="TreeNode/ExpandIcon"
                     fill="currentColor"
                     height="20"
                     viewBox="0 0 20 20"
@@ -173,11 +186,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                     />
                   </svg>
                 </div>
+                <div
+                  aria-hidden="true"
+                  class="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                >
+                  <img
+                    alt=""
+                    class="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                    src="rootIcon"
+                  />
+                </div>
                 <div
                   class="fui-TreeItemLayout__main rklbe47"
                 >
                   <span
-                    class=""
+                    class="___1h29e9h_0000000 fz5stix"
                   >
                     rootLabel
                   </span>
@@ -202,7 +225,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                 tabindex="-1"
               >
                 <div
-                  class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vtp8mg fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                  class="fui-TreeItemLayout r1bx0xiv ___9uolwu0_9b0r4g0 fk6fouc fkhj508 figsok6 f1i3iumi fo100m9 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                   data-test="TreeNode:root"
                 >
                   <div
@@ -212,6 +235,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                     <svg
                       aria-hidden="true"
                       class="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                      data-text="TreeNode/ExpandIcon"
                       fill="currentColor"
                       height="20"
                       viewBox="0 0 20 20"
@@ -224,18 +248,29 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                       />
                     </svg>
                   </div>
+                  <div
+                    aria-hidden="true"
+                    class="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                  >
+                    <img
+                      alt=""
+                      class="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                      src="rootIcon"
+                    />
+                  </div>
                   <div
                     class="fui-TreeItemLayout__main rklbe47"
                   >
                     <span
-                      class=""
+                      class="___1h29e9h_0000000 fz5stix"
                     >
                       rootLabel
                     </span>
                   </div>
                 </div>
                 <div
-                  class="fui-Tree rnv2ez3 ___jy13a00_lpffjy0 f1acs6jw f11qra4b fepn2xe f1nbblvp fhxm7u5 fzz4f4n"
+                  class="fui-Tree rnv2ez3 ___17a32do_7zrvj80 f1acs6jw f11qra4b fepn2xe f1nbblvp f19d5ny4 fzz4f4n"
+                  data-test="Tree:root"
                   role="tree"
                 >
                   <div
@@ -248,7 +283,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                     tabindex="0"
                   >
                     <div
-                      class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vtp8mg fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                      class="fui-TreeItemLayout r1bx0xiv ___9uolwu0_9b0r4g0 fk6fouc fkhj508 figsok6 f1i3iumi fo100m9 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                       data-test="TreeNode:root/child1Label"
                     >
                       <div
@@ -258,6 +293,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                         <svg
                           aria-hidden="true"
                           class="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                          data-text="TreeNode/ExpandIcon"
                           fill="currentColor"
                           height="20"
                           viewBox="0 0 20 20"
@@ -270,11 +306,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                           />
                         </svg>
                       </div>
+                      <div
+                        aria-hidden="true"
+                        class="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                      >
+                        <img
+                          alt=""
+                          class="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                          src="child1Icon"
+                        />
+                      </div>
                       <div
                         class="fui-TreeItemLayout__main rklbe47"
                       >
                         <span
-                          class=""
+                          class="___1h29e9h_0000000 fz5stix"
                         >
                           child1Label
                         </span>
@@ -291,7 +337,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                     tabindex="-1"
                   >
                     <div
-                      class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vtp8mg fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                      class="fui-TreeItemLayout r1bx0xiv ___9uolwu0_9b0r4g0 fk6fouc fkhj508 figsok6 f1i3iumi fo100m9 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                       data-test="TreeNode:root/child2LoadingLabel"
                     >
                       <div
@@ -301,6 +347,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                         <svg
                           aria-hidden="true"
                           class="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                          data-text="TreeNode/ExpandIcon"
                           fill="currentColor"
                           height="20"
                           viewBox="0 0 20 20"
@@ -313,11 +360,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                           />
                         </svg>
                       </div>
+                      <div
+                        aria-hidden="true"
+                        class="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                      >
+                        <img
+                          alt=""
+                          class="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                          src="child2LoadingIcon"
+                        />
+                      </div>
                       <div
                         class="fui-TreeItemLayout__main rklbe47"
                       >
                         <span
-                          class=""
+                          class="___1h29e9h_0000000 fz5stix"
                         >
                           child2LoadingLabel
                         </span>
@@ -333,7 +390,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                     tabindex="-1"
                   >
                     <div
-                      class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vrg09j fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                      class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_vz3p260 fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                       data-test="TreeNode:root/child3ExpandingLabel"
                     >
                       <div
@@ -353,11 +410,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                           </span>
                         </div>
                       </div>
+                      <div
+                        aria-hidden="true"
+                        class="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                      >
+                        <img
+                          alt=""
+                          class="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                          src="child3ExpandingIcon"
+                        />
+                      </div>
                       <div
                         class="fui-TreeItemLayout__main rklbe47"
                       >
                         <span
-                          class=""
+                          class="___1h29e9h_0000000 fz5stix"
                         >
                           child3ExpandingLabel
                         </span>
@@ -373,22 +440,36 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
       >
         <TreeItemLayout
           actions={false}
-          className="___1kqyw53_iy2icj0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1do9gdl"
+          className="___z7owk70_14ep1pe fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
           data-test="TreeNode:root"
-          expandIcon={<ChevronRight20Regular />}
+          expandIcon={
+            <ChevronRight20Regular
+              data-text="TreeNode/ExpandIcon"
+            />
+          }
+          iconBefore={
+            <img
+              alt=""
+              className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+              src="rootIcon"
+            />
+          }
         >
           <div
-            className="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vtp8mg fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+            className="fui-TreeItemLayout r1bx0xiv ___9uolwu0_9b0r4g0 fk6fouc fkhj508 figsok6 f1i3iumi fo100m9 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
             data-test="TreeNode:root"
           >
             <div
               aria-hidden={true}
               className="fui-TreeItemLayout__expandIcon rh4pu5o"
             >
-              <ChevronRight20Regular>
+              <ChevronRight20Regular
+                data-text="TreeNode/ExpandIcon"
+              >
                 <svg
                   aria-hidden={true}
                   className="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                  data-text="TreeNode/ExpandIcon"
                   fill="currentColor"
                   height="20"
                   viewBox="0 0 20 20"
@@ -402,11 +483,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                 </svg>
               </ChevronRight20Regular>
             </div>
+            <div
+              aria-hidden={true}
+              className="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+            >
+              <img
+                alt=""
+                className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                src="rootIcon"
+              />
+            </div>
             <div
               className="fui-TreeItemLayout__main rklbe47"
             >
               <span
-                className=""
+                className="___1h29e9h_0000000 fz5stix"
               >
                 rootLabel
               </span>
@@ -414,7 +505,8 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
           </div>
         </TreeItemLayout>
         <Tree
-          className="___jy13a00_0000000 f1acs6jw f11qra4b fepn2xe f1nbblvp fhxm7u5 fzz4f4n"
+          className="___17a32do_0000000 f1acs6jw f11qra4b fepn2xe f1nbblvp f19d5ny4 fzz4f4n"
+          data-test="Tree:root"
         >
           <TreeProvider
             value={
@@ -481,7 +573,8 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
               }
             >
               <div
-                className="fui-Tree rnv2ez3 ___jy13a00_lpffjy0 f1acs6jw f11qra4b fepn2xe f1nbblvp fhxm7u5 fzz4f4n"
+                className="fui-Tree rnv2ez3 ___17a32do_7zrvj80 f1acs6jw f11qra4b fepn2xe f1nbblvp f19d5ny4 fzz4f4n"
+                data-test="Tree:root"
                 role="tree"
               >
                 <TreeNodeComponent
@@ -549,6 +642,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                 <svg
                                   aria-hidden="true"
                                   class="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                                  data-text="TreeNode/ExpandIcon"
                                   fill="currentColor"
                                   height="20"
                                   viewBox="0 0 20 20"
@@ -567,7 +661,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                             "itemType": "branch",
                             "layoutRef": {
                               "current": <div
-                                class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vtp8mg fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                                class="fui-TreeItemLayout r1bx0xiv ___9uolwu0_9b0r4g0 fk6fouc fkhj508 figsok6 f1i3iumi fo100m9 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                                 data-test="TreeNode:root/child1Label"
                               >
                                 <div
@@ -577,6 +671,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                   <svg
                                     aria-hidden="true"
                                     class="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                                    data-text="TreeNode/ExpandIcon"
                                     fill="currentColor"
                                     height="20"
                                     viewBox="0 0 20 20"
@@ -589,11 +684,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                     />
                                   </svg>
                                 </div>
+                                <div
+                                  aria-hidden="true"
+                                  class="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                                >
+                                  <img
+                                    alt=""
+                                    class="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                                    src="child1Icon"
+                                  />
+                                </div>
                                 <div
                                   class="fui-TreeItemLayout__main rklbe47"
                                 >
                                   <span
-                                    class=""
+                                    class="___1h29e9h_0000000 fz5stix"
                                   >
                                     child1Label
                                   </span>
@@ -618,7 +723,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                 tabindex="0"
                               >
                                 <div
-                                  class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vtp8mg fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                                  class="fui-TreeItemLayout r1bx0xiv ___9uolwu0_9b0r4g0 fk6fouc fkhj508 figsok6 f1i3iumi fo100m9 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                                   data-test="TreeNode:root/child1Label"
                                 >
                                   <div
@@ -628,6 +733,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                     <svg
                                       aria-hidden="true"
                                       class="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                                      data-text="TreeNode/ExpandIcon"
                                       fill="currentColor"
                                       height="20"
                                       viewBox="0 0 20 20"
@@ -640,11 +746,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                       />
                                     </svg>
                                   </div>
+                                  <div
+                                    aria-hidden="true"
+                                    class="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                                  >
+                                    <img
+                                      alt=""
+                                      class="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                                      src="child1Icon"
+                                    />
+                                  </div>
                                   <div
                                     class="fui-TreeItemLayout__main rklbe47"
                                   >
                                     <span
-                                      class=""
+                                      class="___1h29e9h_0000000 fz5stix"
                                     >
                                       child1Label
                                     </span>
@@ -658,22 +774,36 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                       >
                         <TreeItemLayout
                           actions={false}
-                          className="___1kqyw53_iy2icj0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1do9gdl"
+                          className="___z7owk70_14ep1pe fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                           data-test="TreeNode:root/child1Label"
-                          expandIcon={<ChevronRight20Regular />}
+                          expandIcon={
+                            <ChevronRight20Regular
+                              data-text="TreeNode/ExpandIcon"
+                            />
+                          }
+                          iconBefore={
+                            <img
+                              alt=""
+                              className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                              src="child1Icon"
+                            />
+                          }
                         >
                           <div
-                            className="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vtp8mg fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                            className="fui-TreeItemLayout r1bx0xiv ___9uolwu0_9b0r4g0 fk6fouc fkhj508 figsok6 f1i3iumi fo100m9 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                             data-test="TreeNode:root/child1Label"
                           >
                             <div
                               aria-hidden={true}
                               className="fui-TreeItemLayout__expandIcon rh4pu5o"
                             >
-                              <ChevronRight20Regular>
+                              <ChevronRight20Regular
+                                data-text="TreeNode/ExpandIcon"
+                              >
                                 <svg
                                   aria-hidden={true}
                                   className="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                                  data-text="TreeNode/ExpandIcon"
                                   fill="currentColor"
                                   height="20"
                                   viewBox="0 0 20 20"
@@ -687,11 +817,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                 </svg>
                               </ChevronRight20Regular>
                             </div>
+                            <div
+                              aria-hidden={true}
+                              className="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                            >
+                              <img
+                                alt=""
+                                className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                                src="child1Icon"
+                              />
+                            </div>
                             <div
                               className="fui-TreeItemLayout__main rklbe47"
                             >
                               <span
-                                className=""
+                                className="___1h29e9h_0000000 fz5stix"
                               >
                                 child1Label
                               </span>
@@ -699,7 +839,8 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                           </div>
                         </TreeItemLayout>
                         <Tree
-                          className="___jy13a00_0000000 f1acs6jw f11qra4b fepn2xe f1nbblvp fhxm7u5 fzz4f4n"
+                          className="___17a32do_0000000 f1acs6jw f11qra4b fepn2xe f1nbblvp f19d5ny4 fzz4f4n"
+                          data-test="Tree:root/child1Label"
                         >
                           <TreeProvider
                             value={
@@ -772,6 +913,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                 <svg
                                   aria-hidden="true"
                                   class="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                                  data-text="TreeNode/ExpandIcon"
                                   fill="currentColor"
                                   height="20"
                                   viewBox="0 0 20 20"
@@ -790,7 +932,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                             "itemType": "branch",
                             "layoutRef": {
                               "current": <div
-                                class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vtp8mg fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                                class="fui-TreeItemLayout r1bx0xiv ___9uolwu0_9b0r4g0 fk6fouc fkhj508 figsok6 f1i3iumi fo100m9 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                                 data-test="TreeNode:root/child2LoadingLabel"
                               >
                                 <div
@@ -800,6 +942,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                   <svg
                                     aria-hidden="true"
                                     class="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                                    data-text="TreeNode/ExpandIcon"
                                     fill="currentColor"
                                     height="20"
                                     viewBox="0 0 20 20"
@@ -812,11 +955,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                     />
                                   </svg>
                                 </div>
+                                <div
+                                  aria-hidden="true"
+                                  class="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                                >
+                                  <img
+                                    alt=""
+                                    class="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                                    src="child2LoadingIcon"
+                                  />
+                                </div>
                                 <div
                                   class="fui-TreeItemLayout__main rklbe47"
                                 >
                                   <span
-                                    class=""
+                                    class="___1h29e9h_0000000 fz5stix"
                                   >
                                     child2LoadingLabel
                                   </span>
@@ -841,7 +994,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                 tabindex="-1"
                               >
                                 <div
-                                  class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vtp8mg fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                                  class="fui-TreeItemLayout r1bx0xiv ___9uolwu0_9b0r4g0 fk6fouc fkhj508 figsok6 f1i3iumi fo100m9 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                                   data-test="TreeNode:root/child2LoadingLabel"
                                 >
                                   <div
@@ -851,6 +1004,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                     <svg
                                       aria-hidden="true"
                                       class="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                                      data-text="TreeNode/ExpandIcon"
                                       fill="currentColor"
                                       height="20"
                                       viewBox="0 0 20 20"
@@ -863,11 +1017,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                       />
                                     </svg>
                                   </div>
+                                  <div
+                                    aria-hidden="true"
+                                    class="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                                  >
+                                    <img
+                                      alt=""
+                                      class="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                                      src="child2LoadingIcon"
+                                    />
+                                  </div>
                                   <div
                                     class="fui-TreeItemLayout__main rklbe47"
                                   >
                                     <span
-                                      class=""
+                                      class="___1h29e9h_0000000 fz5stix"
                                     >
                                       child2LoadingLabel
                                     </span>
@@ -881,22 +1045,36 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                       >
                         <TreeItemLayout
                           actions={false}
-                          className="___1kqyw53_iy2icj0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1do9gdl"
+                          className="___z7owk70_14ep1pe fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                           data-test="TreeNode:root/child2LoadingLabel"
-                          expandIcon={<ChevronRight20Regular />}
+                          expandIcon={
+                            <ChevronRight20Regular
+                              data-text="TreeNode/ExpandIcon"
+                            />
+                          }
+                          iconBefore={
+                            <img
+                              alt=""
+                              className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                              src="child2LoadingIcon"
+                            />
+                          }
                         >
                           <div
-                            className="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vtp8mg fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                            className="fui-TreeItemLayout r1bx0xiv ___9uolwu0_9b0r4g0 fk6fouc fkhj508 figsok6 f1i3iumi fo100m9 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                             data-test="TreeNode:root/child2LoadingLabel"
                           >
                             <div
                               aria-hidden={true}
                               className="fui-TreeItemLayout__expandIcon rh4pu5o"
                             >
-                              <ChevronRight20Regular>
+                              <ChevronRight20Regular
+                                data-text="TreeNode/ExpandIcon"
+                              >
                                 <svg
                                   aria-hidden={true}
                                   className="___12fm75w_v8ls9a0 f1w7gpdv fez10in fg4l7m0"
+                                  data-text="TreeNode/ExpandIcon"
                                   fill="currentColor"
                                   height="20"
                                   viewBox="0 0 20 20"
@@ -910,11 +1088,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                 </svg>
                               </ChevronRight20Regular>
                             </div>
+                            <div
+                              aria-hidden={true}
+                              className="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                            >
+                              <img
+                                alt=""
+                                className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                                src="child2LoadingIcon"
+                              />
+                            </div>
                             <div
                               className="fui-TreeItemLayout__main rklbe47"
                             >
                               <span
-                                className=""
+                                className="___1h29e9h_0000000 fz5stix"
                               >
                                 child2LoadingLabel
                               </span>
@@ -999,7 +1187,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                             "itemType": "leaf",
                             "layoutRef": {
                               "current": <div
-                                class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vrg09j fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                                class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_vz3p260 fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                                 data-test="TreeNode:root/child3ExpandingLabel"
                               >
                                 <div
@@ -1019,11 +1207,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                     </span>
                                   </div>
                                 </div>
+                                <div
+                                  aria-hidden="true"
+                                  class="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                                >
+                                  <img
+                                    alt=""
+                                    class="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                                    src="child3ExpandingIcon"
+                                  />
+                                </div>
                                 <div
                                   class="fui-TreeItemLayout__main rklbe47"
                                 >
                                   <span
-                                    class=""
+                                    class="___1h29e9h_0000000 fz5stix"
                                   >
                                     child3ExpandingLabel
                                   </span>
@@ -1047,7 +1245,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                 tabindex="-1"
                               >
                                 <div
-                                  class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vrg09j fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                                  class="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_vz3p260 fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                                   data-test="TreeNode:root/child3ExpandingLabel"
                                 >
                                   <div
@@ -1067,11 +1265,21 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                                       </span>
                                     </div>
                                   </div>
+                                  <div
+                                    aria-hidden="true"
+                                    class="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
+                                  >
+                                    <img
+                                      alt=""
+                                      class="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+                                      src="child3ExpandingIcon"
+                                    />
+                                  </div>
                                   <div
                                     class="fui-TreeItemLayout__main rklbe47"
                                   >
                                     <span
-                                      class=""
+                                      class="___1h29e9h_0000000 fz5stix"
                                     >
                                       child3ExpandingLabel
                                     </span>
@@ -1085,9 +1293,9 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                       >
                         <TreeItemLayout
                           actions={false}
-                          className="___1kqyw53_iy2icj0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1do9gdl"
+                          className="___z7owk70_14ep1pe fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                           data-test="TreeNode:root/child3ExpandingLabel"
-                          expandIcon={
+                          iconBefore={
                             <img
                               alt=""
                               className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
@@ -1096,12 +1304,12 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                           }
                         >
                           <div
-                            className="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_1vrg09j fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
+                            className="fui-TreeItemLayout r1bx0xiv ___dxcrnh0_vz3p260 fk6fouc fkhj508 figsok6 f1i3iumi f1k1erfc fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
                             data-test="TreeNode:root/child3ExpandingLabel"
                           >
                             <div
                               aria-hidden={true}
-                              className="fui-TreeItemLayout__expandIcon rh4pu5o"
+                              className="fui-TreeItemLayout__iconBefore rphzgg1 ___1lqnc2u_1hdcey2 f7x41pl"
                             >
                               <img
                                 alt=""
@@ -1113,7 +1321,7 @@ exports[`TreeNodeComponent fully renders a tree 1`] = `
                               className="fui-TreeItemLayout__main rklbe47"
                             >
                               <span
-                                className=""
+                                className="___1h29e9h_0000000 fz5stix"
                               >
                                 child3ExpandingLabel
                               </span>
@@ -1144,9 +1352,9 @@ exports[`TreeNodeComponent renders a loading spinner if the node is loading: loa
 >
   <TreeItemLayout
     actions={false}
-    className="___1kqyw53_iy2icj0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1do9gdl"
+    className="___z7owk70_14ep1pe fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
     data-test="TreeNode:root"
-    expandIcon={
+    iconBefore={
       <img
         alt=""
         className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
@@ -1155,7 +1363,7 @@ exports[`TreeNodeComponent renders a loading spinner if the node is loading: loa
     }
   >
     <span
-      className=""
+      className="___1h29e9h_0000000 fz5stix"
     >
       rootLabel
     </span>
@@ -1173,16 +1381,23 @@ exports[`TreeNodeComponent renders a loading spinner if the node is loading: loa
 >
   <TreeItemLayout
     actions={false}
-    className="___1kqyw53_iy2icj0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1do9gdl"
+    className="___z7owk70_14ep1pe fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
     data-test="TreeNode:root"
     expandIcon={
       <Spinner
         size="extra-tiny"
       />
     }
+    iconBefore={
+      <img
+        alt=""
+        className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+        src="rootIcon"
+      />
+    }
   >
     <span
-      className=""
+      className="___1h29e9h_0000000 fz5stix"
     >
       rootLabel
     </span>
@@ -1200,12 +1415,23 @@ exports[`TreeNodeComponent renders a node as expandable if it has empty, but def
 >
   <TreeItemLayout
     actions={false}
-    className="___1kqyw53_iy2icj0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1do9gdl"
+    className="___z7owk70_14ep1pe fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
     data-test="TreeNode:root"
-    expandIcon={<ChevronRight20Regular />}
+    expandIcon={
+      <ChevronRight20Regular
+        data-text="TreeNode/ExpandIcon"
+      />
+    }
+    iconBefore={
+      <img
+        alt=""
+        className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+        src="rootIcon"
+      />
+    }
   >
     <span
-      className=""
+      className="___1h29e9h_0000000 fz5stix"
     >
       rootLabel
     </span>
@@ -1269,9 +1495,9 @@ exports[`TreeNodeComponent renders a node with a menu 1`] = `
             "className": "___1r8p62d_0000000 f1xg1ack f1e31b4d",
           }
         }
-        className="___1kqyw53_iy2icj0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1do9gdl"
+        className="___z7owk70_14ep1pe fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
         data-test="TreeNode:root"
-        expandIcon={
+        iconBefore={
           <img
             alt=""
             className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
@@ -1280,7 +1506,7 @@ exports[`TreeNodeComponent renders a node with a menu 1`] = `
         }
       >
         <span
-          className=""
+          className="___1h29e9h_0000000 fz5stix"
         >
           rootLabel
         </span>
@@ -1319,9 +1545,9 @@ exports[`TreeNodeComponent renders a single node 1`] = `
 >
   <TreeItemLayout
     actions={false}
-    className="___1kqyw53_iy2icj0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1do9gdl"
+    className="___z7owk70_14ep1pe fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
     data-test="TreeNode:root"
-    expandIcon={
+    iconBefore={
       <img
         alt=""
         className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
@@ -1330,7 +1556,7 @@ exports[`TreeNodeComponent renders a single node 1`] = `
     }
   >
     <span
-      className=""
+      className="___1h29e9h_0000000 fz5stix"
     >
       rootLabel
     </span>
@@ -1348,9 +1574,9 @@ exports[`TreeNodeComponent renders an icon if the node has one 1`] = `
 >
   <TreeItemLayout
     actions={false}
-    className="___1kqyw53_iy2icj0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1do9gdl"
+    className="___z7owk70_14ep1pe fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
     data-test="TreeNode:root"
-    expandIcon={
+    iconBefore={
       <img
         alt=""
         className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
@@ -1359,7 +1585,7 @@ exports[`TreeNodeComponent renders an icon if the node has one 1`] = `
     }
   >
     <span
-      className=""
+      className="___1h29e9h_0000000 fz5stix"
     >
       rootLabel
     </span>
@@ -1377,18 +1603,30 @@ exports[`TreeNodeComponent renders selected parent node as selected if no descen
 >
   <TreeItemLayout
     actions={false}
-    className="___kqkdor0_ihxn0o0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1nfm20t f1do9gdl"
+    className="___rq9vxg0_1ykn2d2 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1nfm20t f1do9gdl"
     data-test="TreeNode:root"
-    expandIcon={<ChevronRight20Regular />}
+    expandIcon={
+      <ChevronRight20Regular
+        data-text="TreeNode/ExpandIcon"
+      />
+    }
+    iconBefore={
+      <img
+        alt=""
+        className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+        src="rootIcon"
+      />
+    }
   >
     <span
-      className=""
+      className="___1h29e9h_0000000 fz5stix"
     >
       rootLabel
     </span>
   </TreeItemLayout>
   <Tree
-    className="___jy13a00_0000000 f1acs6jw f11qra4b fepn2xe f1nbblvp fhxm7u5 fzz4f4n"
+    className="___17a32do_0000000 f1acs6jw f11qra4b fepn2xe f1nbblvp f19d5ny4 fzz4f4n"
+    data-test="Tree:root"
   >
     <TreeNodeComponent
       key="child1Label"
@@ -1448,18 +1686,30 @@ exports[`TreeNodeComponent renders selected parent node as unselected if any des
 >
   <TreeItemLayout
     actions={false}
-    className="___1kqyw53_iy2icj0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1do9gdl"
+    className="___z7owk70_14ep1pe fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1do9gdl"
     data-test="TreeNode:root"
-    expandIcon={<ChevronRight20Regular />}
+    expandIcon={
+      <ChevronRight20Regular
+        data-text="TreeNode/ExpandIcon"
+      />
+    }
+    iconBefore={
+      <img
+        alt=""
+        className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
+        src="rootIcon"
+      />
+    }
   >
     <span
-      className=""
+      className="___1h29e9h_0000000 fz5stix"
     >
       rootLabel
     </span>
   </TreeItemLayout>
   <Tree
-    className="___jy13a00_0000000 f1acs6jw f11qra4b fepn2xe f1nbblvp fhxm7u5 fzz4f4n"
+    className="___17a32do_0000000 f1acs6jw f11qra4b fepn2xe f1nbblvp f19d5ny4 fzz4f4n"
+    data-test="Tree:root"
   >
     <TreeNodeComponent
       key="child1Label"
@@ -1520,9 +1770,9 @@ exports[`TreeNodeComponent renders single selected leaf node as selected 1`] = `
 >
   <TreeItemLayout
     actions={false}
-    className="___kqkdor0_ihxn0o0 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1k1erfc f1n8cmsf f1ktbui8 f1nfm20t f1do9gdl"
+    className="___rq9vxg0_1ykn2d2 fkhj508 fbv8p0b f1f09k3d fg706s2 frpde29 f1n8cmsf f1ktbui8 f1nfm20t f1do9gdl"
     data-test="TreeNode:root"
-    expandIcon={
+    iconBefore={
       <img
         alt=""
         className="___i3nbrx0_0000000 f1do9gdl fbv8p0b"
@@ -1531,7 +1781,7 @@ exports[`TreeNodeComponent renders single selected leaf node as selected 1`] = `
     }
   >
     <span
-      className=""
+      className="___1h29e9h_0000000 fz5stix"
     >
       rootLabel
     </span>

src/Explorer/Explorer.tsx

@@ -1,9 +1,11 @@
 import * as msal from "@azure/msal-browser";
 import { Link } from "@fluentui/react/lib/Link";
 import { isPublicInternetAccessAllowed } from "Common/DatabaseAccountUtility";
+import { Environment, getEnvironment } from "Common/EnvironmentUtility";
 import { sendMessage } from "Common/MessageHandler";
 import { Platform, configContext } from "ConfigContext";
 import { MessageTypes } from "Contracts/ExplorerContracts";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import { useDataPlaneRbac } from "Explorer/Panes/SettingsPane/SettingsPane";
 import { getCopilotEnabled, isCopilotFeatureRegistered } from "Explorer/QueryCopilot/Shared/QueryCopilotClient";
 import { IGalleryItem } from "Juno/JunoClient";
@@ -46,7 +48,6 @@ import { useTabs } from "../hooks/useTabs";
 import "./ComponentRegisterer";
 import { DialogProps, useDialog } from "./Controls/Dialog";
 import { GalleryTab as GalleryTabKind } from "./Controls/NotebookGallery/GalleryViewerComponent";
-import { useCommandBar } from "./Menus/CommandBar/CommandBarComponentAdapter";
 import * as FileSystemUtil from "./Notebook/FileSystemUtil";
 import { SnapshotRequest } from "./Notebook/NotebookComponent/types";
 import { NotebookContentItem, NotebookContentItemType } from "./Notebook/NotebookContentItem";
@@ -1119,7 +1120,7 @@ export default class Explorer {
     }
   }
 
-  public openUploadItemsPanePane(): void {
+  public openUploadItemsPane(): void {
     useSidePanel.getState().openSidePanel("Upload " + getUploadName(), <UploadItemsPane />);
   }
   public openExecuteSprocParamsPanel(storedProcedure: StoredProcedure): void {
@@ -1178,7 +1179,11 @@ export default class Explorer {
   }
 
   public async configureCopilot(): Promise<void> {
-    if (userContext.apiType !== "SQL" || !userContext.subscriptionId) {
+    if (
+      userContext.apiType !== "SQL" ||
+      !userContext.subscriptionId ||
+      ![Environment.Development, Environment.Mpac, Environment.Prod].includes(getEnvironment())
+    ) {
       return;
     }
     const copilotEnabledPromise = getCopilotEnabled();

src/Explorer/Menus/CommandBar/CommandBarComponentAdapter.tsx

@@ -4,83 +4,51 @@
  * and update any knockout observables passed from the parent.
  */
 import { CommandBar as FluentCommandBar, ICommandBarItemProps } from "@fluentui/react";
+import {
+  createPlatformButtons,
+  createStaticCommandBarButtons,
+} from "Explorer/Menus/CommandBar/CommandBarComponentButtonFactory";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import { useNotebook } from "Explorer/Notebook/useNotebook";
 import { KeyboardActionGroup, useKeyboardActionGroup } from "KeyboardShortcuts";
-import { userContext } from "UserContext";
 import * as React from "react";
-import create, { UseStore } from "zustand";
 import { ConnectionStatusType, PoolIdType } from "../../../Common/Constants";
 import { StyleConstants } from "../../../Common/StyleConstants";
 import { Platform, configContext } from "../../../ConfigContext";
-import { CommandButtonComponentProps } from "../../Controls/CommandButton/CommandButtonComponent";
 import Explorer from "../../Explorer";
 import { useSelectedNode } from "../../useSelectedNode";
-import * as CommandBarComponentButtonFactory from "./CommandBarComponentButtonFactory";
 import * as CommandBarUtil from "./CommandBarUtil";
 
 interface Props {
   container: Explorer;
 }
 
-export interface CommandBarStore {
-  contextButtons: CommandButtonComponentProps[];
-  setContextButtons: (contextButtons: CommandButtonComponentProps[]) => void;
-  isHidden: boolean;
-  setIsHidden: (isHidden: boolean) => void;
-}
-
-export const useCommandBar: UseStore<CommandBarStore> = create((set) => ({
-  contextButtons: [],
-  setContextButtons: (contextButtons: CommandButtonComponentProps[]) => set((state) => ({ ...state, contextButtons })),
-  isHidden: false,
-  setIsHidden: (isHidden: boolean) => set((state) => ({ ...state, isHidden })),
-}));
-
 export const CommandBar: React.FC<Props> = ({ container }: Props) => {
   const selectedNodeState = useSelectedNode();
-  const buttons = useCommandBar((state) => state.contextButtons);
+  const contextButtons = useCommandBar((state) => state.contextButtons);
   const isHidden = useCommandBar((state) => state.isHidden);
   const backgroundColor = StyleConstants.BaseLight;
   const setKeyboardHandlers = useKeyboardActionGroup(KeyboardActionGroup.COMMAND_BAR);
+  const staticButtons = createStaticCommandBarButtons(selectedNodeState);
+  const platformButtons = createPlatformButtons();
 
-  if (userContext.apiType === "Postgres" || userContext.apiType === "VCoreMongo") {
-    const buttons =
-      userContext.apiType === "Postgres"
-        ? CommandBarComponentButtonFactory.createPostgreButtons(container)
-        : CommandBarComponentButtonFactory.createVCoreMongoButtons(container);
-    return (
-      <div className="commandBarContainer" style={{ display: isHidden ? "none" : "initial" }}>
-        <FluentCommandBar
-          ariaLabel="Use left and right arrow keys to navigate between commands"
-          items={CommandBarUtil.convertButton(buttons, backgroundColor)}
-          styles={{
-            root: { backgroundColor: backgroundColor },
-          }}
-          overflowButtonProps={{ ariaLabel: "More commands" }}
-        />
-      </div>
-    );
-  }
-
-  const staticButtons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(container, selectedNodeState);
-  const contextButtons = (buttons || []).concat(
-    CommandBarComponentButtonFactory.createContextCommandBarButtons(container, selectedNodeState),
-  );
-  const controlButtons = CommandBarComponentButtonFactory.createControlCommandBarButtons(container);
-
-  const uiFabricStaticButtons = CommandBarUtil.convertButton(staticButtons, backgroundColor);
-  if (buttons && buttons.length > 0) {
+  const uiFabricStaticButtons = CommandBarUtil.convertButton(staticButtons, backgroundColor, container);
+  if (contextButtons?.length > 0) {
     uiFabricStaticButtons.forEach((btn: ICommandBarItemProps) => (btn.iconOnly = true));
   }
 
-  const uiFabricTabsButtons: ICommandBarItemProps[] = CommandBarUtil.convertButton(contextButtons, backgroundColor);
+  const uiFabricTabsButtons: ICommandBarItemProps[] = CommandBarUtil.convertButton(
+    contextButtons || [],
+    backgroundColor,
+    container,
+  );
 
   if (uiFabricTabsButtons.length > 0) {
     uiFabricStaticButtons.push(CommandBarUtil.createDivider("commandBarDivider"));
   }
 
-  const uiFabricControlButtons = CommandBarUtil.convertButton(controlButtons, backgroundColor);
-  uiFabricControlButtons.forEach((btn: ICommandBarItemProps) => (btn.iconOnly = true));
+  const uiFabricPlatformButtons = CommandBarUtil.convertButton(platformButtons || [], backgroundColor, container);
+  uiFabricPlatformButtons.forEach((btn: ICommandBarItemProps) => (btn.iconOnly = true));
 
   const connectionInfo = useNotebook((state) => state.connectionInfo);
 
@@ -88,7 +56,7 @@ export const CommandBar: React.FC<Props> = ({ container }: Props) => {
     (useNotebook.getState().isPhoenixNotebooks || useNotebook.getState().isPhoenixFeatures) &&
     connectionInfo?.status !== ConnectionStatusType.Connect
   ) {
-    uiFabricControlButtons.unshift(
+    uiFabricPlatformButtons.unshift(
       CommandBarUtil.createConnectionStatus(container, PoolIdType.DefaultPoolId, "connectionStatus"),
     );
   }
@@ -107,8 +75,8 @@ export const CommandBar: React.FC<Props> = ({ container }: Props) => {
           },
         };
 
-  const allButtons = staticButtons.concat(contextButtons).concat(controlButtons);
-  const keyboardHandlers = CommandBarUtil.createKeyboardHandlers(allButtons);
+  const allButtons = staticButtons.concat(contextButtons).concat(platformButtons);
+  const keyboardHandlers = CommandBarUtil.createKeyboardHandlers(allButtons, container);
   setKeyboardHandlers(keyboardHandlers);
 
   return (
@@ -116,7 +84,7 @@ export const CommandBar: React.FC<Props> = ({ container }: Props) => {
       <FluentCommandBar
         ariaLabel="Use left and right arrow keys to navigate between commands"
         items={uiFabricStaticButtons.concat(uiFabricTabsButtons)}
-        farItems={uiFabricControlButtons}
+        farItems={uiFabricPlatformButtons}
         styles={rootStyle}
         overflowButtonProps={{ ariaLabel: "More commands" }}
       />

src/Explorer/Menus/CommandBar/CommandBarComponentButtonFactory.test.ts

@@ -3,15 +3,12 @@ import { AuthType } from "../../../AuthType";
 import { DatabaseAccount } from "../../../Contracts/DataModels";
 import { CollectionBase } from "../../../Contracts/ViewModels";
 import { updateUserContext } from "../../../UserContext";
-import Explorer from "../../Explorer";
 import { useNotebook } from "../../Notebook/useNotebook";
 import { useDatabases } from "../../useDatabases";
 import { useSelectedNode } from "../../useSelectedNode";
 import * as CommandBarComponentButtonFactory from "./CommandBarComponentButtonFactory";
 
 describe("CommandBarComponentButtonFactory tests", () => {
-  let mockExplorer: Explorer;
-
   afterEach(() => useSelectedNode.getState().setSelectedNode(undefined));
 
   describe("Enable Azure Synapse Link Button", () => {
@@ -19,7 +16,6 @@ describe("CommandBarComponentButtonFactory tests", () => {
     const selectedNodeState = useSelectedNode.getState();
 
     beforeAll(() => {
-      mockExplorer = {} as Explorer;
       updateUserContext({
         databaseAccount: {
           properties: {
@@ -30,7 +26,7 @@ describe("CommandBarComponentButtonFactory tests", () => {
     });
 
     it("Button should be visible", () => {
-      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(mockExplorer, selectedNodeState);
+      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(selectedNodeState);
       const enableAzureSynapseLinkBtn = buttons.find(
         (button) => button.commandButtonLabel === enableAzureSynapseLinkBtnLabel,
       );
@@ -46,7 +42,7 @@ describe("CommandBarComponentButtonFactory tests", () => {
         } as DatabaseAccount,
       });
 
-      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(mockExplorer, selectedNodeState);
+      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(selectedNodeState);
       const enableAzureSynapseLinkBtn = buttons.find(
         (button) => button.commandButtonLabel === enableAzureSynapseLinkBtnLabel,
       );
@@ -62,7 +58,7 @@ describe("CommandBarComponentButtonFactory tests", () => {
         } as DatabaseAccount,
       });
 
-      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(mockExplorer, selectedNodeState);
+      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(selectedNodeState);
       const enableAzureSynapseLinkBtn = buttons.find(
         (button) => button.commandButtonLabel === enableAzureSynapseLinkBtnLabel,
       );
@@ -75,7 +71,6 @@ describe("CommandBarComponentButtonFactory tests", () => {
     const selectedNodeState = useSelectedNode.getState();
 
     beforeAll(() => {
-      mockExplorer = {} as Explorer;
       updateUserContext({
         databaseAccount: {
           properties: {
@@ -108,7 +103,7 @@ describe("CommandBarComponentButtonFactory tests", () => {
           },
         } as DatabaseAccount,
       });
-      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(mockExplorer, selectedNodeState);
+      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(selectedNodeState);
       const openCassandraShellBtn = buttons.find((button) => button.commandButtonLabel === openCassandraShellBtnLabel);
       expect(openCassandraShellBtn).toBeUndefined();
     });
@@ -118,13 +113,13 @@ describe("CommandBarComponentButtonFactory tests", () => {
         portalEnv: "mooncake",
       });
 
-      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(mockExplorer, selectedNodeState);
+      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(selectedNodeState);
       const openCassandraShellBtn = buttons.find((button) => button.commandButtonLabel === openCassandraShellBtnLabel);
       expect(openCassandraShellBtn).toBeUndefined();
     });
 
     it("Notebooks is not enabled and is unavailable - button should be shown and disabled", () => {
-      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(mockExplorer, selectedNodeState);
+      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(selectedNodeState);
       const openCassandraShellBtn = buttons.find((button) => button.commandButtonLabel === openCassandraShellBtnLabel);
       expect(openCassandraShellBtn).toBeUndefined();
     });
@@ -134,12 +129,8 @@ describe("CommandBarComponentButtonFactory tests", () => {
     const openPostgresShellButtonLabel = "Open PSQL shell";
     const openVCoreMongoShellButtonLabel = "Open MongoDB (vCore) shell";
 
-    beforeAll(() => {
-      mockExplorer = {} as Explorer;
-    });
-
     it("creates Postgres shell button", () => {
-      const buttons = CommandBarComponentButtonFactory.createPostgreButtons(mockExplorer);
+      const buttons = CommandBarComponentButtonFactory.createPostgreButtons();
       const openPostgresShellButton = buttons.find(
         (button) => button.commandButtonLabel === openPostgresShellButtonLabel,
       );
@@ -147,7 +138,7 @@ describe("CommandBarComponentButtonFactory tests", () => {
     });
 
     it("creates vCore Mongo shell button", () => {
-      const buttons = CommandBarComponentButtonFactory.createVCoreMongoButtons(mockExplorer);
+      const buttons = CommandBarComponentButtonFactory.createVCoreMongoButtons();
       const openVCoreMongoShellButton = buttons.find(
         (button) => button.commandButtonLabel === openVCoreMongoShellButtonLabel,
       );
@@ -162,8 +153,6 @@ describe("CommandBarComponentButtonFactory tests", () => {
     const selectedNodeState = useSelectedNode.getState();
 
     beforeAll(() => {
-      mockExplorer = {} as Explorer;
-
       updateUserContext({
         authType: AuthType.ResourceToken,
       });
@@ -175,7 +164,7 @@ describe("CommandBarComponentButtonFactory tests", () => {
           kind: "DocumentDB",
         } as DatabaseAccount,
       });
-      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(mockExplorer, selectedNodeState);
+      const buttons = CommandBarComponentButtonFactory.createStaticCommandBarButtons(selectedNodeState);
       expect(buttons.length).toBe(2);
       expect(buttons[0].commandButtonLabel).toBe("New SQL Query");
       expect(buttons[0].disabled).toBe(false);

src/Explorer/Menus/CommandBar/CommandBarComponentButtonFactory.tsx

@@ -21,7 +21,6 @@ import { userContext } from "../../../UserContext";
 import { isRunningOnNationalCloud } from "../../../Utils/CloudUtils";
 import { useSidePanel } from "../../../hooks/useSidePanel";
 import { CommandButtonComponentProps } from "../../Controls/CommandButton/CommandButtonComponent";
-import Explorer from "../../Explorer";
 import { useNotebook } from "../../Notebook/useNotebook";
 import { OpenFullScreen } from "../../OpenFullScreen";
 import { BrowseQueriesPane } from "../../Panes/BrowseQueriesPane/BrowseQueriesPane";
@@ -32,19 +31,20 @@ import { SelectedNodeState, useSelectedNode } from "../../useSelectedNode";
 
 let counter = 0;
 
-export function createStaticCommandBarButtons(
-  container: Explorer,
-  selectedNodeState: SelectedNodeState,
-): CommandButtonComponentProps[] {
+export function createStaticCommandBarButtons(selectedNodeState: SelectedNodeState): CommandButtonComponentProps[] {
+  if (userContext.apiType === "Postgres" || userContext.apiType === "VCoreMongo") {
+    return userContext.apiType === "Postgres" ? createPostgreButtons() : createVCoreMongoButtons();
+  }
+
   if (userContext.authType === AuthType.ResourceToken) {
-    return createStaticCommandBarButtonsForResourceToken(container, selectedNodeState);
+    return createStaticCommandBarButtonsForResourceToken(selectedNodeState);
   }
 
   const buttons: CommandButtonComponentProps[] = [];
 
   // Avoid starting with a divider
   const addDivider = () => {
-    if (buttons.length > 0) {
+    if (buttons.length > 0 && !buttons[buttons.length - 1].isDivider) {
       buttons.push(createDivider());
     }
   };
@@ -54,7 +54,7 @@ export function createStaticCommandBarButtons(
     userContext.apiType !== "Tables" &&
     userContext.apiType !== "Cassandra"
   ) {
-    const addSynapseLink = createOpenSynapseLinkDialogButton(container);
+    const addSynapseLink = createOpenSynapseLinkDialogButton();
     if (addSynapseLink) {
       addDivider();
       buttons.push(addSynapseLink);
@@ -67,9 +67,9 @@ export function createStaticCommandBarButtons(
     const aadTokenUpdated = useDataPlaneRbac((state) => state.aadTokenUpdated);
 
     useEffect(() => {
-      const buttonProps = createLoginForEntraIDButton(container);
+      const buttonProps = createLoginForEntraIDButton();
       setLoginButtonProps(buttonProps);
-    }, [dataPlaneRbacEnabled, aadTokenUpdated, container]);
+    }, [dataPlaneRbacEnabled, aadTokenUpdated]);
 
     if (loginButtonProps) {
       addDivider();
@@ -87,8 +87,8 @@ export function createStaticCommandBarButtons(
     }
 
     if (isQuerySupported && selectedNodeState.findSelectedCollection() && configContext.platform !== Platform.Fabric) {
-      const openQueryBtn = createOpenQueryButton(container);
-      openQueryBtn.children = [createOpenQueryButton(container), createOpenQueryFromDiskButton()];
+      const openQueryBtn = createOpenQueryButton();
+      openQueryBtn.children = [createOpenQueryButton(), createOpenQueryFromDiskButton()];
       buttons.push(openQueryBtn);
     }
 
@@ -103,6 +103,7 @@ export function createStaticCommandBarButtons(
           selectedCollection && selectedCollection.onNewStoredProcedureClick(selectedCollection);
         },
         commandButtonLabel: label,
+        tooltipText: userContext.features.commandBarV2 ? "New..." : label,
         ariaLabel: label,
         hasPopup: true,
         disabled:
@@ -115,21 +116,12 @@ export function createStaticCommandBarButtons(
     }
   }
 
-  return buttons;
-}
-
-export function createContextCommandBarButtons(
-  container: Explorer,
-  selectedNodeState: SelectedNodeState,
-): CommandButtonComponentProps[] {
-  const buttons: CommandButtonComponentProps[] = [];
-
   if (!selectedNodeState.isDatabaseNodeOrNoneSelected() && userContext.apiType === "Mongo") {
     const label = useNotebook.getState().isShellEnabled ? "Open Mongo Shell" : "New Shell";
     const newMongoShellBtn: CommandButtonComponentProps = {
       iconSrc: HostedTerminalIcon,
       iconAlt: label,
-      onCommandClick: () => {
+      onCommandClick: (_, container) => {
         const selectedCollection: ViewModels.Collection = selectedNodeState.findSelectedCollection();
         if (useNotebook.getState().isShellEnabled) {
           container.openNotebookTerminal(ViewModels.TerminalKind.Mongo);
@@ -141,6 +133,7 @@ export function createContextCommandBarButtons(
       ariaLabel: label,
       hasPopup: true,
     };
+    addDivider();
     buttons.push(newMongoShellBtn);
   }
 
@@ -153,28 +146,26 @@ export function createContextCommandBarButtons(
     const newCassandraShellButton: CommandButtonComponentProps = {
       iconSrc: HostedTerminalIcon,
       iconAlt: label,
-      onCommandClick: () => {
+      onCommandClick: (_, container) => {
         container.openNotebookTerminal(ViewModels.TerminalKind.Cassandra);
       },
       commandButtonLabel: label,
       ariaLabel: label,
       hasPopup: true,
     };
+    addDivider();
     buttons.push(newCassandraShellButton);
   }
 
   return buttons;
 }
 
-export function createControlCommandBarButtons(container: Explorer): CommandButtonComponentProps[] {
-  const buttons: CommandButtonComponentProps[] =
-    configContext.platform === Platform.Fabric && userContext.fabricContext?.isReadOnly
-      ? []
-      : [
+export function createPlatformButtons(): CommandButtonComponentProps[] {
+  const buttons: CommandButtonComponentProps[] = [
     {
       iconSrc: SettingsIcon,
       iconAlt: "Settings",
-            onCommandClick: () =>
+      onCommandClick: (_, container) =>
         useSidePanel.getState().openSidePanel("Settings", <SettingsPane explorer={container} />),
       commandButtonLabel: undefined,
       ariaLabel: "Settings",
@@ -211,7 +202,7 @@ export function createControlCommandBarButtons(container: Explorer): CommandButt
     const feedbackButtonOptions: CommandButtonComponentProps = {
       iconSrc: FeedbackIcon,
       iconAlt: label,
-      onCommandClick: () => container.openCESCVAFeedbackBlade(),
+      onCommandClick: (_, container) => container.openCESCVAFeedbackBlade(),
       commandButtonLabel: undefined,
       ariaLabel: label,
       tooltipText: label,
@@ -243,7 +234,7 @@ function areScriptsSupported(): boolean {
   );
 }
 
-function createOpenSynapseLinkDialogButton(container: Explorer): CommandButtonComponentProps {
+function createOpenSynapseLinkDialogButton(): CommandButtonComponentProps {
   if (configContext.platform === Platform.Emulator) {
     return undefined;
   }
@@ -261,7 +252,7 @@ function createOpenSynapseLinkDialogButton(container: Explorer): CommandButtonCo
   return {
     iconSrc: SynapseIcon,
     iconAlt: label,
-    onCommandClick: () => container.openEnableSynapseLinkDialog(),
+    onCommandClick: (_, container) => container.openEnableSynapseLinkDialog(),
     commandButtonLabel: label,
     hasPopup: false,
     disabled:
@@ -270,12 +261,12 @@ function createOpenSynapseLinkDialogButton(container: Explorer): CommandButtonCo
   };
 }
 
-function createLoginForEntraIDButton(container: Explorer): CommandButtonComponentProps {
+function createLoginForEntraIDButton(): CommandButtonComponentProps {
   if (configContext.platform !== Platform.Portal) {
     return undefined;
   }
 
-  const handleCommandClick = async () => {
+  const handleCommandClick: CommandButtonComponentProps["onCommandClick"] = async (_, container) => {
     await container.openLoginForEntraIDPopUp();
     useDataPlaneRbac.setState({ dataPlaneRbacEnabled: true });
   };
@@ -402,13 +393,14 @@ export function createScriptCommandButtons(selectedNodeState: SelectedNodeState)
   return buttons;
 }
 
-function createOpenQueryButton(container: Explorer): CommandButtonComponentProps {
+function createOpenQueryButton(): CommandButtonComponentProps {
   const label = "Open Query";
   return {
     iconSrc: BrowseQueriesIcon,
     iconAlt: label,
+    tooltipText: userContext.features.commandBarV2 ? "Open Query..." : "Open Query",
     keyboardAction: KeyboardAction.OPEN_QUERY,
-    onCommandClick: () =>
+    onCommandClick: (_, container) =>
       useSidePanel.getState().openSidePanel("Open Saved Queries", <BrowseQueriesPane explorer={container} />),
     commandButtonLabel: label,
     ariaLabel: label,
@@ -431,10 +423,7 @@ function createOpenQueryFromDiskButton(): CommandButtonComponentProps {
   };
 }
 
-function createOpenTerminalButtonByKind(
-  container: Explorer,
-  terminalKind: ViewModels.TerminalKind,
-): CommandButtonComponentProps {
+function createOpenTerminalButtonByKind(terminalKind: ViewModels.TerminalKind): CommandButtonComponentProps {
   const terminalFriendlyName = (): string => {
     switch (terminalKind) {
       case ViewModels.TerminalKind.Cassandra:
@@ -457,7 +446,7 @@ function createOpenTerminalButtonByKind(
   return {
     iconSrc: HostedTerminalIcon,
     iconAlt: label,
-    onCommandClick: () => {
+    onCommandClick: (_, container) => {
       if (useNotebook.getState().isNotebookEnabled) {
         container.openNotebookTerminal(terminalKind);
       }
@@ -471,11 +460,10 @@ function createOpenTerminalButtonByKind(
 }
 
 function createStaticCommandBarButtonsForResourceToken(
-  container: Explorer,
   selectedNodeState: SelectedNodeState,
 ): CommandButtonComponentProps[] {
   const newSqlQueryBtn = createNewSQLQueryButton(selectedNodeState);
-  const openQueryBtn = createOpenQueryButton(container);
+  const openQueryBtn = createOpenQueryButton();
 
   const resourceTokenCollection: ViewModels.CollectionBase = useDatabases.getState().resourceTokenCollection;
   const isResourceTokenCollectionNodeSelected: boolean =
@@ -488,20 +476,20 @@ function createStaticCommandBarButtonsForResourceToken(
 
   openQueryBtn.disabled = !isResourceTokenCollectionNodeSelected;
   if (!openQueryBtn.disabled) {
-    openQueryBtn.children = [createOpenQueryButton(container), createOpenQueryFromDiskButton()];
+    openQueryBtn.children = [createOpenQueryButton(), createOpenQueryFromDiskButton()];
   }
 
   return [newSqlQueryBtn, openQueryBtn];
 }
 
-export function createPostgreButtons(container: Explorer): CommandButtonComponentProps[] {
-  const openPostgreShellBtn = createOpenTerminalButtonByKind(container, ViewModels.TerminalKind.Postgres);
+export function createPostgreButtons(): CommandButtonComponentProps[] {
+  const openPostgreShellBtn = createOpenTerminalButtonByKind(ViewModels.TerminalKind.Postgres);
 
   return [openPostgreShellBtn];
 }
 
-export function createVCoreMongoButtons(container: Explorer): CommandButtonComponentProps[] {
-  const openVCoreMongoTerminalButton = createOpenTerminalButtonByKind(container, ViewModels.TerminalKind.VCoreMongo);
+export function createVCoreMongoButtons(): CommandButtonComponentProps[] {
+  const openVCoreMongoTerminalButton = createOpenTerminalButtonByKind(ViewModels.TerminalKind.VCoreMongo);
 
   return [openVCoreMongoTerminalButton];
 }

src/Explorer/Menus/CommandBar/CommandBarUtil.test.tsx

@@ -1,8 +1,10 @@
 import { ICommandBarItemProps } from "@fluentui/react";
+import Explorer from "Explorer/Explorer";
 import { CommandButtonComponentProps } from "../../Controls/CommandButton/CommandButtonComponent";
 import * as CommandBarUtil from "./CommandBarUtil";
 
 describe("CommandBarUtil tests", () => {
+  const mockExplorer = {} as Explorer;
   const createButton = (): CommandButtonComponentProps => {
     return {
       iconSrc: "icon",
@@ -22,7 +24,7 @@ describe("CommandBarUtil tests", () => {
     const btn = createButton();
     const backgroundColor = "backgroundColor";
 
-    const converteds = CommandBarUtil.convertButton([btn], backgroundColor);
+    const converteds = CommandBarUtil.convertButton([btn], backgroundColor, mockExplorer);
     expect(converteds.length).toBe(1);
     const converted = converteds[0];
     expect(converted.split).toBe(undefined);
@@ -46,7 +48,7 @@ describe("CommandBarUtil tests", () => {
       btn.children.push(child);
     }
 
-    const converteds = CommandBarUtil.convertButton([btn], "backgroundColor");
+    const converteds = CommandBarUtil.convertButton([btn], "backgroundColor", mockExplorer);
     expect(converteds.length).toBe(1);
     const converted = converteds[0];
     expect(converted.split).toBe(true);
@@ -62,7 +64,7 @@ describe("CommandBarUtil tests", () => {
       btns.push(createButton());
     }
 
-    const converteds = CommandBarUtil.convertButton(btns, "backgroundColor");
+    const converteds = CommandBarUtil.convertButton(btns, "backgroundColor", mockExplorer);
     const uniqueKeys = converteds
       .map((btn: ICommandBarItemProps) => btn.key)
       .filter((value: string, index: number, self: string[]) => self.indexOf(value) === index);
@@ -74,10 +76,10 @@ describe("CommandBarUtil tests", () => {
     const backgroundColor = "backgroundColor";
 
     btn.commandButtonLabel = undefined;
-    let converted = CommandBarUtil.convertButton([btn], backgroundColor)[0];
+    let converted = CommandBarUtil.convertButton([btn], backgroundColor, mockExplorer)[0];
     expect(converted.text).toEqual(btn.tooltipText);
 
-    converted = CommandBarUtil.convertButton([btn], backgroundColor)[0];
+    converted = CommandBarUtil.convertButton([btn], backgroundColor, mockExplorer)[0];
     delete btn.commandButtonLabel;
     expect(converted.text).toEqual(btn.tooltipText);
   });

src/Explorer/Menus/CommandBar/CommandBarUtil.tsx

@@ -25,7 +25,11 @@ import { MemoryTracker } from "./MemoryTrackerComponent";
  * Convert our NavbarButtonConfig to UI Fabric buttons
  * @param btns
  */
-export const convertButton = (btns: CommandButtonComponentProps[], backgroundColor: string): ICommandBarItemProps[] => {
+export const convertButton = (
+  btns: CommandButtonComponentProps[],
+  backgroundColor: string,
+  container: Explorer,
+): ICommandBarItemProps[] => {
   const buttonHeightPx =
     configContext.platform == Platform.Fabric
       ? StyleConstants.FabricCommandBarButtonHeight
@@ -54,15 +58,14 @@ export const convertButton = (btns: CommandButtonComponentProps[], backgroundCol
         iconProps: {
           style: {
             width: StyleConstants.CommandBarIconWidth, // 16
-            alignSelf: btn.iconName ? "baseline" : undefined,
+            alignSelf: undefined,
             filter: getFilter(btn.disabled),
           },
           imageProps: btn.iconSrc ? { src: btn.iconSrc, alt: btn.iconAlt } : undefined,
-          iconName: btn.iconName,
         },
         onClick: btn.onCommandClick
           ? (ev?: React.MouseEvent<HTMLElement, MouseEvent> | React.KeyboardEvent<HTMLElement>) => {
-              btn.onCommandClick(ev);
+              btn.onCommandClick(ev, container);
               let copilotEnabled = false;
               if (useQueryCopilot.getState().copilotEnabled && useQueryCopilot.getState().copilotUserDBEnabled) {
                 copilotEnabled = useQueryCopilot.getState().copilotEnabledforExecution;
@@ -135,7 +138,7 @@ export const convertButton = (btns: CommandButtonComponentProps[], backgroundCol
         result.split = true;
 
         result.subMenuProps = {
-          items: convertButton(btn.children, backgroundColor),
+          items: convertButton(btn.children, backgroundColor, container),
           styles: {
             list: {
               // TODO Figure out how to do it the proper way with subComponentStyles.
@@ -186,7 +189,7 @@ export const convertButton = (btns: CommandButtonComponentProps[], backgroundCol
           option?: IDropdownOption,
           index?: number,
         ): void => {
-          btn.children[index].onCommandClick(event);
+          btn.children[index].onCommandClick(event, container);
           TelemetryProcessor.trace(Action.ClickCommandBarButton, ActionModifiers.Mark, { label: option.text });
         };
 
@@ -237,14 +240,17 @@ export const createConnectionStatus = (container: Explorer, poolId: PoolIdType,
   };
 };
 
-export function createKeyboardHandlers(allButtons: CommandButtonComponentProps[]): KeyboardHandlerMap {
+export function createKeyboardHandlers(
+  allButtons: CommandButtonComponentProps[],
+  container: Explorer,
+): KeyboardHandlerMap {
   const handlers: KeyboardHandlerMap = {};
 
   function createHandlers(buttons: CommandButtonComponentProps[]) {
     buttons.forEach((button) => {
       if (!button.disabled && button.keyboardAction) {
         handlers[button.keyboardAction] = (e) => {
-          button.onCommandClick(e);
+          button.onCommandClick(e, container);
 
           // If the handler is bound, it means the button is visible and enabled, so we should prevent the default action
           return true;

src/Explorer/Menus/CommandBar/useCommandBar.ts

@@ -0,0 +1,16 @@
+import { CommandButtonComponentProps } from "Explorer/Controls/CommandButton/CommandButtonComponent";
+import create, { UseStore } from "zustand";
+
+export interface CommandBarStore {
+  contextButtons: CommandButtonComponentProps[];
+  setContextButtons: (contextButtons: CommandButtonComponentProps[]) => void;
+  isHidden: boolean;
+  setIsHidden: (isHidden: boolean) => void;
+}
+
+export const useCommandBar: UseStore<CommandBarStore> = create((set) => ({
+  contextButtons: [],
+  setContextButtons: (contextButtons: CommandButtonComponentProps[]) => set((state) => ({ ...state, contextButtons })),
+  isHidden: false,
+  setIsHidden: (isHidden: boolean) => set((state) => ({ ...state, isHidden })),
+}));

src/Explorer/Menus/CommandBarV2/CommandBarV2.tsx

@@ -0,0 +1,159 @@
+import {
+  makeStyles,
+  Menu,
+  MenuButton,
+  MenuItem,
+  MenuList,
+  MenuPopover,
+  MenuTrigger,
+  Toolbar,
+  ToolbarButton,
+  ToolbarDivider,
+  ToolbarGroup,
+  Tooltip,
+} from "@fluentui/react-components";
+import { CommandButtonComponentProps } from "Explorer/Controls/CommandButton/CommandButtonComponent";
+import Explorer from "Explorer/Explorer";
+import {
+  createPlatformButtons,
+  createStaticCommandBarButtons,
+} from "Explorer/Menus/CommandBar/CommandBarComponentButtonFactory";
+import { createKeyboardHandlers } from "Explorer/Menus/CommandBar/CommandBarUtil";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
+import { CosmosFluentProvider, cosmosShorthands, tokens } from "Explorer/Theme/ThemeUtil";
+import { useSelectedNode } from "Explorer/useSelectedNode";
+import { KeyboardActionGroup, useKeyboardActionGroup } from "KeyboardShortcuts";
+import React, { MouseEventHandler } from "react";
+
+const useToolbarStyles = makeStyles({
+  toolbar: {
+    height: tokens.layoutRowHeight,
+    justifyContent: "space-between", // Ensures that the two toolbar groups are at opposite ends of the toolbar
+    ...cosmosShorthands.borderBottom(),
+  },
+  toolbarGroup: {
+    display: "flex",
+  },
+});
+
+export interface CommandBarV2Props {
+  explorer: Explorer;
+}
+
+export const CommandBarV2: React.FC<CommandBarV2Props> = ({ explorer }: CommandBarV2Props) => {
+  const styles = useToolbarStyles();
+  const selectedNodeState = useSelectedNode();
+  const contextButtons = useCommandBar((state) => state.contextButtons);
+  const isHidden = useCommandBar((state) => state.isHidden);
+  const setKeyboardHandlers = useKeyboardActionGroup(KeyboardActionGroup.COMMAND_BAR);
+  const staticButtons = createStaticCommandBarButtons(selectedNodeState);
+  const platformButtons = createPlatformButtons();
+
+  if (isHidden) {
+    setKeyboardHandlers({});
+    return null;
+  }
+
+  const allButtons = staticButtons.concat(contextButtons).concat(platformButtons);
+  const keyboardHandlers = createKeyboardHandlers(allButtons, explorer);
+  setKeyboardHandlers(keyboardHandlers);
+
+  return (
+    <CosmosFluentProvider>
+      <Toolbar className={styles.toolbar}>
+        <ToolbarGroup role="presentation" className={styles.toolbarGroup}>
+          {staticButtons.map((button, index) =>
+            renderButton(explorer, button, `static-${index}`, contextButtons?.length > 0),
+          )}
+          {staticButtons.length > 0 && contextButtons?.length > 0 && <ToolbarDivider />}
+          {contextButtons.map((button, index) => renderButton(explorer, button, `context-${index}`, false))}
+        </ToolbarGroup>
+        <ToolbarGroup role="presentation">
+          {platformButtons.map((button, index) => renderButton(explorer, button, `platform-${index}`, true))}
+        </ToolbarGroup>
+      </Toolbar>
+    </CosmosFluentProvider>
+  );
+};
+
+// This allows us to migrate individual buttons over to using a JSX.Element for the icon, without requiring us to change them all at once.
+function renderIcon(iconSrcOrElement: string | JSX.Element, alt?: string): JSX.Element {
+  if (typeof iconSrcOrElement === "string") {
+    return <img src={iconSrcOrElement} alt={alt} />;
+  }
+  return iconSrcOrElement;
+}
+
+function renderButton(
+  explorer: Explorer,
+  btn: CommandButtonComponentProps,
+  key: string,
+  iconOnly: boolean,
+): JSX.Element {
+  if (btn.isDivider) {
+    return <ToolbarDivider key={key} />;
+  }
+
+  const hasChildren = !!btn.children && btn.children.length > 0;
+  const label = btn.commandButtonLabel || btn.tooltipText;
+  const tooltip = btn.tooltipText || (iconOnly ? label : undefined);
+  const onClick: MouseEventHandler | undefined =
+    btn.onCommandClick && !hasChildren ? (e) => btn.onCommandClick(e, explorer) : undefined;
+
+  // We don't know which element will be the top-level element, so just slap a key on all of 'em
+
+  let button = hasChildren ? (
+    <MenuButton key={key} appearance="subtle" aria-label={btn.ariaLabel} icon={renderIcon(btn.iconSrc, btn.iconAlt)}>
+      {!iconOnly && label}
+    </MenuButton>
+  ) : (
+    <ToolbarButton key={key} aria-label={btn.ariaLabel} onClick={onClick} icon={renderIcon(btn.iconSrc, btn.iconAlt)}>
+      {!iconOnly && label}
+    </ToolbarButton>
+  );
+
+  if (tooltip) {
+    button = (
+      <Tooltip key={key} content={tooltip} relationship="description" withArrow>
+        {button}
+      </Tooltip>
+    );
+  }
+
+  if (hasChildren) {
+    button = (
+      <Menu key={key}>
+        <MenuTrigger disableButtonEnhancement>{button}</MenuTrigger>
+        <MenuPopover>
+          <MenuList>{btn.children.map((child, index) => renderMenuItem(explorer, child, index.toString()))}</MenuList>
+        </MenuPopover>
+      </Menu>
+    );
+  }
+
+  return button;
+}
+
+function renderMenuItem(explorer: Explorer, btn: CommandButtonComponentProps, key: string): JSX.Element {
+  const hasChildren = !!btn.children && btn.children.length > 0;
+  const onClick: MouseEventHandler | undefined = btn.onCommandClick
+    ? (e) => btn.onCommandClick(e, explorer)
+    : undefined;
+  const item = (
+    <MenuItem key={key} onClick={onClick} icon={renderIcon(btn.iconSrc, btn.iconAlt)}>
+      {btn.commandButtonLabel || btn.tooltipText}
+    </MenuItem>
+  );
+
+  if (hasChildren) {
+    return (
+      <Menu>
+        <MenuTrigger disableButtonEnhancement>{item}</MenuTrigger>
+        <MenuPopover>
+          <MenuList>{btn.children.map((child, index) => renderMenuItem(explorer, child, index.toString()))}</MenuList>
+        </MenuPopover>
+      </Menu>
+    );
+  }
+  return item;
+}

src/Explorer/Menus/NotificationConsole/NotificationConsoleComponent.tsx

@@ -131,6 +131,7 @@ export class NotificationConsoleComponent extends React.Component<
           </div>
           <div
             className="expandCollapseButton"
+            data-test="NotificationConsole/ExpandCollapseButton"
             role="button"
             tabIndex={0}
             aria-label={"console button" + (this.props.isConsoleExpanded ? " expanded" : " collapsed")}
@@ -147,7 +148,7 @@ export class NotificationConsoleComponent extends React.Component<
           height={this.props.isConsoleExpanded ? "auto" : 0}
           onAnimationEnd={this.onConsoleWasExpanded}
         >
-          <div className="notificationConsoleContents">
+          <div data-test="NotificationConsole/Contents" className="notificationConsoleContents">
             <div className="notificationConsoleControls">
               <Dropdown
                 label="Filter:"

src/Explorer/Menus/NotificationConsole/__snapshots__/NotificationConsoleComponent.test.tsx.snap

@@ -74,6 +74,7 @@ exports[`NotificationConsoleComponent renders the console 1`] = `
       aria-expanded={true}
       aria-label="console button collapsed"
       className="expandCollapseButton"
+      data-test="NotificationConsole/ExpandCollapseButton"
       role="button"
       tabIndex={0}
     >
@@ -109,6 +110,7 @@ exports[`NotificationConsoleComponent renders the console 1`] = `
   >
     <div
       className="notificationConsoleContents"
+      data-test="NotificationConsole/Contents"
     >
       <div
         className="notificationConsoleControls"
@@ -245,6 +247,7 @@ exports[`NotificationConsoleComponent renders the console 2`] = `
       aria-expanded={true}
       aria-label="console button collapsed"
       className="expandCollapseButton"
+      data-test="NotificationConsole/ExpandCollapseButton"
       role="button"
       tabIndex={0}
     >
@@ -280,6 +283,7 @@ exports[`NotificationConsoleComponent renders the console 2`] = `
   >
     <div
       className="notificationConsoleContents"
+      data-test="NotificationConsole/Contents"
     >
       <div
         className="notificationConsoleControls"

src/Explorer/MostRecentActivity/MostRecentActivity.test.ts

@@ -1,13 +1,13 @@
+import { clear, collectionWasOpened, getItems, Type } from "Explorer/MostRecentActivity/MostRecentActivity";
 import { observable } from "knockout";
-import { mostRecentActivity } from "./MostRecentActivity";
 
 describe("MostRecentActivity", () => {
-  const accountId = "some account";
+  const accountName = "some account";
 
-  beforeEach(() => mostRecentActivity.clear(accountId));
+  beforeEach(() => clear(accountName));
 
   it("Has no items at first", () => {
-    expect(mostRecentActivity.getItems(accountId)).toStrictEqual([]);
+    expect(getItems(accountName)).toStrictEqual([]);
   });
 
   it("Can record collections being opened", () => {
@@ -18,9 +18,9 @@ describe("MostRecentActivity", () => {
       databaseId,
     };
 
-    mostRecentActivity.collectionWasOpened(accountId, collection);
+    collectionWasOpened(accountName, collection);
 
-    const activity = mostRecentActivity.getItems(accountId);
+    const activity = getItems(accountName);
     expect(activity).toEqual([
       expect.objectContaining({
         collectionId,
@@ -29,58 +29,24 @@ describe("MostRecentActivity", () => {
     ]);
   });
 
-  it("Can record notebooks being opened", () => {
-    const name = "some notebook";
-    const path = "some path";
-    const notebook = { name, path };
+  it("Does not store duplicate entries", () => {
+    const collectionId = "some collection";
+    const databaseId = "some database";
+    const collection = {
+      id: observable(collectionId),
+      databaseId,
+    };
 
-    mostRecentActivity.notebookWasItemOpened(accountId, notebook);
+    collectionWasOpened(accountName, collection);
+    collectionWasOpened(accountName, collection);
 
-    const activity = mostRecentActivity.getItems(accountId);
-    expect(activity).toEqual([expect.objectContaining(notebook)]);
-  });
-
-  it("Filters out duplicates", () => {
-    const name = "some notebook";
-    const path = "some path";
-    const notebook = { name, path };
-    const sameNotebook = { name, path };
-
-    mostRecentActivity.notebookWasItemOpened(accountId, notebook);
-    mostRecentActivity.notebookWasItemOpened(accountId, sameNotebook);
-
-    const activity = mostRecentActivity.getItems(accountId);
-    expect(activity.length).toEqual(1);
-    expect(activity).toEqual([expect.objectContaining(notebook)]);
-  });
-
-  it("Allows for multiple accounts", () => {
-    const name = "some notebook";
-    const path = "some path";
-    const notebook = { name, path };
-
-    const anotherNotebook = { name: "Another " + name, path };
-    const anotherAccountId = "Another " + accountId;
-
-    mostRecentActivity.notebookWasItemOpened(accountId, notebook);
-    mostRecentActivity.notebookWasItemOpened(anotherAccountId, anotherNotebook);
-
-    expect(mostRecentActivity.getItems(accountId)).toEqual([expect.objectContaining(notebook)]);
-    expect(mostRecentActivity.getItems(anotherAccountId)).toEqual([expect.objectContaining(anotherNotebook)]);
-  });
-
-  it("Can store multiple distinct elements, in FIFO order", () => {
-    const name = "some notebook";
-    const path = "some path";
-    const first = { name, path };
-    const second = { name: "Another " + name, path };
-    const third = { name, path: "Another " + path };
-
-    mostRecentActivity.notebookWasItemOpened(accountId, first);
-    mostRecentActivity.notebookWasItemOpened(accountId, second);
-    mostRecentActivity.notebookWasItemOpened(accountId, third);
-
-    const activity = mostRecentActivity.getItems(accountId);
-    expect(activity).toEqual([third, second, first].map(expect.objectContaining));
+    const activity = getItems(accountName);
+    expect(activity).toEqual([
+      expect.objectContaining({
+        type: Type.OpenCollection,
+        collectionId,
+        databaseId,
+      }),
+    ]);
   });
 });

src/Explorer/MostRecentActivity/MostRecentActivity.ts

@@ -1,10 +1,10 @@
+import { AppStateComponentNames, deleteState, loadState, saveState } from "Shared/AppStatePersistenceUtility";
 import { CollectionBase } from "../../Contracts/ViewModels";
-import { StorageKey, LocalStorageUtility } from "../../Shared/StorageUtility";
-import { NotebookContentItem } from "../Notebook/NotebookContentItem";
+import { LocalStorageUtility, StorageKey } from "../../Shared/StorageUtility";
 
 export enum Type {
-  OpenCollection,
-  OpenNotebook,
+  OpenCollection = "OpenCollection",
+  OpenNotebook = "OpenNotebook",
 }
 
 export interface OpenNotebookItem {
@@ -21,158 +21,174 @@ export interface OpenCollectionItem {
 
 type Item = OpenNotebookItem | OpenCollectionItem;
 
-// Update schemaVersion if you are going to change this interface
-interface StoredData {
-  schemaVersion: string;
-  itemsMap: { [accountId: string]: Item[] }; // FIFO
-}
+const itemsMaxNumber: number = 5;
 
 /**
- * Stores most recent activity
+ * Migrate old data to new AppState
  */
-class MostRecentActivity {
-  private static readonly schemaVersion: string = "2";
-  private static itemsMaxNumber: number = 5;
-  private storedData: StoredData;
-  constructor() {
-    // Retrieve from local storage
+const migrateOldData = () => {
   if (LocalStorageUtility.hasItem(StorageKey.MostRecentActivity)) {
+    const oldDataSchemaVersion: string = "2";
     const rawData = LocalStorageUtility.getEntryString(StorageKey.MostRecentActivity);
-
-      if (!rawData) {
-        this.storedData = MostRecentActivity.createEmptyData();
-      } else {
-        try {
-          this.storedData = JSON.parse(rawData);
-        } catch (e) {
-          console.error("Unable to parse stored most recent activity. Use empty data:", rawData);
-          this.storedData = MostRecentActivity.createEmptyData();
+    if (rawData) {
+      const oldData = JSON.parse(rawData);
+      if (oldData.schemaVersion === oldDataSchemaVersion) {
+        const itemsMap: Record<string, Item[]> = oldData.itemsMap;
+        Object.keys(itemsMap).forEach((accountId: string) => {
+          const accountName = accountId.split("/").pop();
+          if (accountName) {
+            saveState(
+              {
+                componentName: AppStateComponentNames.MostRecentActivity,
+                globalAccountName: accountName,
+              },
+              itemsMap[accountId].map((item) => {
+                if ((item.type as unknown as number) === 0) {
+                  item.type = Type.OpenCollection;
+                } else if ((item.type as unknown as number) === 1) {
+                  item.type = Type.OpenNotebook;
+                }
+                return item;
+              }),
+            );
+          }
+        });
+      }
     }
 
-        // If version doesn't match or schema broke, nuke it!
-        if (
-          !this.storedData.hasOwnProperty("schemaVersion") ||
-          this.storedData["schemaVersion"] !== MostRecentActivity.schemaVersion
-        ) {
-          LocalStorageUtility.removeEntry(StorageKey.MostRecentActivity);
-          this.storedData = MostRecentActivity.createEmptyData();
-        }
-      }
-    } else {
-      this.storedData = MostRecentActivity.createEmptyData();
-    }
-
-    for (let p in this.storedData.itemsMap) {
-      this.cleanupItems(p);
-    }
-    this.saveToLocalStorage();
-  }
-
-  private static createEmptyData(): StoredData {
-    return {
-      schemaVersion: MostRecentActivity.schemaVersion,
-      itemsMap: {},
-    };
-  }
-
-  private static isEmpty(object: any) {
-    return Object.keys(object).length === 0 && object.constructor === Object;
-  }
-
-  private saveToLocalStorage() {
-    if (MostRecentActivity.isEmpty(this.storedData.itemsMap)) {
-      if (LocalStorageUtility.hasItem(StorageKey.MostRecentActivity)) {
+    // Remove old data
     LocalStorageUtility.removeEntry(StorageKey.MostRecentActivity);
   }
-      // Don't save if empty
-      return;
-    }
+};
 
-    LocalStorageUtility.setEntryString(StorageKey.MostRecentActivity, JSON.stringify(this.storedData));
-  }
-
-  private addItem(accountId: string, newItem: Item): void {
+const addItem = (accountName: string, newItem: Item): void => {
   // When debugging, accountId is "undefined": most recent activity cannot be saved by account. Uncomment to disable.
   // if (!accountId) {
   //   return;
   // }
 
+  let items =
+    (loadState({
+      componentName: AppStateComponentNames.MostRecentActivity,
+      globalAccountName: accountName,
+    }) as Item[]) || [];
+
   // Remove duplicate
-    MostRecentActivity.removeDuplicate(newItem, this.storedData.itemsMap[accountId]);
+  items = removeDuplicate(newItem, items);
 
-    this.storedData.itemsMap[accountId] = this.storedData.itemsMap[accountId] || [];
-    this.storedData.itemsMap[accountId].unshift(newItem);
-    this.cleanupItems(accountId);
-    this.saveToLocalStorage();
+  items.unshift(newItem);
+  items = cleanupItems(items, accountName);
+  saveState(
+    {
+      componentName: AppStateComponentNames.MostRecentActivity,
+      globalAccountName: accountName,
+    },
+    items,
+  );
+};
+
+export const getItems = (accountName: string): Item[] => {
+  if (!accountName) {
+    return [];
   }
 
-  public getItems(accountId: string): Item[] {
-    return this.storedData.itemsMap[accountId] || [];
+  return (
+    (loadState({
+      componentName: AppStateComponentNames.MostRecentActivity,
+      globalAccountName: accountName,
+    }) as Item[]) || []
+  );
+};
+
+export const collectionWasOpened = (
+  accountName: string,
+  { id, databaseId }: Pick<CollectionBase, "id" | "databaseId">,
+) => {
+  if (accountName === undefined) {
+    return;
   }
 
-  public collectionWasOpened(accountId: string, { id, databaseId }: Pick<CollectionBase, "id" | "databaseId">) {
   const collectionId = id();
-    this.addItem(accountId, {
+  addItem(accountName, {
     type: Type.OpenCollection,
     databaseId,
     collectionId,
   });
-  }
+};
 
-  public notebookWasItemOpened(accountId: string, { name, path }: Pick<NotebookContentItem, "name" | "path">) {
-    this.addItem(accountId, {
-      type: Type.OpenNotebook,
-      name,
-      path,
-    });
-  }
-
-  public clear(accountId: string): void {
-    delete this.storedData.itemsMap[accountId];
-    this.saveToLocalStorage();
-  }
-
-  /**
-   * Find items by doing strict comparison and remove from array if duplicate is found
-   * @param item
-   */
-  private static removeDuplicate(item: Item, itemsArray: Item[]): void {
-    if (!itemsArray) {
+export const clear = (accountName: string): void => {
+  if (!accountName) {
     return;
   }
 
+  deleteState({
+    componentName: AppStateComponentNames.MostRecentActivity,
+    globalAccountName: accountName,
+  });
+};
+
+// Sort object by key
+const sortObjectKeys = (unordered: Record<string, unknown>): Record<string, unknown> => {
+  return Object.keys(unordered)
+    .sort()
+    .reduce((obj: Record<string, unknown>, key: string) => {
+      obj[key] = unordered[key];
+      return obj;
+    }, {});
+};
+
+/**
+ * Find items by doing strict comparison and remove from array if duplicate is found.
+ * Modifies the array.
+ * @param item
+ * @param itemsArray
+ * @returns new array
+ */
+const removeDuplicate = (item: Item, itemsArray: Item[]): Item[] => {
+  if (!itemsArray) {
+    return itemsArray;
+  }
+
+  const result: Item[] = [...itemsArray];
+
   let index = -1;
-    for (let i = 0; i < itemsArray.length; i++) {
-      const currentItem = itemsArray[i];
-      if (JSON.stringify(currentItem) === JSON.stringify(item)) {
+  for (let i = 0; i < result.length; i++) {
+    const currentItem = result[i];
+
+    if (
+      JSON.stringify(sortObjectKeys(currentItem as unknown as Record<string, unknown>)) ===
+      JSON.stringify(sortObjectKeys(item as unknown as Record<string, unknown>))
+    ) {
       index = i;
       break;
     }
   }
 
   if (index !== -1) {
-      itemsArray.splice(index, 1);
-    }
+    result.splice(index, 1);
   }
 
-  /**
+  return result;
+};
+
+/**
  * Remove unknown types
  * Limit items to max number
+ * Modifies the array.
  */
-  private cleanupItems(accountId: string): void {
-    if (!this.storedData.itemsMap.hasOwnProperty(accountId)) {
-      return;
+const cleanupItems = (items: Item[], accountName: string): Item[] => {
+  if (accountName === undefined) {
+    return [];
   }
 
-    const itemsArray = this.storedData.itemsMap[accountId]
-      .filter((item) => item.type in Type)
-      .slice(0, MostRecentActivity.itemsMaxNumber);
+  const itemsArray = items.filter((item) => item.type in Type).slice(0, itemsMaxNumber);
   if (itemsArray.length === 0) {
-      delete this.storedData.itemsMap[accountId];
-    } else {
-      this.storedData.itemsMap[accountId] = itemsArray;
+    deleteState({
+      componentName: AppStateComponentNames.MostRecentActivity,
+      globalAccountName: accountName,
+    });
   }
-  }
-}
+  return itemsArray;
+};
 
-export const mostRecentActivity = new MostRecentActivity();
+migrateOldData();

src/Explorer/Notebook/useNotebook.ts

@@ -1,5 +1,6 @@
 import { isPublicInternetAccessAllowed } from "Common/DatabaseAccountUtility";
 import { PhoenixClient } from "Phoenix/PhoenixClient";
+import { useNewPortalBackendEndpoint } from "Utils/EndpointUtils";
 import { cloneDeep } from "lodash";
 import create, { UseStore } from "zustand";
 import { AuthType } from "../../AuthType";
@@ -127,7 +128,9 @@ export const useNotebook: UseStore<NotebookState> = create((set, get) => ({
       userContext.apiType === "Postgres" || userContext.apiType === "VCoreMongo"
         ? databaseAccount?.location
         : databaseAccount?.properties?.writeLocations?.[0]?.locationName.toLowerCase();
-    const disallowedLocationsUri = `${configContext.BACKEND_ENDPOINT}/api/disallowedLocations`;
+    const disallowedLocationsUri: string = useNewPortalBackendEndpoint(Constants.BackendApi.DisallowedLocations)
+      ? `${configContext.PORTAL_BACKEND_ENDPOINT}/api/disallowedlocations`
+      : `${configContext.BACKEND_ENDPOINT}/api/disallowedLocations`;
     const authorizationHeader = getAuthorizationHeader();
     try {
       const response = await fetch(disallowedLocationsUri, {

src/Explorer/Panes/SettingsPane/SettingsPane.tsx

@@ -1,22 +1,25 @@
 import {
   Checkbox,
   ChoiceGroup,
+  DefaultButton,
   IChoiceGroupOption,
   ISpinButtonStyles,
   IToggleStyles,
-  Icon,
   MessageBar,
   MessageBarType,
   Position,
   SpinButton,
   Toggle,
-  TooltipHost,
 } from "@fluentui/react";
+import { Accordion, AccordionHeader, AccordionItem, AccordionPanel, makeStyles } from "@fluentui/react-components";
+import { AuthType } from "AuthType";
 import * as Constants from "Common/Constants";
 import { SplitterDirection } from "Common/Splitter";
 import { InfoTooltip } from "Common/Tooltip/InfoTooltip";
 import { Platform, configContext } from "ConfigContext";
+import { useDialog } from "Explorer/Controls/Dialog";
 import { useDatabases } from "Explorer/useDatabases";
+import { deleteAllStates } from "Shared/AppStatePersistenceUtility";
 import {
   DefaultRUThreshold,
   LocalStorageUtility,
@@ -29,14 +32,13 @@ import * as StringUtility from "Shared/StringUtility";
 import { updateUserContext, userContext } from "UserContext";
 import { logConsoleError, logConsoleInfo } from "Utils/NotificationConsoleUtils";
 import * as PriorityBasedExecutionUtils from "Utils/PriorityBasedExecutionUtils";
+import { getReadOnlyKeys, listKeys } from "Utils/arm/generatedClients/cosmos/databaseAccounts";
 import { useQueryCopilot } from "hooks/useQueryCopilot";
 import { useSidePanel } from "hooks/useSidePanel";
 import React, { FunctionComponent, useState } from "react";
+import create, { UseStore } from "zustand";
 import Explorer from "../../Explorer";
 import { RightPaneForm, RightPaneFormProps } from "../RightPaneForm/RightPaneForm";
-import { AuthType } from "AuthType";
-import create, { UseStore } from "zustand";
-import { getReadOnlyKeys, listKeys } from "Utils/arm/generatedClients/cosmos/databaseAccounts";
 
 export interface DataPlaneRbacState {
   dataPlaneRbacEnabled: boolean;
@@ -50,6 +52,39 @@ export interface DataPlaneRbacState {
 
 type DataPlaneRbacStore = UseStore<Partial<DataPlaneRbacState>>;
 
+const useStyles = makeStyles({
+  bulletList: {
+    listStyleType: "disc",
+    paddingLeft: "20px",
+  },
+  container: {
+    display: "flex",
+    flexDirection: "column",
+    height: "100%",
+  },
+  firstItem: {
+    flex: "1",
+  },
+  header: {
+    marginRight: "5px",
+  },
+  headerIcon: {
+    paddingTop: "4px",
+    cursor: "pointer",
+  },
+  settingsSectionContainer: {
+    paddingLeft: "15px",
+  },
+  settingsSectionDescription: {
+    paddingBottom: "10px",
+    fontSize: "12px",
+  },
+  subHeader: {
+    marginRight: "5px",
+    fontSize: "12px",
+  },
+});
+
 export const useDataPlaneRbac: DataPlaneRbacStore = create(() => ({
   dataPlaneRbacEnabled: false,
 }));
@@ -133,6 +168,9 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
   const [copilotSampleDBEnabled, setCopilotSampleDBEnabled] = useState<boolean>(
     LocalStorageUtility.getEntryString(StorageKey.CopilotSampleDBEnabled) === "true",
   );
+
+  const styles = useStyles();
+
   const explorerVersion = configContext.gitSha;
   const shouldShowQueryPageOptions = userContext.apiType === "SQL";
   const shouldShowGraphAutoVizOption = userContext.apiType === "Gremlin";
@@ -153,6 +191,7 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
 
     LocalStorageUtility.setEntryNumber(StorageKey.CustomItemPerPage, customItemPerPage);
 
+    if (configContext.platform !== Platform.Fabric) {
       LocalStorageUtility.setEntryString(StorageKey.DataPlaneRbacEnabled, enableDataPlaneRBACOption);
       if (
         enableDataPlaneRBACOption === Constants.RBACOptions.setTrueRBACOption ||
@@ -192,6 +231,7 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
           useDataPlaneRbac.setState({ dataPlaneRbacEnabled: false });
         }
       }
+    }
 
     LocalStorageUtility.setEntryBoolean(StorageKey.RUThresholdEnabled, ruThresholdEnabled);
     LocalStorageUtility.setEntryBoolean(StorageKey.QueryTimeoutEnabled, queryTimeoutEnabled);
@@ -428,18 +468,19 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
 
   return (
     <RightPaneForm {...genericPaneProps}>
-      <div className="paneMainContent">
+      <div className={`paneMainContent ${styles.container}`}>
+        <Accordion className={styles.firstItem}>
           {shouldShowQueryPageOptions && (
-          <div className="settingsSection">
-            <div className="settingsSectionPart">
-              <fieldset>
-                <legend id="pageOptions" className="settingsSectionLabel legendLabel">
-                  Page Options
-                </legend>
-                <InfoTooltip>
-                  Choose Custom to specify a fixed amount of query results to show, or choose Unlimited to show as many
-                  query results per page.
-                </InfoTooltip>
+            <AccordionItem value="1">
+              <AccordionHeader>
+                <div className={styles.header}>Page Options</div>
+              </AccordionHeader>
+              <AccordionPanel>
+                <div className={styles.settingsSectionContainer}>
+                  <div className={styles.settingsSectionDescription}>
+                    Choose Custom to specify a fixed amount of query results to show, or choose Unlimited to show as
+                    many query results per page.
+                  </div>
                   <ChoiceGroup
                     ariaLabelledBy="pageOptions"
                     selectedKey={pageOption}
@@ -447,14 +488,15 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                     styles={choiceButtonStyles}
                     onChange={handleOnPageOptionChange}
                   />
-              </fieldset>
                 </div>
-            <div className="tabs settingsSectionPart">
+                <div className={`tabs ${styles.settingsSectionContainer}`}>
                   {isCustomPageOptionSelected() && (
                     <div className="tabcontent">
-                  <div className="settingsSectionLabel">
-                    Query results per page
-                    <InfoTooltip>Enter the number of query results that should be shown per page.</InfoTooltip>
+                      <div className={styles.settingsSectionDescription}>
+                        Query results per page{" "}
+                        <InfoTooltip className={styles.headerIcon}>
+                          Enter the number of query results that should be shown per page.
+                        </InfoTooltip>
                       </div>
 
                       <SpinButton
@@ -474,34 +516,18 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                     </div>
                   )}
                 </div>
-          </div>
+              </AccordionPanel>
+            </AccordionItem>
           )}
-        {userContext.apiType === "SQL" && userContext.authType === AuthType.AAD && (
-          <>
-            <div className="settingsSection">
-              <div className="settingsSectionPart">
-                <fieldset>
-                  <legend id="enableDataPlaneRBACOptions" className="settingsSectionLabel legendLabel">
-                    Enable Entra ID RBAC
-                  </legend>
-                  <TooltipHost
-                    content={
-                      <>
-                        Choose Automatic to enable Entra ID RBAC automatically. True/False to force enable/disable Entra
-                        ID RBAC.
-                        <a
-                          href="https://learn.microsoft.com/en-us/azure/cosmos-db/how-to-setup-rbac#use-data-explorer"
-                          target="_blank"
-                          rel="noopener noreferrer"
-                        >
-                          {" "}
-                          Learn more{" "}
-                        </a>
-                      </>
-                    }
-                  >
-                    <Icon iconName="Info" ariaLabel="Info tooltip" className="panelInfoIcon" tabIndex={0} />
-                  </TooltipHost>
+          {userContext.apiType === "SQL" &&
+            userContext.authType === AuthType.AAD &&
+            configContext.platform !== Platform.Fabric && (
+              <AccordionItem value="2">
+                <AccordionHeader>
+                  <div className={styles.header}>Enable Entra ID RBAC</div>
+                </AccordionHeader>
+                <AccordionPanel>
+                  <div className={styles.settingsSectionContainer}>
                     {showDataPlaneRBACWarning && configContext.platform === Platform.Portal && (
                       <MessageBar
                         messageBarType={MessageBarType.warning}
@@ -513,6 +539,18 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                         operations
                       </MessageBar>
                     )}
+                    <div className={styles.settingsSectionDescription}>
+                      Choose Automatic to enable Entra ID RBAC automatically. True/False to force enable/disable Entra
+                      ID RBAC.
+                      <a
+                        href="https://learn.microsoft.com/en-us/azure/cosmos-db/how-to-setup-rbac#use-data-explorer"
+                        target="_blank"
+                        rel="noopener noreferrer"
+                      >
+                        {" "}
+                        Learn more{" "}
+                      </a>
+                    </div>
                     <ChoiceGroup
                       ariaLabelledBy="enableDataPlaneRBACOptions"
                       options={dataPlaneRBACOptionsList}
@@ -520,58 +558,23 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                       selectedKey={enableDataPlaneRBACOption}
                       onChange={handleOnDataPlaneRBACOptionChange}
                     />
-                </fieldset>
                   </div>
-            </div>
-          </>
+                </AccordionPanel>
+              </AccordionItem>
             )}
+
           {userContext.apiType === "SQL" && (
             <>
-            <div className="settingsSection">
-              <div className="settingsSectionPart">
-                <div>
-                  <legend id="ruThresholdLabel" className="settingsSectionLabel legendLabel">
-                    RU Threshold
-                  </legend>
-                  <InfoTooltip>If a query exceeds a configured RU threshold, the query will be aborted.</InfoTooltip>
-                </div>
-                <div>
-                  <Toggle
-                    styles={toggleStyles}
-                    label="Enable RU threshold"
-                    onChange={handleOnRUThresholdToggleChange}
-                    defaultChecked={ruThresholdEnabled}
-                  />
-                </div>
-                {ruThresholdEnabled && (
-                  <div>
-                    <SpinButton
-                      label="RU Threshold (RU)"
-                      labelPosition={Position.top}
-                      defaultValue={(ruThreshold || DefaultRUThreshold).toString()}
-                      min={1}
-                      step={1000}
-                      onChange={handleOnRUThresholdSpinButtonChange}
-                      incrementButtonAriaLabel="Increase value by 1000"
-                      decrementButtonAriaLabel="Decrease value by 1000"
-                      styles={spinButtonStyles}
-                    />
-                  </div>
-                )}
-              </div>
-            </div>
-            <div className="settingsSection">
-              <div className="settingsSectionPart">
-                <div>
-                  <legend id="queryTimeoutLabel" className="settingsSectionLabel legendLabel">
-                    Query Timeout
-                  </legend>
-                  <InfoTooltip>
+              <AccordionItem value="3">
+                <AccordionHeader>
+                  <div className={styles.header}>Query Timeout</div>
+                </AccordionHeader>
+                <AccordionPanel>
+                  <div className={styles.settingsSectionContainer}>
+                    <div className={styles.settingsSectionDescription}>
                       When a query reaches a specified time limit, a popup with an option to cancel the query will show
-                    unless automatic cancellation has been enabled
-                  </InfoTooltip>
+                      unless automatic cancellation has been enabled.
                     </div>
-                <div>
                     <Toggle
                       styles={toggleStyles}
                       label="Enable query timeout"
@@ -580,7 +583,7 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                     />
                   </div>
                   {queryTimeoutEnabled && (
-                  <div>
+                    <div className={styles.settingsSectionContainer}>
                       <SpinButton
                         label="Query timeout (ms)"
                         labelPosition={Position.top}
@@ -600,17 +603,52 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                       />
                     </div>
                   )}
+                </AccordionPanel>
+              </AccordionItem>
+
+              <AccordionItem value="4">
+                <AccordionHeader>
+                  <div className={styles.header}>RU Limit</div>
+                </AccordionHeader>
+                <AccordionPanel>
+                  <div className={styles.settingsSectionContainer}>
+                    <div className={styles.settingsSectionDescription}>
+                      If a query exceeds a configured RU limit, the query will be aborted.
                     </div>
+                    <Toggle
+                      styles={toggleStyles}
+                      label="Enable RU limit"
+                      onChange={handleOnRUThresholdToggleChange}
+                      defaultChecked={ruThresholdEnabled}
+                    />
                   </div>
-            <div className="settingsSection">
-              <div className="settingsSectionPart">
-                <div>
-                  <legend id="defaultQueryResultsView" className="settingsSectionLabel legendLabel">
-                    Default Query Results View
-                  </legend>
-                  <InfoTooltip>Select the default view to use when displaying query results.</InfoTooltip>
+                  {ruThresholdEnabled && (
+                    <div className={styles.settingsSectionContainer}>
+                      <SpinButton
+                        label="RU Limit (RU)"
+                        labelPosition={Position.top}
+                        defaultValue={(ruThreshold || DefaultRUThreshold).toString()}
+                        min={1}
+                        step={1000}
+                        onChange={handleOnRUThresholdSpinButtonChange}
+                        incrementButtonAriaLabel="Increase value by 1000"
+                        decrementButtonAriaLabel="Decrease value by 1000"
+                        styles={spinButtonStyles}
+                      />
+                    </div>
+                  )}
+                </AccordionPanel>
+              </AccordionItem>
+
+              <AccordionItem value="5">
+                <AccordionHeader>
+                  <div className={styles.header}>Default Query Results View</div>
+                </AccordionHeader>
+                <AccordionPanel>
+                  <div className={styles.settingsSectionContainer}>
+                    <div className={styles.settingsSectionDescription}>
+                      Select the default view to use when displaying query results.
                     </div>
-                <div>
                     <ChoiceGroup
                       ariaLabelledBy="defaultQueryResultsView"
                       selectedKey={defaultQueryResultsView}
@@ -619,21 +657,25 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                       onChange={handleOnDefaultQueryResultsViewChange}
                     />
                   </div>
-              </div>
-            </div>
+                </AccordionPanel>
+              </AccordionItem>
             </>
           )}
-        <div className="settingsSection">
-          <div className="settingsSectionPart">
-            <div className="settingsSectionLabel">
-              Retry Settings
-              <InfoTooltip>Retry policy associated with throttled requests during CosmosDB queries.</InfoTooltip>
+
+          <AccordionItem value="6">
+            <AccordionHeader>
+              <div className={styles.header}>Retry Settings</div>
+            </AccordionHeader>
+            <AccordionPanel>
+              <div className={styles.settingsSectionContainer}>
+                <div className={styles.settingsSectionDescription}>
+                  Retry policy associated with throttled requests during CosmosDB queries.
                 </div>
                 <div>
-              <legend id="queryRetryAttemptsLabel" className="settingsSectionLabel legendLabel">
-                Max retry attempts
-              </legend>
-              <InfoTooltip>Max number of retries to be performed for a request. Default value 9.</InfoTooltip>
+                  <span className={styles.subHeader}>Max retry attempts</span>
+                  <InfoTooltip className={styles.headerIcon}>
+                    Max number of retries to be performed for a request. Default value 9.
+                  </InfoTooltip>
                 </div>
                 <SpinButton
                   labelPosition={Position.top}
@@ -649,12 +691,10 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                   styles={spinButtonStyles}
                 />
                 <div>
-              <legend id="queryRetryAttemptsLabel" className="settingsSectionLabel legendLabel">
-                Fixed retry interval (ms)
-              </legend>
-              <InfoTooltip>
-                Fixed retry interval in milliseconds to wait between each retry ignoring the retryAfter returned as part
-                of the response. Default value is 0 milliseconds.
+                  <span className={styles.subHeader}>Fixed retry interval (ms)</span>
+                  <InfoTooltip className={styles.headerIcon}>
+                    Fixed retry interval in milliseconds to wait between each retry ignoring the retryAfter returned as
+                    part of the response. Default value is 0 milliseconds.
                   </InfoTooltip>
                 </div>
                 <SpinButton
@@ -671,10 +711,8 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                   styles={spinButtonStyles}
                 />
                 <div>
-              <legend id="queryRetryAttemptsLabel" className="settingsSectionLabel legendLabel">
-                Max wait time (s)
-              </legend>
-              <InfoTooltip>
+                  <span className={styles.subHeader}>Max wait time (s)</span>
+                  <InfoTooltip className={styles.headerIcon}>
                     Max wait time in seconds to wait for a request while the retries are happening. Default value 30
                     seconds.
                   </InfoTooltip>
@@ -693,14 +731,17 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                   styles={spinButtonStyles}
                 />
               </div>
-        </div>
-        <div className="settingsSection">
-          <div className="settingsSectionPart settingsSectionInlineCheckbox">
-            <div className="settingsSectionLabel">
-              Enable container pagination
-              <InfoTooltip>
+            </AccordionPanel>
+          </AccordionItem>
+
+          <AccordionItem value="7">
+            <AccordionHeader>
+              <div className={styles.header}>Enable container pagination</div>
+            </AccordionHeader>
+            <AccordionPanel>
+              <div className={styles.settingsSectionContainer}>
+                <div className={styles.settingsSectionDescription}>
                   Load 50 containers at a time. Currently, containers are not pulled in alphanumeric order.
-              </InfoTooltip>
                 </div>
                 <Checkbox
                   styles={{
@@ -710,20 +751,23 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                   ariaLabel="Enable container pagination"
                   checked={containerPaginationEnabled}
                   onChange={() => setContainerPaginationEnabled(!containerPaginationEnabled)}
+                  label="Enable container pagination"
                 />
               </div>
-        </div>
-        {shouldShowCrossPartitionOption && (
-          <div className="settingsSection">
-            <div className="settingsSectionPart settingsSectionInlineCheckbox">
-              <div className="settingsSectionLabel">
-                Enable cross-partition query
-                <InfoTooltip>
-                  Send more than one request while executing a query. More than one request is necessary if the query is
-                  not scoped to single partition key value.
-                </InfoTooltip>
-              </div>
+            </AccordionPanel>
+          </AccordionItem>
 
+          {shouldShowCrossPartitionOption && (
+            <AccordionItem value="8">
+              <AccordionHeader>
+                <div className={styles.header}>Enable cross-partition query</div>
+              </AccordionHeader>
+              <AccordionPanel>
+                <div className={styles.settingsSectionContainer}>
+                  <div className={styles.settingsSectionDescription}>
+                    Send more than one request while executing a query. More than one request is necessary if the query
+                    is not scoped to single partition key value.
+                  </div>
                   <Checkbox
                     styles={{
                       label: { padding: 0 },
@@ -732,22 +776,25 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                     ariaLabel="Enable cross partition query"
                     checked={crossPartitionQueryEnabled}
                     onChange={() => setCrossPartitionQueryEnabled(!crossPartitionQueryEnabled)}
+                    label="Enable cross-partition query"
                   />
                 </div>
-          </div>
+              </AccordionPanel>
+            </AccordionItem>
           )}
+
           {shouldShowParallelismOption && (
-          <div className="settingsSection">
-            <div className="settingsSectionPart">
-              <div className="settingsSectionLabel">
-                Max degree of parallelism
-                <InfoTooltip>
+            <AccordionItem value="9">
+              <AccordionHeader>
+                <div className={styles.header}>Max degree of parallelism</div>
+              </AccordionHeader>
+              <AccordionPanel>
+                <div className={styles.settingsSectionContainer}>
+                  <div className={styles.settingsSectionDescription}>
                     Gets or sets the number of concurrent operations run client side during parallel query execution. A
                     positive property value limits the number of concurrent operations to the set value. If it is set to
                     less than 0, the system automatically decides the number of concurrent operations to run.
-                </InfoTooltip>
                   </div>
-
                   <SpinButton
                     min={-1}
                     step={1}
@@ -755,26 +802,33 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                     role="textbox"
                     id="max-degree"
                     value={"" + maxDegreeOfParallelism}
-                onIncrement={(newValue) => setMaxDegreeOfParallelism(parseInt(newValue) + 1 || maxDegreeOfParallelism)}
-                onDecrement={(newValue) => setMaxDegreeOfParallelism(parseInt(newValue) - 1 || maxDegreeOfParallelism)}
+                    onIncrement={(newValue) =>
+                      setMaxDegreeOfParallelism(parseInt(newValue) + 1 || maxDegreeOfParallelism)
+                    }
+                    onDecrement={(newValue) =>
+                      setMaxDegreeOfParallelism(parseInt(newValue) - 1 || maxDegreeOfParallelism)
+                    }
                     onValidate={(newValue) => setMaxDegreeOfParallelism(parseInt(newValue) || maxDegreeOfParallelism)}
                     ariaLabel="Max degree of parallelism"
+                    label="Max degree of parallelism"
                   />
                 </div>
-          </div>
+              </AccordionPanel>
+            </AccordionItem>
           )}
+
           {shouldShowPriorityLevelOption && (
-          <div className="settingsSection">
-            <div className="settingsSectionPart">
-              <fieldset>
-                <legend id="priorityLevel" className="settingsSectionLabel legendLabel">
-                  Priority Level
-                </legend>
-                <InfoTooltip>
+            <AccordionItem value="10">
+              <AccordionHeader>
+                <div className={styles.header}>Priority Level</div>
+              </AccordionHeader>
+              <AccordionPanel>
+                <div className={styles.settingsSectionContainer}>
+                  <div className={styles.settingsSectionDescription}>
                     Sets the priority level for data-plane requests from Data Explorer when using Priority-Based
                     Execution. If &quot;None&quot; is selected, Data Explorer will not specify priority level, and the
                     server-side default priority level will be used.
-                </InfoTooltip>
+                  </div>
                   <ChoiceGroup
                     ariaLabelledBy="priorityLevel"
                     selectedKey={priorityLevel}
@@ -782,21 +836,22 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                     styles={choiceButtonStyles}
                     onChange={handleOnPriorityLevelOptionChange}
                   />
-              </fieldset>
-            </div>
                 </div>
+              </AccordionPanel>
+            </AccordionItem>
           )}
-        {shouldShowGraphAutoVizOption && (
-          <div className="settingsSection">
-            <div className="settingsSectionPart">
-              <div className="settingsSectionLabel">
-                Display Gremlin query results as:&nbsp;
-                <InfoTooltip>
-                  Select Graph to automatically visualize the query results as a Graph or JSON to display the results as
-                  JSON.
-                </InfoTooltip>
-              </div>
 
+          {shouldShowGraphAutoVizOption && (
+            <AccordionItem value="11">
+              <AccordionHeader>
+                <div className={styles.header}>Display Gremlin query results as:&nbsp;</div>
+              </AccordionHeader>
+              <AccordionPanel>
+                <div className={styles.settingsSectionContainer}>
+                  <div className={styles.settingsSectionDescription}>
+                    Select Graph to automatically visualize the query results as a Graph or JSON to display the results
+                    as JSON.
+                  </div>
                   <ChoiceGroup
                     selectedKey={graphAutoVizDisabled}
                     options={graphAutoOptionList}
@@ -804,20 +859,22 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                     aria-label="Graph Auto-visualization"
                   />
                 </div>
-          </div>
+              </AccordionPanel>
+            </AccordionItem>
           )}
-        {shouldShowCopilotSampleDBOption && (
-          <div className="settingsSection">
-            <div className="settingsSectionPart settingsSectionInlineCheckbox">
-              <div className="settingsSectionLabel">
-                Enable sample database
-                <InfoTooltip>
-                  This is a sample database and collection with synthetic product data you can use to explore using
-                  NoSQL queries and Query Advisor. This will appear as another database in the Data Explorer UI, and is
-                  created by, and maintained by Microsoft at no cost to you.
-                </InfoTooltip>
-              </div>
 
+          {shouldShowCopilotSampleDBOption && (
+            <AccordionItem value="12">
+              <AccordionHeader>
+                <div className={styles.header}>Enable sample database</div>
+              </AccordionHeader>
+              <AccordionPanel>
+                <div className={styles.settingsSectionContainer}>
+                  <div className={styles.settingsSectionDescription}>
+                    This is a sample database and collection with synthetic product data you can use to explore using
+                    NoSQL queries and Query Advisor. This will appear as another database in the Data Explorer UI, and
+                    is created by, and maintained by Microsoft at no cost to you.
+                  </div>
                   <Checkbox
                     styles={{
                       label: { padding: 0 },
@@ -826,10 +883,42 @@ export const SettingsPane: FunctionComponent<{ explorer: Explorer }> = ({
                     ariaLabel="Enable sample db for Query Advisor"
                     checked={copilotSampleDBEnabled}
                     onChange={handleSampleDatabaseChange}
+                    label="Enable sample database"
                   />
                 </div>
-          </div>
+              </AccordionPanel>
+            </AccordionItem>
           )}
+        </Accordion>
+
+        <div className="settingsSection">
+          <div className="settingsSectionPart">
+            <DefaultButton
+              onClick={() => {
+                useDialog.getState().showOkCancelModalDialog(
+                  "Clear History",
+                  undefined,
+                  "Are you sure you want to proceed?",
+                  () => deleteAllStates(),
+                  "Cancel",
+                  undefined,
+                  <>
+                    <span>
+                      This action will clear the all customizations for this account in this browser, including:
+                    </span>
+                    <ul className={styles.bulletList}>
+                      <li>Reset your customized tab layout, including the splitter positions</li>
+                      <li>Erase your table column preferences, including any custom columns</li>
+                      <li>Clear your filter history</li>
+                    </ul>
+                  </>,
+                );
+              }}
+            >
+              Clear History
+            </DefaultButton>
+          </div>
+        </div>
         <div className="settingsSection">
           <div className="settingsSectionPart">
             <div className="settingsSectionLabel">Explorer Version</div>

src/Explorer/Panes/SettingsPane/__snapshots__/SettingsPane.test.tsx.snap

@@ -8,24 +8,30 @@ exports[`Settings Pane should render Default properly 1`] = `
   submitButtonText="Apply"
 >
   <div
-    className="paneMainContent"
+    className="paneMainContent ___133e6fg_0000000 f22iagw f1vx9l62 f1l02sjl"
   >
+    <Accordion
+      className="___1uf6361_0000000 fz7g6wx"
+    >
+      <AccordionItem
+        value="1"
+      >
+        <AccordionHeader>
           <div
-      className="settingsSection"
-    >
-      <div
-        className="settingsSectionPart"
-      >
-        <fieldset>
-          <legend
-            className="settingsSectionLabel legendLabel"
-            id="pageOptions"
+            className="___15c001r_0000000 fq02s40"
           >
             Page Options
-          </legend>
-          <InfoTooltip>
+          </div>
+        </AccordionHeader>
+        <AccordionPanel>
+          <div
+            className="___1dfa554_0000000 fo7qwa0"
+          >
+            <div
+              className="___10gar1i_0000000 f1fow5ox f1ugzwwg"
+            >
               Choose Custom to specify a fixed amount of query results to show, or choose Unlimited to show as many query results per page.
-          </InfoTooltip>
+            </div>
             <StyledChoiceGroup
               ariaLabelledBy="pageOptions"
               onChange={[Function]}
@@ -66,19 +72,21 @@ exports[`Settings Pane should render Default properly 1`] = `
                 }
               }
             />
-        </fieldset>
           </div>
           <div
-        className="tabs settingsSectionPart"
+            className="tabs ___1dfa554_0000000 fo7qwa0"
           >
             <div
               className="tabcontent"
             >
               <div
-            className="settingsSectionLabel"
+                className="___10gar1i_0000000 f1fow5ox f1ugzwwg"
               >
                 Query results per page
-            <InfoTooltip>
+                 
+                <InfoTooltip
+                  className="___vtc5hy0_0000000 f10ra9hq f1k6fduh"
+                >
                   Enter the number of query results that should be shown per page.
                 </InfoTooltip>
               </div>
@@ -96,28 +104,30 @@ exports[`Settings Pane should render Default properly 1`] = `
               />
             </div>
           </div>
-    </div>
+        </AccordionPanel>
+      </AccordionItem>
+      <AccordionItem
+        value="3"
+      >
+        <AccordionHeader>
           <div
-      className="settingsSection"
+            className="___15c001r_0000000 fq02s40"
+          >
+            Query Timeout
+          </div>
+        </AccordionHeader>
+        <AccordionPanel>
+          <div
+            className="___1dfa554_0000000 fo7qwa0"
           >
             <div
-        className="settingsSectionPart"
+              className="___10gar1i_0000000 f1fow5ox f1ugzwwg"
             >
-        <div>
-          <legend
-            className="settingsSectionLabel legendLabel"
-            id="ruThresholdLabel"
-          >
-            RU Threshold
-          </legend>
-          <InfoTooltip>
-            If a query exceeds a configured RU threshold, the query will be aborted.
-          </InfoTooltip>
+              When a query reaches a specified time limit, a popup with an option to cancel the query will show unless automatic cancellation has been enabled.
             </div>
-        <div>
             <StyledToggleBase
-            defaultChecked={true}
-            label="Enable RU threshold"
+              defaultChecked={false}
+              label="Enable query timeout"
               onChange={[Function]}
               styles={
                 {
@@ -135,12 +145,55 @@ exports[`Settings Pane should render Default properly 1`] = `
               }
             />
           </div>
-        <div>
+        </AccordionPanel>
+      </AccordionItem>
+      <AccordionItem
+        value="4"
+      >
+        <AccordionHeader>
+          <div
+            className="___15c001r_0000000 fq02s40"
+          >
+            RU Limit
+          </div>
+        </AccordionHeader>
+        <AccordionPanel>
+          <div
+            className="___1dfa554_0000000 fo7qwa0"
+          >
+            <div
+              className="___10gar1i_0000000 f1fow5ox f1ugzwwg"
+            >
+              If a query exceeds a configured RU limit, the query will be aborted.
+            </div>
+            <StyledToggleBase
+              defaultChecked={true}
+              label="Enable RU limit"
+              onChange={[Function]}
+              styles={
+                {
+                  "container": {},
+                  "label": {
+                    "display": "block",
+                    "fontSize": 12,
+                    "fontWeight": 400,
+                  },
+                  "pill": {},
+                  "root": {},
+                  "text": {},
+                  "thumb": {},
+                }
+              }
+            />
+          </div>
+          <div
+            className="___1dfa554_0000000 fo7qwa0"
+          >
             <StyledSpinButton
               decrementButtonAriaLabel="Decrease value by 1000"
               defaultValue="5000"
               incrementButtonAriaLabel="Increase value by 1000"
-            label="RU Threshold (RU)"
+              label="RU Limit (RU)"
               labelPosition={0}
               min={1}
               onChange={[Function]}
@@ -163,66 +216,27 @@ exports[`Settings Pane should render Default properly 1`] = `
               }
             />
           </div>
-      </div>
-    </div>
+        </AccordionPanel>
+      </AccordionItem>
+      <AccordionItem
+        value="5"
+      >
+        <AccordionHeader>
           <div
-      className="settingsSection"
-    >
-      <div
-        className="settingsSectionPart"
-      >
-        <div>
-          <legend
-            className="settingsSectionLabel legendLabel"
-            id="queryTimeoutLabel"
-          >
-            Query Timeout
-          </legend>
-          <InfoTooltip>
-            When a query reaches a specified time limit, a popup with an option to cancel the query will show unless automatic cancellation has been enabled
-          </InfoTooltip>
-        </div>
-        <div>
-          <StyledToggleBase
-            defaultChecked={false}
-            label="Enable query timeout"
-            onChange={[Function]}
-            styles={
-              {
-                "container": {},
-                "label": {
-                  "display": "block",
-                  "fontSize": 12,
-                  "fontWeight": 400,
-                },
-                "pill": {},
-                "root": {},
-                "text": {},
-                "thumb": {},
-              }
-            }
-          />
-        </div>
-      </div>
-    </div>
-    <div
-      className="settingsSection"
-    >
-      <div
-        className="settingsSectionPart"
-      >
-        <div>
-          <legend
-            className="settingsSectionLabel legendLabel"
-            id="defaultQueryResultsView"
+            className="___15c001r_0000000 fq02s40"
           >
             Default Query Results View
-          </legend>
-          <InfoTooltip>
-            Select the default view to use when displaying query results.
-          </InfoTooltip>
           </div>
-        <div>
+        </AccordionHeader>
+        <AccordionPanel>
+          <div
+            className="___1dfa554_0000000 fo7qwa0"
+          >
+            <div
+              className="___10gar1i_0000000 f1fow5ox f1ugzwwg"
+            >
+              Select the default view to use when displaying query results.
+            </div>
             <StyledChoiceGroup
               ariaLabelledBy="defaultQueryResultsView"
               onChange={[Function]}
@@ -238,7 +252,7 @@ exports[`Settings Pane should render Default properly 1`] = `
                   },
                 ]
               }
-            selectedKey="vertical"
+              selectedKey="horizontal"
               styles={
                 {
                   "flexContainer": [
@@ -264,30 +278,36 @@ exports[`Settings Pane should render Default properly 1`] = `
               }
             />
           </div>
-      </div>
-    </div>
-    <div
-      className="settingsSection"
+        </AccordionPanel>
+      </AccordionItem>
+      <AccordionItem
+        value="6"
       >
+        <AccordionHeader>
           <div
-        className="settingsSectionPart"
-      >
-        <div
-          className="settingsSectionLabel"
+            className="___15c001r_0000000 fq02s40"
           >
             Retry Settings
-          <InfoTooltip>
+          </div>
+        </AccordionHeader>
+        <AccordionPanel>
+          <div
+            className="___1dfa554_0000000 fo7qwa0"
+          >
+            <div
+              className="___10gar1i_0000000 f1fow5ox f1ugzwwg"
+            >
               Retry policy associated with throttled requests during CosmosDB queries.
-          </InfoTooltip>
             </div>
             <div>
-          <legend
-            className="settingsSectionLabel legendLabel"
-            id="queryRetryAttemptsLabel"
+              <span
+                className="___zls1px0_0000000 fq02s40 f1ugzwwg"
               >
                 Max retry attempts
-          </legend>
-          <InfoTooltip>
+              </span>
+              <InfoTooltip
+                className="___vtc5hy0_0000000 f10ra9hq f1k6fduh"
+              >
                 Max number of retries to be performed for a request. Default value 9.
               </InfoTooltip>
             </div>
@@ -320,13 +340,14 @@ exports[`Settings Pane should render Default properly 1`] = `
               value="9"
             />
             <div>
-          <legend
-            className="settingsSectionLabel legendLabel"
-            id="queryRetryAttemptsLabel"
+              <span
+                className="___zls1px0_0000000 fq02s40 f1ugzwwg"
               >
                 Fixed retry interval (ms)
-          </legend>
-          <InfoTooltip>
+              </span>
+              <InfoTooltip
+                className="___vtc5hy0_0000000 f10ra9hq f1k6fduh"
+              >
                 Fixed retry interval in milliseconds to wait between each retry ignoring the retryAfter returned as part of the response. Default value is 0 milliseconds.
               </InfoTooltip>
             </div>
@@ -359,13 +380,14 @@ exports[`Settings Pane should render Default properly 1`] = `
               value="0"
             />
             <div>
-          <legend
-            className="settingsSectionLabel legendLabel"
-            id="queryRetryAttemptsLabel"
+              <span
+                className="___zls1px0_0000000 fq02s40 f1ugzwwg"
               >
                 Max wait time (s)
-          </legend>
-          <InfoTooltip>
+              </span>
+              <InfoTooltip
+                className="___vtc5hy0_0000000 f10ra9hq f1k6fduh"
+              >
                 Max wait time in seconds to wait for a request while the retries are happening. Default value 30 seconds.
               </InfoTooltip>
             </div>
@@ -398,25 +420,32 @@ exports[`Settings Pane should render Default properly 1`] = `
               value="30"
             />
           </div>
-    </div>
-    <div
-      className="settingsSection"
+        </AccordionPanel>
+      </AccordionItem>
+      <AccordionItem
+        value="7"
       >
+        <AccordionHeader>
           <div
-        className="settingsSectionPart settingsSectionInlineCheckbox"
-      >
-        <div
-          className="settingsSectionLabel"
+            className="___15c001r_0000000 fq02s40"
           >
             Enable container pagination
-          <InfoTooltip>
+          </div>
+        </AccordionHeader>
+        <AccordionPanel>
+          <div
+            className="___1dfa554_0000000 fo7qwa0"
+          >
+            <div
+              className="___10gar1i_0000000 f1fow5ox f1ugzwwg"
+            >
               Load 50 containers at a time. Currently, containers are not pulled in alphanumeric order.
-          </InfoTooltip>
             </div>
             <StyledCheckboxBase
               ariaLabel="Enable container pagination"
               checked={false}
               className="padding"
+              label="Enable container pagination"
               onChange={[Function]}
               styles={
                 {
@@ -427,25 +456,32 @@ exports[`Settings Pane should render Default properly 1`] = `
               }
             />
           </div>
-    </div>
-    <div
-      className="settingsSection"
+        </AccordionPanel>
+      </AccordionItem>
+      <AccordionItem
+        value="8"
       >
+        <AccordionHeader>
           <div
-        className="settingsSectionPart settingsSectionInlineCheckbox"
-      >
-        <div
-          className="settingsSectionLabel"
+            className="___15c001r_0000000 fq02s40"
           >
             Enable cross-partition query
-          <InfoTooltip>
+          </div>
+        </AccordionHeader>
+        <AccordionPanel>
+          <div
+            className="___1dfa554_0000000 fo7qwa0"
+          >
+            <div
+              className="___10gar1i_0000000 f1fow5ox f1ugzwwg"
+            >
               Send more than one request while executing a query. More than one request is necessary if the query is not scoped to single partition key value.
-          </InfoTooltip>
             </div>
             <StyledCheckboxBase
               ariaLabel="Enable cross partition query"
               checked={false}
               className="padding"
+              label="Enable cross-partition query"
               onChange={[Function]}
               styles={
                 {
@@ -456,25 +492,32 @@ exports[`Settings Pane should render Default properly 1`] = `
               }
             />
           </div>
-    </div>
-    <div
-      className="settingsSection"
+        </AccordionPanel>
+      </AccordionItem>
+      <AccordionItem
+        value="9"
       >
+        <AccordionHeader>
           <div
-        className="settingsSectionPart"
-      >
-        <div
-          className="settingsSectionLabel"
+            className="___15c001r_0000000 fq02s40"
           >
             Max degree of parallelism
-          <InfoTooltip>
+          </div>
+        </AccordionHeader>
+        <AccordionPanel>
+          <div
+            className="___1dfa554_0000000 fo7qwa0"
+          >
+            <div
+              className="___10gar1i_0000000 f1fow5ox f1ugzwwg"
+            >
               Gets or sets the number of concurrent operations run client side during parallel query execution. A positive property value limits the number of concurrent operations to the set value. If it is set to less than 0, the system automatically decides the number of concurrent operations to run.
-          </InfoTooltip>
             </div>
             <StyledSpinButton
               ariaLabel="Max degree of parallelism"
               className="textfontclr"
               id="max-degree"
+              label="Max degree of parallelism"
               min={-1}
               onDecrement={[Function]}
               onIncrement={[Function]}
@@ -484,6 +527,21 @@ exports[`Settings Pane should render Default properly 1`] = `
               value="6"
             />
           </div>
+        </AccordionPanel>
+      </AccordionItem>
+    </Accordion>
+    <div
+      className="settingsSection"
+    >
+      <div
+        className="settingsSectionPart"
+      >
+        <CustomizedDefaultButton
+          onClick={[Function]}
+        >
+          Clear History
+        </CustomizedDefaultButton>
+      </div>
     </div>
     <div
       className="settingsSection"
@@ -511,30 +569,39 @@ exports[`Settings Pane should render Gremlin properly 1`] = `
   submitButtonText="Apply"
 >
   <div
-    className="paneMainContent"
+    className="paneMainContent ___133e6fg_0000000 f22iagw f1vx9l62 f1l02sjl"
   >
-    <div
-      className="settingsSection"
+    <Accordion
+      className="___1uf6361_0000000 fz7g6wx"
     >
-      <div
-        className="settingsSectionPart"
+      <AccordionItem
+        value="6"
       >
+        <AccordionHeader>
           <div
-          className="settingsSectionLabel"
+            className="___15c001r_0000000 fq02s40"
           >
             Retry Settings
-          <InfoTooltip>
+          </div>
+        </AccordionHeader>
+        <AccordionPanel>
+          <div
+            className="___1dfa554_0000000 fo7qwa0"
+          >
+            <div
+              className="___10gar1i_0000000 f1fow5ox f1ugzwwg"
+            >
               Retry policy associated with throttled requests during CosmosDB queries.
-          </InfoTooltip>
             </div>
             <div>
-          <legend
-            className="settingsSectionLabel legendLabel"
-            id="queryRetryAttemptsLabel"
+              <span
+                className="___zls1px0_0000000 fq02s40 f1ugzwwg"
               >
                 Max retry attempts
-          </legend>
-          <InfoTooltip>
+              </span>
+              <InfoTooltip
+                className="___vtc5hy0_0000000 f10ra9hq f1k6fduh"
+              >
                 Max number of retries to be performed for a request. Default value 9.
               </InfoTooltip>
             </div>
@@ -567,13 +634,14 @@ exports[`Settings Pane should render Gremlin properly 1`] = `
               value="9"
             />
             <div>
-          <legend
-            className="settingsSectionLabel legendLabel"
-            id="queryRetryAttemptsLabel"
+              <span
+                className="___zls1px0_0000000 fq02s40 f1ugzwwg"
               >
                 Fixed retry interval (ms)
-          </legend>
-          <InfoTooltip>
+              </span>
+              <InfoTooltip
+                className="___vtc5hy0_0000000 f10ra9hq f1k6fduh"
+              >
                 Fixed retry interval in milliseconds to wait between each retry ignoring the retryAfter returned as part of the response. Default value is 0 milliseconds.
               </InfoTooltip>
             </div>
@@ -606,13 +674,14 @@ exports[`Settings Pane should render Gremlin properly 1`] = `
               value="0"
             />
             <div>
-          <legend
-            className="settingsSectionLabel legendLabel"
-            id="queryRetryAttemptsLabel"
+              <span
+                className="___zls1px0_0000000 fq02s40 f1ugzwwg"
               >
                 Max wait time (s)
-          </legend>
-          <InfoTooltip>
+              </span>
+              <InfoTooltip
+                className="___vtc5hy0_0000000 f10ra9hq f1k6fduh"
+              >
                 Max wait time in seconds to wait for a request while the retries are happening. Default value 30 seconds.
               </InfoTooltip>
             </div>
@@ -645,25 +714,32 @@ exports[`Settings Pane should render Gremlin properly 1`] = `
               value="30"
             />
           </div>
-    </div>
-    <div
-      className="settingsSection"
+        </AccordionPanel>
+      </AccordionItem>
+      <AccordionItem
+        value="7"
       >
+        <AccordionHeader>
           <div
-        className="settingsSectionPart settingsSectionInlineCheckbox"
-      >
-        <div
-          className="settingsSectionLabel"
+            className="___15c001r_0000000 fq02s40"
           >
             Enable container pagination
-          <InfoTooltip>
+          </div>
+        </AccordionHeader>
+        <AccordionPanel>
+          <div
+            className="___1dfa554_0000000 fo7qwa0"
+          >
+            <div
+              className="___10gar1i_0000000 f1fow5ox f1ugzwwg"
+            >
               Load 50 containers at a time. Currently, containers are not pulled in alphanumeric order.
-          </InfoTooltip>
             </div>
             <StyledCheckboxBase
               ariaLabel="Enable container pagination"
               checked={false}
               className="padding"
+              label="Enable container pagination"
               onChange={[Function]}
               styles={
                 {
@@ -674,20 +750,26 @@ exports[`Settings Pane should render Gremlin properly 1`] = `
               }
             />
           </div>
-    </div>
-    <div
-      className="settingsSection"
+        </AccordionPanel>
+      </AccordionItem>
+      <AccordionItem
+        value="11"
       >
+        <AccordionHeader>
           <div
-        className="settingsSectionPart"
-      >
-        <div
-          className="settingsSectionLabel"
+            className="___15c001r_0000000 fq02s40"
           >
             Display Gremlin query results as: 
-          <InfoTooltip>
+          </div>
+        </AccordionHeader>
+        <AccordionPanel>
+          <div
+            className="___1dfa554_0000000 fo7qwa0"
+          >
+            <div
+              className="___10gar1i_0000000 f1fow5ox f1ugzwwg"
+            >
               Select Graph to automatically visualize the query results as a Graph or JSON to display the results as JSON.
-          </InfoTooltip>
             </div>
             <StyledChoiceGroup
               aria-label="Graph Auto-visualization"
@@ -707,6 +789,21 @@ exports[`Settings Pane should render Gremlin properly 1`] = `
               selectedKey="false"
             />
           </div>
+        </AccordionPanel>
+      </AccordionItem>
+    </Accordion>
+    <div
+      className="settingsSection"
+    >
+      <div
+        className="settingsSectionPart"
+      >
+        <CustomizedDefaultButton
+          onClick={[Function]}
+        >
+          Clear History
+        </CustomizedDefaultButton>
+      </div>
     </div>
     <div
       className="settingsSection"

src/Explorer/Panes/TableColumnSelectionPane/TableColumnSelectionPane.tsx

@@ -0,0 +1,156 @@
+import {
+  Button,
+  Checkbox,
+  CheckboxOnChangeData,
+  InputOnChangeData,
+  makeStyles,
+  SearchBox,
+  SearchBoxChangeEvent,
+  Text,
+} from "@fluentui/react-components";
+import { configContext } from "ConfigContext";
+import { ColumnDefinition } from "Explorer/Tabs/DocumentsTabV2/DocumentsTableComponent";
+import { CosmosFluentProvider, getPlatformTheme } from "Explorer/Theme/ThemeUtil";
+import React from "react";
+import { useSidePanel } from "../../../hooks/useSidePanel";
+
+const useColumnSelectionStyles = makeStyles({
+  paneContainer: {
+    height: "100%",
+    display: "flex",
+  },
+  searchBox: {
+    width: "100%",
+  },
+  checkboxContainer: {
+    display: "flex",
+    flexDirection: "column",
+    flex: 1,
+  },
+  checkboxLabel: {
+    padding: "4px 8px",
+    marginBottom: "0px",
+  },
+});
+export interface TableColumnSelectionPaneProps {
+  columnDefinitions: ColumnDefinition[];
+  selectedColumnIds: string[];
+  onSelectionChange: (newSelectedColumnIds: string[]) => void;
+  defaultSelection: string[];
+}
+
+export const TableColumnSelectionPane: React.FC<TableColumnSelectionPaneProps> = ({
+  columnDefinitions,
+  selectedColumnIds,
+  onSelectionChange,
+  defaultSelection,
+}: TableColumnSelectionPaneProps): JSX.Element => {
+  const closeSidePanel = useSidePanel((state) => state.closeSidePanel);
+  const originalSelectedColumnIds = React.useMemo(() => selectedColumnIds, []);
+  const [columnSearchText, setColumnSearchText] = React.useState<string>("");
+  const [newSelectedColumnIds, setNewSelectedColumnIds] = React.useState<string[]>(originalSelectedColumnIds);
+  const styles = useColumnSelectionStyles();
+
+  const selectedColumnIdsSet = new Set(newSelectedColumnIds);
+  const onCheckedValueChange = (id: string, checkedData?: CheckboxOnChangeData): void => {
+    const checked = checkedData?.checked;
+    if (checked === "mixed" || checked === undefined) {
+      return;
+    }
+
+    if (checked) {
+      selectedColumnIdsSet.add(id);
+    } else {
+      /* selectedColumnIds may contain ids that are not in columnDefinitions, because the selected
+       * ids may have been loaded from persistence, but don't exist in the current retrieved documents.
+       */
+
+      if (
+        Array.from(selectedColumnIdsSet).filter((id) => columnDefinitions.find((def) => def.id === id) !== undefined)
+          .length === 1 &&
+        selectedColumnIdsSet.has(id)
+      ) {
+        // Don't allow unchecking the last column
+        return;
+      }
+      selectedColumnIdsSet.delete(id);
+    }
+    setNewSelectedColumnIds([...selectedColumnIdsSet]);
+  };
+
+  const onSave = (): void => {
+    onSelectionChange(newSelectedColumnIds);
+    closeSidePanel();
+  };
+
+  const onSearchChange: (event: SearchBoxChangeEvent, data: InputOnChangeData) => void = (_, data) =>
+    // eslint-disable-next-line react/prop-types
+    setColumnSearchText(data.value);
+
+  const theme = getPlatformTheme(configContext.platform);
+
+  // Filter and move partition keys to the top
+  const columnDefinitionList = columnDefinitions
+    .filter((def) => !columnSearchText || def.label.toLowerCase().includes(columnSearchText.toLowerCase()))
+    .sort((a, b) => {
+      const ID = "id";
+      // "id" always at the top, then partition keys, then everything else sorted
+      if (a.id === ID) {
+        return b.id === ID ? 0 : -1;
+      } else if (b.id === ID) {
+        return a.id === ID ? 0 : 1;
+      } else if (a.isPartitionKey && !b.isPartitionKey) {
+        return -1;
+      } else if (b.isPartitionKey && !a.isPartitionKey) {
+        return 1;
+      } else {
+        return a.label.localeCompare(b.label);
+      }
+    });
+
+  return (
+    <div className={styles.paneContainer}>
+      <CosmosFluentProvider>
+        <div className="panelFormWrapper">
+          <div className="panelMainContent" style={{ display: "flex", flexDirection: "column" }}>
+            <Text>Select which columns to display in your view of items in your container.</Text>
+            <div /* Wrap <SearchBox> to avoid margin-bottom set by panelMainContent css */>
+              <SearchBox
+                className={styles.searchBox}
+                value={columnSearchText}
+                onChange={onSearchChange}
+                placeholder="Search fields"
+              />
+            </div>
+
+            <div className={styles.checkboxContainer}>
+              {columnDefinitionList.map((columnDefinition) => (
+                <Checkbox
+                  style={{ marginBottom: 0 }}
+                  key={columnDefinition.id}
+                  label={{
+                    className: styles.checkboxLabel,
+                    children: `${columnDefinition.label}${columnDefinition.isPartitionKey ? " (partition key)" : ""}`,
+                  }}
+                  checked={selectedColumnIdsSet.has(columnDefinition.id)}
+                  onChange={(_, data) => onCheckedValueChange(columnDefinition.id, data)}
+                />
+              ))}
+            </div>
+            <Button appearance="secondary" size="small" onClick={() => setNewSelectedColumnIds(defaultSelection)}>
+              Reset
+            </Button>
+          </div>
+          <div className="panelFooter" style={{ display: "flex", gap: theme.spacingHorizontalS }}>
+            <Button appearance="primary" onClick={onSave}>
+              Save
+            </Button>
+            <Button appearance="secondary" onClick={closeSidePanel}>
+              Cancel
+            </Button>
+          </div>
+        </div>
+      </CosmosFluentProvider>
+    </div>
+  );
+};

src/Explorer/QueryCopilot/CopilotCarousel.tsx

@@ -171,7 +171,7 @@ export const QueryCopilotCarousel: React.FC<QueryCopilotCarouselProps> = ({
               the query builder.
             </Text>
             <Text style={{ fontSize: 13, fontWeight: 600, marginTop: 24 }}>Database Id</Text>
-            <Text style={{ fontSize: 13 }}>CopilotSampleDb</Text>
+            <Text style={{ fontSize: 13 }}>CopilotSampleDB</Text>
             <Text style={{ fontSize: 13, fontWeight: 600, marginTop: 16 }}>Database throughput (autoscale)</Text>
             <Text style={{ fontSize: 13 }}>Autoscale</Text>
             <Text style={{ fontSize: 13, fontWeight: 600, marginTop: 16 }}>Database Max RU/s</Text>

src/Explorer/QueryCopilot/QueryCopilotContext.tsx

@@ -1,4 +1,5 @@
 import { MinimalQueryIterator } from "Common/IteratorUtilities";
+import QueryError from "Common/QueryError";
 import { QueryResults } from "Contracts/ViewModels";
 import { CopilotMessage } from "Explorer/QueryCopilot/Shared/QueryCopilotInterfaces";
 import { guid } from "Explorer/Tables/Utilities";
@@ -28,7 +29,7 @@ const CopilotProvider = ({ children }: { children: React.ReactNode }): JSX.Eleme
       showSamplePrompts: false,
       queryIterator: undefined,
       queryResults: undefined,
-      errorMessage: "",
+      errors: [],
       isSamplePromptsOpen: false,
       showPromptTeachingBubble: true,
       showDeletePopup: false,
@@ -64,7 +65,7 @@ const CopilotProvider = ({ children }: { children: React.ReactNode }): JSX.Eleme
       setShowSamplePrompts: (showSamplePrompts: boolean) => set({ showSamplePrompts }),
       setQueryIterator: (queryIterator: MinimalQueryIterator | undefined) => set({ queryIterator }),
       setQueryResults: (queryResults: QueryResults | undefined) => set({ queryResults }),
-      setErrorMessage: (errorMessage: string) => set({ errorMessage }),
+      setErrors: (errors: QueryError[]) => set({ errors }),
       setIsSamplePromptsOpen: (isSamplePromptsOpen: boolean) => set({ isSamplePromptsOpen }),
       setShowPromptTeachingBubble: (showPromptTeachingBubble: boolean) => set({ showPromptTeachingBubble }),
       setShowDeletePopup: (showDeletePopup: boolean) => set({ showDeletePopup }),

src/Explorer/QueryCopilot/QueryCopilotPromptbar.tsx

@@ -18,8 +18,9 @@ import {
   Text,
   TextField,
 } from "@fluentui/react";
-import { HttpStatusCodes } from "Common/Constants";
+import { HttpStatusCodes, NormalizedEventKey } from "Common/Constants";
 import { handleError } from "Common/ErrorHandlingUtils";
+import QueryError, { QueryErrorSeverity } from "Common/QueryError";
 import { createUri } from "Common/UrlUtility";
 import { CopyPopup } from "Explorer/QueryCopilot/Popup/CopyPopup";
 import { DeletePopup } from "Explorer/QueryCopilot/Popup/DeletePopup";
@@ -27,6 +28,8 @@ import {
   SuggestedPrompt,
   getSampleDatabaseSuggestedPrompts,
   getSuggestedPrompts,
+  readPromptHistory,
+  savePromptHistory,
 } from "Explorer/QueryCopilot/QueryCopilotUtilities";
 import { SubmitFeedback, allocatePhoenixContainer } from "Explorer/QueryCopilot/Shared/QueryCopilotClient";
 import { GenerateSQLQueryResponse, QueryCopilotProps } from "Explorer/QueryCopilot/Shared/QueryCopilotInterfaces";
@@ -34,7 +37,7 @@ import { SamplePrompts, SamplePromptsProps } from "Explorer/QueryCopilot/Shared/
 import { Action } from "Shared/Telemetry/TelemetryConstants";
 import { userContext } from "UserContext";
 import { useQueryCopilot } from "hooks/useQueryCopilot";
-import React, { useRef, useState } from "react";
+import React, { useMemo, useRef, useState } from "react";
 import HintIcon from "../../../images/Hint.svg";
 import RecentIcon from "../../../images/Recent.svg";
 import errorIcon from "../../../images/close-black.svg";
@@ -70,6 +73,8 @@ export const QueryCopilotPromptbar: React.FC<QueryCopilotPromptProps> = ({
 }: QueryCopilotPromptProps): JSX.Element => {
   const [copilotTeachingBubbleVisible, setCopilotTeachingBubbleVisible] = useState<boolean>(false);
   const inputEdited = useRef(false);
+  const itemRefs = useRef([]);
+  const searchInputRef = useRef(null);
   const {
     openFeedbackModal,
     hideFeedbackModalForLikedQueries,
@@ -105,10 +110,10 @@ export const QueryCopilotPromptbar: React.FC<QueryCopilotPromptProps> = ({
     setShowErrorMessageBar,
     setGeneratedQueryComments,
     setQueryResults,
-    setErrorMessage,
-    errorMessage,
+    setErrors,
+    errors,
   } = useCopilotStore();
-
+  const [focusedIndex, setFocusedIndex] = useState(-1);
   const sampleProps: SamplePromptsProps = {
     isSamplePromptsOpen: isSamplePromptsOpen,
     setIsSamplePromptsOpen: setIsSamplePromptsOpen,
@@ -133,14 +138,13 @@ export const QueryCopilotPromptbar: React.FC<QueryCopilotPromptProps> = ({
   };
 
   const isSampleCopilotActive = useSelectedNode.getState().isQueryCopilotCollectionSelected();
-  const cachedHistoriesString = localStorage.getItem(`${userContext.databaseAccount?.id}-queryCopilotHistories`);
-  const cachedHistories = cachedHistoriesString?.split("|");
-  const [histories, setHistories] = useState<string[]>(cachedHistories || []);
+  const [histories, setHistories] = useState<string[]>(() => readPromptHistory(userContext.databaseAccount));
   const suggestedPrompts: SuggestedPrompt[] = isSampleCopilotActive
     ? getSampleDatabaseSuggestedPrompts()
     : getSuggestedPrompts();
   const [filteredHistories, setFilteredHistories] = useState<string[]>(histories);
   const [filteredSuggestedPrompts, setFilteredSuggestedPrompts] = useState<SuggestedPrompt[]>(suggestedPrompts);
+  const { UpArrow, DownArrow, Enter } = NormalizedEventKey;
 
   const handleUserPromptChange = (event: React.ChangeEvent<HTMLInputElement>) => {
     inputEdited.current = true;
@@ -168,7 +172,7 @@ export const QueryCopilotPromptbar: React.FC<QueryCopilotPromptProps> = ({
     const newHistories = [formattedUserPrompt, ...updatedHistories.slice(0, 2)];
 
     setHistories(newHistories);
-    localStorage.setItem(`${userContext.databaseAccount.id}-queryCopilotHistories`, newHistories.join("|"));
+    savePromptHistory(userContext.databaseAccount, newHistories);
   };
 
   const resetMessageStates = (): void => {
@@ -179,7 +183,7 @@ export const QueryCopilotPromptbar: React.FC<QueryCopilotPromptProps> = ({
 
   const resetQueryResults = (): void => {
     setQueryResults(null);
-    setErrorMessage("");
+    setErrors([]);
   };
 
   const generateSQLQuery = async (): Promise<void> => {
@@ -243,7 +247,12 @@ export const QueryCopilotPromptbar: React.FC<QueryCopilotPromptProps> = ({
         handleError(JSON.stringify(generateSQLQueryResponse), "copilotTooManyRequestError");
         useTabs.getState().setIsQueryErrorThrown(true);
         setShowErrorMessageBar(true);
-        setErrorMessage("Ratelimit exceeded 5 per 1 minute. Please try again after sometime");
+        setErrors([
+          new QueryError(
+            "Ratelimit exceeded 5 per 1 minute. Please try again after sometime",
+            QueryErrorSeverity.Error,
+          ),
+        ]);
         TelemetryProcessor.traceFailure(Action.QueryGenerationFromCopilotPrompt, {
           databaseName: databaseId,
           collectionId: containerId,
@@ -301,7 +310,38 @@ export const QueryCopilotPromptbar: React.FC<QueryCopilotPromptProps> = ({
       return "Content is updated";
     }
   };
+  const openSamplePrompts = () => {
+    inputEdited.current = true;
+    setShowSamplePrompts(true);
+  };
+  const totalSuggestions = useMemo(
+    () => [...filteredSuggestedPrompts, ...filteredHistories],
+    [filteredSuggestedPrompts, filteredHistories],
+  );
 
+  const handleKeyDownForInput = (event: React.KeyboardEvent<HTMLInputElement>) => {
+    if (event.key === DownArrow) {
+      setFocusedIndex(0);
+      itemRefs.current[0]?.current?.focus();
+    } else if (event.key === Enter && userPrompt) {
+      inputEdited.current = true;
+      startGenerateQueryProcess();
+    }
+  };
+
+  const handleKeyDownForItem = (event: React.KeyboardEvent<HTMLInputElement>) => {
+    if (event.key === UpArrow && focusedIndex > 0) {
+      itemRefs.current[focusedIndex - 1].current?.focus();
+      setFocusedIndex((prevIndex) => prevIndex - 1);
+    } else if (event.key === DownArrow && focusedIndex < totalSuggestions.length - 1) {
+      itemRefs.current[focusedIndex + 1].current?.focus();
+      setFocusedIndex((prevIndex) => prevIndex + 1);
+    }
+  };
+
+  React.useEffect(() => {
+    itemRefs.current = totalSuggestions.map(() => React.createRef());
+  }, [totalSuggestions]);
   React.useEffect(() => {
     useTabs.getState().setIsQueryErrorThrown(false);
   }, []);
@@ -331,23 +371,14 @@ export const QueryCopilotPromptbar: React.FC<QueryCopilotPromptProps> = ({
               id="naturalLanguageInput"
               value={userPrompt}
               onChange={handleUserPromptChange}
-              onClick={() => {
-                inputEdited.current = true;
-                setShowSamplePrompts(true);
-              }}
-              onKeyDown={(e) => {
-                if (e.key === "Enter" && userPrompt) {
-                  inputEdited.current = true;
-                  startGenerateQueryProcess();
-                }
-              }}
+              onClick={openSamplePrompts}
+              onFocus={() => setShowSamplePrompts(true)}
+              elementRef={searchInputRef}
+              onKeyDown={handleKeyDownForInput}
               style={{ lineHeight: 30 }}
               styles={{
                 root: { width: "100%" },
-                suffix: {
-                  background: "none",
-                  padding: 0,
-                },
+                suffix: { background: "none", padding: 0 },
                 fieldGroup: {
                   borderRadius: 4,
                   borderColor: "#D1D1D1",
@@ -360,7 +391,8 @@ export const QueryCopilotPromptbar: React.FC<QueryCopilotPromptProps> = ({
                 },
               }}
               disabled={isGeneratingQuery}
-              autoComplete="off"
+              autoComplete="list"
+              aria-expanded={showSamplePrompts}
               placeholder="Ask a question in natural language and we’ll generate the query for you."
               aria-labelledby="copilot-textfield-label"
               onRenderSuffix={() => {
@@ -432,6 +464,8 @@ export const QueryCopilotPromptbar: React.FC<QueryCopilotPromptProps> = ({
                             setShowSamplePrompts(false);
                             inputEdited.current = true;
                           }}
+                          elementRef={itemRefs.current[i]}
+                          onKeyDown={handleKeyDownForItem}
                           onRenderIcon={() => <Image src={RecentIcon} styles={{ root: { overflow: "unset" } }} />}
                           styles={promptStyles}
                         >
@@ -454,14 +488,16 @@ export const QueryCopilotPromptbar: React.FC<QueryCopilotPromptProps> = ({
                       >
                         Suggested Prompts
                       </Text>
-                      {filteredSuggestedPrompts.map((prompt) => (
+                      {filteredSuggestedPrompts.map((prompt, index) => (
                         <DefaultButton
                           key={prompt.id}
+                          elementRef={itemRefs.current[filteredHistories.length + index]}
                           onClick={() => {
                             setUserPrompt(prompt.text);
                             setShowSamplePrompts(false);
                             inputEdited.current = true;
                           }}
+                          onKeyDown={handleKeyDownForItem}
                           onRenderIcon={() => <Image src={HintIcon} />}
                           styles={promptStyles}
                         >
@@ -514,7 +550,9 @@ export const QueryCopilotPromptbar: React.FC<QueryCopilotPromptProps> = ({
                   </Link>
                   {showErrorMessageBar && (
                     <MessageBar messageBarType={MessageBarType.error}>
-                      {errorMessage ? errorMessage : "We ran into an error and were not able to execute query."}
+                      {errors.length > 0
+                        ? errors[0].message
+                        : "We ran into an error and were not able to execute query."}
                     </MessageBar>
                   )}
                   {showInvalidQueryMessageBar && (

src/Explorer/QueryCopilot/QueryCopilotTab.test.tsx

@@ -1,10 +1,39 @@
 import { shallow } from "enzyme";
+import { CopilotSubComponentNames } from "Explorer/QueryCopilot/QueryCopilotUtilities";
 import React from "react";
+import { AppStateComponentNames, StorePath } from "Shared/AppStatePersistenceUtility";
+import { updateUserContext } from "UserContext";
 import Explorer from "../Explorer";
 import { QueryCopilotTab } from "./QueryCopilotTab";
 
 describe("Query copilot tab snapshot test", () => {
   it("should render with initial input", () => {
+    updateUserContext({
+      databaseAccount: {
+        name: "name",
+        properties: undefined,
+        id: "",
+        location: "",
+        type: "",
+        kind: "",
+      },
+    });
+
+    const loadState = (path: StorePath) => {
+      if (
+        path.componentName === AppStateComponentNames.QueryCopilot &&
+        path.subComponentName === CopilotSubComponentNames.toggleStatus
+      ) {
+        return { enabled: true };
+      } else {
+        return undefined;
+      }
+    };
+
+    jest.mock("Shared/AppStatePersistenceUtility", () => ({
+      loadState,
+    }));
+
     const wrapper = shallow(<QueryCopilotTab explorer={new Explorer()} />);
     expect(wrapper).toMatchSnapshot();
   });

src/Explorer/QueryCopilot/QueryCopilotTab.tsx

@@ -3,9 +3,10 @@ import { Stack } from "@fluentui/react";
 import { QueryCopilotSampleContainerId, QueryCopilotSampleDatabaseId } from "Common/Constants";
 import { CommandButtonComponentProps } from "Explorer/Controls/CommandButton/CommandButtonComponent";
 import { EditorReact } from "Explorer/Controls/Editor/EditorReact";
-import { useCommandBar } from "Explorer/Menus/CommandBar/CommandBarComponentAdapter";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import { SaveQueryPane } from "Explorer/Panes/SaveQueryPane/SaveQueryPane";
 import { QueryCopilotPromptbar } from "Explorer/QueryCopilot/QueryCopilotPromptbar";
+import { readCopilotToggleStatus, saveCopilotToggleStatus } from "Explorer/QueryCopilot/QueryCopilotUtilities";
 import { OnExecuteQueryClick } from "Explorer/QueryCopilot/Shared/QueryCopilotClient";
 import { QueryCopilotProps } from "Explorer/QueryCopilot/Shared/QueryCopilotInterfaces";
 import { QueryCopilotResults } from "Explorer/QueryCopilot/Shared/QueryCopilotResults";
@@ -18,18 +19,13 @@ import SplitterLayout from "react-splitter-layout";
 import QueryCommandIcon from "../../../images/CopilotCommand.svg";
 import ExecuteQueryIcon from "../../../images/ExecuteQuery.svg";
 import SaveQueryIcon from "../../../images/save-cosmos.svg";
-import * as StringUtility from "../../Shared/StringUtility";
 
 export const QueryCopilotTab: React.FC<QueryCopilotProps> = ({ explorer }: QueryCopilotProps): JSX.Element => {
   const { query, setQuery, selectedQuery, setSelectedQuery, isGeneratingQuery } = useQueryCopilot();
 
-  const cachedCopilotToggleStatus: string = localStorage.getItem(
-    `${userContext.databaseAccount?.id}-queryCopilotToggleStatus`,
+  const [copilotActive, setCopilotActive] = useState<boolean>(() =>
+    readCopilotToggleStatus(userContext.databaseAccount),
   );
-  const copilotInitialActive: boolean = cachedCopilotToggleStatus
-    ? StringUtility.toBoolean(cachedCopilotToggleStatus)
-    : true;
-  const [copilotActive, setCopilotActive] = useState<boolean>(copilotInitialActive);
   const [tabActive, setTabActive] = useState<boolean>(true);
 
   const getCommandbarButtons = (): CommandButtonComponentProps[] => {
@@ -88,7 +84,7 @@ export const QueryCopilotTab: React.FC<QueryCopilotProps> = ({ explorer }: Query
 
   const toggleCopilot = (toggle: boolean) => {
     setCopilotActive(toggle);
-    localStorage.setItem(`${userContext.databaseAccount?.id}-queryCopilotToggleStatus`, toggle.toString());
+    saveCopilotToggleStatus(userContext.databaseAccount, toggle);
   };
 
   return (

src/Explorer/QueryCopilot/QueryCopilotUtilities.test.tsx

@@ -90,7 +90,7 @@ describe("QueryCopilotUtilities", () => {
 
       // Mock the items.query method to return the mockResult
       (
-        sampleDataClient().database("CopilotSampleDb").container("SampleContainer").items.query as jest.Mock
+        sampleDataClient().database("CopilotSampleDB").container("SampleContainer").items.query as jest.Mock
       ).mockReturnValue(mockResult);
 
       const result = querySampleDocuments(query, options);
@@ -119,10 +119,10 @@ describe("QueryCopilotUtilities", () => {
       const result = await readSampleDocument(documentId);
 
       expect(sampleDataClient).toHaveBeenCalled();
-      expect(sampleDataClient().database).toHaveBeenCalledWith("CopilotSampleDb");
-      expect(sampleDataClient().database("CopilotSampleDb").container).toHaveBeenCalledWith("SampleContainer");
+      expect(sampleDataClient().database).toHaveBeenCalledWith("CopilotSampleDB");
+      expect(sampleDataClient().database("CopilotSampleDB").container).toHaveBeenCalledWith("SampleContainer");
       expect(
-        sampleDataClient().database("CopilotSampleDb").container("SampleContainer").item("DocumentId", undefined).read,
+        sampleDataClient().database("CopilotSampleDB").container("SampleContainer").item("DocumentId", undefined).read,
       ).toHaveBeenCalled();
       expect(result).toEqual(expectedResponse);
     });
@@ -144,10 +144,10 @@ describe("QueryCopilotUtilities", () => {
       await expect(readSampleDocument(documentId)).rejects.toStrictEqual(errorMock);
 
       expect(sampleDataClient).toHaveBeenCalled();
-      expect(sampleDataClient().database).toHaveBeenCalledWith("CopilotSampleDb");
-      expect(sampleDataClient().database("CopilotSampleDb").container).toHaveBeenCalledWith("SampleContainer");
+      expect(sampleDataClient().database).toHaveBeenCalledWith("CopilotSampleDB");
+      expect(sampleDataClient().database("CopilotSampleDB").container).toHaveBeenCalledWith("SampleContainer");
       expect(
-        sampleDataClient().database("CopilotSampleDb").container("SampleContainer").item("DocumentId", undefined).read,
+        sampleDataClient().database("CopilotSampleDB").container("SampleContainer").item("DocumentId", undefined).read,
       ).toHaveBeenCalled();
       expect(handleError).toHaveBeenCalledWith(errorMock, "ReadDocument", expect.any(String));
     });

src/Explorer/QueryCopilot/QueryCopilotUtilities.ts

@@ -4,8 +4,11 @@ import { handleError } from "Common/ErrorHandlingUtils";
 import { sampleDataClient } from "Common/SampleDataClient";
 import { getPartitionKeyValue } from "Common/dataAccess/getPartitionKeyValue";
 import { getCommonQueryOptions } from "Common/dataAccess/queryDocuments";
+import { DatabaseAccount } from "Contracts/DataModels";
 import DocumentId from "Explorer/Tree/DocumentId";
+import { AppStateComponentNames, loadState, saveState } from "Shared/AppStatePersistenceUtility";
 import { logConsoleProgress } from "Utils/NotificationConsoleUtils";
+import * as StringUtility from "../../Shared/StringUtility";
 
 export interface SuggestedPrompt {
   id: number;
@@ -54,3 +57,110 @@ export const getSuggestedPrompts = (): SuggestedPrompt[] => {
     { id: 3, text: "Find the oldest item added to my collection" },
   ];
 };
+
+// Prompt history persistence
+export enum CopilotSubComponentNames {
+  promptHistory = "PromptHistory",
+  toggleStatus = "ToggleStatus",
+}
+
+const getLegacyHistoryKey = (databaseAccount: DatabaseAccount): string =>
+  `${databaseAccount?.id}-queryCopilotHistories`;
+const getLegacyToggleStatusKey = (databaseAccount: DatabaseAccount): string =>
+  `${databaseAccount?.id}-queryCopilotToggleStatus`;
+
+// Migration only needs to run once
+let hasMigrated = false;
+// Migrate old prompt history to new format
+export const migrateCopilotPersistence = (databaseAccount: DatabaseAccount): void => {
+  if (hasMigrated) {
+    return;
+  }
+
+  let key = getLegacyHistoryKey(databaseAccount);
+  let item = localStorage.getItem(key);
+  if (item !== undefined && item !== null) {
+    const historyItems = item.split("|");
+    saveState(
+      {
+        componentName: AppStateComponentNames.QueryCopilot,
+        subComponentName: CopilotSubComponentNames.promptHistory,
+        globalAccountName: databaseAccount.name,
+        databaseName: undefined,
+        containerName: undefined,
+      },
+      historyItems,
+    );
+
+    localStorage.removeItem(key);
+  }
+
+  key = getLegacyToggleStatusKey(databaseAccount);
+  item = localStorage.getItem(key);
+  if (item !== undefined && item !== null) {
+    saveState(
+      {
+        componentName: AppStateComponentNames.QueryCopilot,
+        subComponentName: CopilotSubComponentNames.toggleStatus,
+        globalAccountName: databaseAccount.name,
+        databaseName: undefined,
+        containerName: undefined,
+      },
+      StringUtility.toBoolean(item),
+    );
+
+    localStorage.removeItem(key);
+  }
+
+  hasMigrated = true;
+};
+
+export const readPromptHistory = (databaseAccount: DatabaseAccount): string[] => {
+  migrateCopilotPersistence(databaseAccount);
+  return (
+    (loadState({
+      componentName: AppStateComponentNames.QueryCopilot,
+      subComponentName: CopilotSubComponentNames.promptHistory,
+      globalAccountName: databaseAccount.name,
+      databaseName: undefined,
+      containerName: undefined,
+    }) as string[]) || []
+  );
+};
+
+export const savePromptHistory = (databaseAccount: DatabaseAccount, historyItems: string[]): void => {
+  saveState(
+    {
+      componentName: AppStateComponentNames.QueryCopilot,
+      subComponentName: CopilotSubComponentNames.promptHistory,
+      globalAccountName: databaseAccount.name,
+      databaseName: undefined,
+      containerName: undefined,
+    },
+    historyItems,
+  );
+};
+
+export const readCopilotToggleStatus = (databaseAccount: DatabaseAccount): boolean => {
+  migrateCopilotPersistence(databaseAccount);
+  return !!loadState({
+    componentName: AppStateComponentNames.QueryCopilot,
+    subComponentName: CopilotSubComponentNames.toggleStatus,
+    globalAccountName: databaseAccount.name,
+    databaseName: undefined,
+    containerName: undefined,
+  }) as boolean;
+};
+
+export const saveCopilotToggleStatus = (databaseAccount: DatabaseAccount, status: boolean): void => {
+  saveState(
+    {
+      componentName: AppStateComponentNames.QueryCopilot,
+      subComponentName: CopilotSubComponentNames.toggleStatus,
+      globalAccountName: databaseAccount.name,
+      databaseName: undefined,
+      containerName: undefined,
+    },
+    status,
+  );
+};

src/Explorer/QueryCopilot/Shared/QueryCopilotClient.ts

@@ -13,6 +13,7 @@ import {
 import { getErrorMessage, getErrorStack, handleError } from "Common/ErrorHandlingUtils";
 import { shouldEnableCrossPartitionKey } from "Common/HeadersUtility";
 import { MinimalQueryIterator } from "Common/IteratorUtilities";
+import QueryError from "Common/QueryError";
 import { createUri } from "Common/UrlUtility";
 import { queryDocumentsPage } from "Common/dataAccess/queryDocumentsPage";
 import { configContext } from "ConfigContext";
@@ -25,7 +26,7 @@ import {
 import { AuthorizationTokenHeaderMetadata, QueryResults } from "Contracts/ViewModels";
 import { useDialog } from "Explorer/Controls/Dialog";
 import Explorer from "Explorer/Explorer";
-import { querySampleDocuments } from "Explorer/QueryCopilot/QueryCopilotUtilities";
+import { querySampleDocuments, readCopilotToggleStatus } from "Explorer/QueryCopilot/QueryCopilotUtilities";
 import { FeedbackParams, GenerateSQLQueryResponse } from "Explorer/QueryCopilot/Shared/QueryCopilotInterfaces";
 import { Action } from "Shared/Telemetry/TelemetryConstants";
 import { traceFailure, traceStart, traceSuccess } from "Shared/Telemetry/TelemetryProcessor";
@@ -35,7 +36,6 @@ import { useNewPortalBackendEndpoint } from "Utils/EndpointUtils";
 import { queryPagesUntilContentPresent } from "Utils/QueryUtils";
 import { QueryCopilotState, useQueryCopilot } from "hooks/useQueryCopilot";
 import { useTabs } from "hooks/useTabs";
-import * as StringUtility from "../../../Shared/StringUtility";
 
 async function fetchWithTimeout(
   url: string,
@@ -354,24 +354,23 @@ export const QueryDocumentsPerPage = async (
     );
 
     useQueryCopilot.getState().setQueryResults(queryResults);
-    useQueryCopilot.getState().setErrorMessage("");
+    useQueryCopilot.getState().setErrors([]);
     useQueryCopilot.getState().setShowErrorMessageBar(false);
     traceSuccess(Action.ExecuteQueryGeneratedFromQueryCopilot, {
       correlationId: useQueryCopilot.getState().correlationId,
     });
   } catch (error) {
-    const isCopilotActive = StringUtility.toBoolean(
-      localStorage.getItem(`${userContext.databaseAccount?.id}-queryCopilotToggleStatus`),
-    );
+    const isCopilotActive = readCopilotToggleStatus(userContext.databaseAccount);
     const errorMessage = getErrorMessage(error);
     traceFailure(Action.ExecuteQueryGeneratedFromQueryCopilot, {
       correlationId: useQueryCopilot.getState().correlationId,
-      errorMessage: errorMessage,
+      errorMessage,
     });
     handleError(errorMessage, "executeQueryCopilotTab");
     useTabs.getState().setIsQueryErrorThrown(true);
     if (isCopilotActive) {
-      useQueryCopilot.getState().setErrorMessage(errorMessage);
+      const queryErrors = QueryError.tryParse(error);
+      useQueryCopilot.getState().setErrors(queryErrors);
       useQueryCopilot.getState().setShowErrorMessageBar(true);
     }
   } finally {

src/Explorer/QueryCopilot/Shared/QueryCopilotResults.tsx

@@ -8,7 +8,7 @@ export const QueryCopilotResults: React.FC = (): JSX.Element => {
     <QueryResultSection
       isMongoDB={false}
       queryEditorContent={useQueryCopilot.getState().selectedQuery || useQueryCopilot.getState().query}
-      error={useQueryCopilot.getState().errorMessage}
+      errors={useQueryCopilot.getState().errors}
       queryResults={useQueryCopilot.getState().queryResults}
       isExecuting={useQueryCopilot.getState().isExecuting}
       executeQueryDocumentsPage={(firstItemIndex: number) =>

src/Explorer/QueryCopilot/__snapshots__/QueryCopilotTab.test.tsx.snap

@@ -17,38 +17,6 @@ exports[`Query copilot tab snapshot test should render with initial input 1`] =
       }
     }
   >
-    <QueryCopilotPromptbar
-      containerId="SampleContainer"
-      databaseId="CopilotSampleDb"
-      explorer={
-        Explorer {
-          "_isInitializingNotebooks": false,
-          "isFixedCollectionWithSharedThroughputSupported": [Function],
-          "isTabsContentExpanded": [Function],
-          "onRefreshDatabasesKeyPress": [Function],
-          "onRefreshResourcesClick": [Function],
-          "phoenixClient": PhoenixClient {
-            "armResourceId": undefined,
-            "retryOptions": {
-              "maxTimeout": 5000,
-              "minTimeout": 5000,
-              "retries": 3,
-            },
-          },
-          "provideFeedbackEmail": [Function],
-          "queriesClient": QueriesClient {
-            "container": [Circular],
-          },
-          "refreshNotebookList": [Function],
-          "resourceTree": ResourceTreeAdapter {
-            "container": [Circular],
-            "copyNotebook": [Function],
-            "parameters": [Function],
-          },
-        }
-      }
-      toggleCopilot={[Function]}
-    />
     <Stack
       className="tabPaneContentContainer"
     >

src/Explorer/Sidebar.tsx

@@ -1,6 +1,7 @@
 import {
   Button,
   Menu,
+  MenuButton,
   MenuButtonProps,
   MenuItem,
   MenuList,
@@ -25,7 +26,7 @@ import { getCollectionName, getDatabaseName } from "Utils/APITypeUtils";
 import { Allotment, AllotmentHandle } from "allotment";
 import { useSidePanel } from "hooks/useSidePanel";
 import { debounce } from "lodash";
-import React, { useCallback, useEffect, useMemo, useRef } from "react";
+import React, { useCallback, useEffect, useMemo, useRef, useState } from "react";
 
 const useSidebarStyles = makeStyles({
   sidebar: {
@@ -60,6 +61,7 @@ const useSidebarStyles = makeStyles({
     alignItems: "center",
     justifyItems: "center",
     width: "100%",
+    containerType: "size", // Use this container for "@container" queries below this.
     ...cosmosShorthands.borderBottom(),
   },
   loadingProgressBar: {
@@ -83,6 +85,18 @@ const useSidebarStyles = makeStyles({
       },
     },
   },
+  globalCommandsMenuButton: {
+    display: "inline-flex",
+    "@container (min-width: 250px)": {
+      display: "none",
+    },
+  },
+  globalCommandsSplitButton: {
+    display: "none",
+    "@container (min-width: 250px)": {
+      display: "flex",
+    },
+  },
 });
 
 interface GlobalCommandsProps {
@@ -99,6 +113,12 @@ interface GlobalCommand {
 
 const GlobalCommands: React.FC<GlobalCommandsProps> = ({ explorer }) => {
   const styles = useSidebarStyles();
+
+  // Since we have two buttons in the DOM (one for small screens and one for larger screens), we wrap the entire thing in a div.
+  // However, that messes with the Menu positioning, so we need to get a reference to the 'div' to pass to the Menu.
+  // We can't use a ref though, because it would be set after the Menu is rendered, so we use a state value to force a re-render.
+  const [globalCommandButton, setGlobalCommandButton] = useState<HTMLElement | null>(null);
+
   const actions = useMemo<GlobalCommand[]>(() => {
     if (
       configContext.platform === Platform.Fabric ||
@@ -168,16 +188,22 @@ const GlobalCommands: React.FC<GlobalCommandsProps> = ({ explorer }) => {
           {primaryAction.label}
         </Button>
       ) : (
-        <Menu positioning="below-end">
+        <Menu positioning={{ target: globalCommandButton, position: "below", align: "end" }}>
           <MenuTrigger disableButtonEnhancement>
             {(triggerProps: MenuButtonProps) => (
+              <div ref={setGlobalCommandButton}>
                 <SplitButton
                   menuButton={{ ...triggerProps, "aria-label": "More commands" }}
                   primaryActionButton={{ onClick: onPrimaryActionClick }}
+                  className={styles.globalCommandsSplitButton}
                   icon={primaryAction.icon}
                 >
                   {primaryAction.label}
                 </SplitButton>
+                <MenuButton {...triggerProps} icon={primaryAction.icon} className={styles.globalCommandsMenuButton}>
+                  New...
+                </MenuButton>
+              </div>
             )}
           </MenuTrigger>
           <MenuPopover>
@@ -199,7 +225,7 @@ interface SidebarProps {
   explorer: Explorer;
 }
 
-const CollapseThreshold = 50;
+const CollapseThreshold = 140;
 
 export const SidebarContainer: React.FC<SidebarProps> = ({ explorer }) => {
   const styles = useSidebarStyles();
@@ -260,7 +286,7 @@ export const SidebarContainer: React.FC<SidebarProps> = ({ explorer }) => {
       {/* Collections Tree - Start */}
       {hasSidebar && (
         // When collapsed, we force the pane to 24 pixels wide and make it non-resizable.
-        <Allotment.Pane minSize={24} preferredSize={300}>
+        <Allotment.Pane minSize={24} preferredSize={250}>
           <CosmosFluentProvider className={mergeClasses(styles.sidebar)}>
             <div className={styles.sidebarContainer}>
               {loading && (
@@ -274,6 +300,7 @@ export const SidebarContainer: React.FC<SidebarProps> = ({ explorer }) => {
                     <div className={styles.floatingControls}>
                       <button
                         type="button"
+                        data-test="Sidebar/RefreshButton"
                         className={styles.floatingControlButton}
                         disabled={loading}
                         title="Refresh"
@@ -313,7 +340,7 @@ export const SidebarContainer: React.FC<SidebarProps> = ({ explorer }) => {
           </CosmosFluentProvider>
         </Allotment.Pane>
       )}
-      <Allotment.Pane minSize={800}>
+      <Allotment.Pane minSize={200}>
         <Tabs explorer={explorer} />
       </Allotment.Pane>
     </Allotment>

src/Explorer/SplashScreen/SplashScreen.tsx

@@ -114,7 +114,7 @@ export class SplashScreen extends React.Component<SplashScreenProps> {
   }
 
   private clearMostRecent = (): void => {
-    MostRecentActivity.mostRecentActivity.clear(userContext.databaseAccount?.id);
+    MostRecentActivity.clear(userContext.databaseAccount?.name);
     this.setState({});
   };
 
@@ -498,7 +498,7 @@ export class SplashScreen extends React.Component<SplashScreenProps> {
   }
 
   private createRecentItems(): SplashScreenItem[] {
-    return MostRecentActivity.mostRecentActivity.getItems(userContext.databaseAccount?.id).map((activity) => {
+    return MostRecentActivity.getItems(userContext.databaseAccount?.name).map((activity) => {
       switch (activity.type) {
         default: {
           const unknownActivity: never = activity;

src/Explorer/Tables/Constants.ts

@@ -155,6 +155,7 @@ export const htmlAttributeNames = {
   dataTableContentTypeAttr: "contentType_attr",
   dataTableSnapshotAttr: "snapshot_attr",
   dataTableRowKeyAttr: "rowKey_attr",
+  dataTablePartitionKeyAttr: "partKey_attr",
   dataTableMessageIdAttr: "messageId_attr",
   dataTableHeaderIndex: "data-column-index",
 };

src/Explorer/Tables/DataTable/DataTableBindingManager.ts

@@ -193,6 +193,9 @@ function getServerData(sSource: any, aoData: any, fnCallback: any, oSettings: an
  * from UI elements.
  */
 function bindClientId(nRow: Node, aData: Entities.ITableEntity) {
+  if (aData.PartitionKey && aData.PartitionKey._) {
+    $(nRow).attr(Constants.htmlAttributeNames.dataTablePartitionKeyAttr, aData.PartitionKey._);
+  }
   $(nRow).attr(Constants.htmlAttributeNames.dataTableRowKeyAttr, aData.RowKey._);
   return nRow;
 }
@@ -205,6 +208,10 @@ function selectionChanged(element: any, valueAccessor: any, allBindings: any, vi
   selected &&
     selected.forEach((b: Entities.ITableEntity) => {
       var sel = DataTableOperations.getRowSelector([
+        {
+          key: Constants.htmlAttributeNames.dataTablePartitionKeyAttr,
+          value: b.PartitionKey && b.PartitionKey._ && b.PartitionKey._.toString(),
+        },
         {
           key: Constants.htmlAttributeNames.dataTableRowKeyAttr,
           value: b.RowKey && b.RowKey._ && b.RowKey._.toString(),
@@ -370,8 +377,9 @@ function updateSelectionStatus(oSettings: any): void {
     for (var i = 0; i < $dataTableRows.length; i++) {
       var $row: JQuery = $dataTableRows.eq(i);
       var rowKey: string = $row.attr(Constants.htmlAttributeNames.dataTableRowKeyAttr);
+      var partitionKey: string = $row.attr(Constants.htmlAttributeNames.dataTablePartitionKeyAttr);
       var table = tableEntityListViewModelMap[oSettings.ajax].tableViewModel;
-      if (table.isItemSelected(table.getTableEntityKeys(rowKey))) {
+      if (table.isItemSelected(table.getTableEntityKeys(rowKey, partitionKey))) {
         $row.attr("tabindex", "0");
       }
     }

src/Explorer/Tables/DataTable/DataTableOperationManager.ts

@@ -56,7 +56,10 @@ export default class DataTableOperationManager {
       // Simply select the first item in this case.
       var lastSelectedItemIndex = lastSelectedItem
         ? this._tableEntityListViewModel.getItemIndexFromCurrentPage(
-            this._tableEntityListViewModel.getTableEntityKeys(lastSelectedItem.RowKey._),
+            this._tableEntityListViewModel.getTableEntityKeys(
+              lastSelectedItem.RowKey._,
+              lastSelectedItem.PartitionKey && lastSelectedItem.PartitionKey._,
+            ),
           )
         : -1;
       var nextIndex: number = isUpArrowKey ? lastSelectedItemIndex - 1 : lastSelectedItemIndex + 1;
@@ -147,13 +150,14 @@ export default class DataTableOperationManager {
   private getEntityIdentity($elem: JQuery<Element>): Entities.ITableEntityIdentity {
     return {
       RowKey: $elem.attr(Constants.htmlAttributeNames.dataTableRowKeyAttr),
+      PartitionKey: $elem.attr(Constants.htmlAttributeNames.dataTablePartitionKeyAttr),
     };
   }
 
   private updateLastSelectedItem($elem: JQuery<Element>, isShiftSelect: boolean) {
     var entityIdentity: Entities.ITableEntityIdentity = this.getEntityIdentity($elem);
     var entity = this._tableEntityListViewModel.getItemFromCurrentPage(
-      this._tableEntityListViewModel.getTableEntityKeys(entityIdentity.RowKey),
+      this._tableEntityListViewModel.getTableEntityKeys(entityIdentity.PartitionKey, entityIdentity.RowKey),
     );
 
     this._tableEntityListViewModel.lastSelectedItem = entity;
@@ -168,7 +172,7 @@ export default class DataTableOperationManager {
       var entityIdentity: Entities.ITableEntityIdentity = this.getEntityIdentity($elem);
 
       this._tableEntityListViewModel.clearSelection();
-      this.addToSelection(entityIdentity.RowKey);
+      this.addToSelection(entityIdentity.RowKey, entityIdentity.PartitionKey);
     }
   }
 
@@ -190,11 +194,11 @@ export default class DataTableOperationManager {
 
       if (
         !this._tableEntityListViewModel.isItemSelected(
-          this._tableEntityListViewModel.getTableEntityKeys(entityIdentity.RowKey),
+          this._tableEntityListViewModel.getTableEntityKeys(entityIdentity.PartitionKey, entityIdentity.RowKey),
         )
       ) {
         // Adding item not previously in selection
-        this.addToSelection(entityIdentity.RowKey);
+        this.addToSelection(entityIdentity.RowKey, entityIdentity.PartitionKey);
       } else {
         koSelected.remove((item: Entities.ITableEntity) => item.RowKey._ === entityIdentity.RowKey);
       }
@@ -212,10 +216,10 @@ export default class DataTableOperationManager {
     if (anchorItem) {
       var entityIdentity: Entities.ITableEntityIdentity = this.getEntityIdentity($elem);
       var elementIndex = this._tableEntityListViewModel.getItemIndexFromAllPages(
-        this._tableEntityListViewModel.getTableEntityKeys(entityIdentity.RowKey),
+        this._tableEntityListViewModel.getTableEntityKeys(entityIdentity.PartitionKey, entityIdentity.RowKey),
       );
       var anchorIndex = this._tableEntityListViewModel.getItemIndexFromAllPages(
-        this._tableEntityListViewModel.getTableEntityKeys(anchorItem.RowKey._),
+        this._tableEntityListViewModel.getTableEntityKeys(anchorItem.PartitionKey._, anchorItem.RowKey._),
       );
 
       var startIndex = Math.min(elementIndex, anchorIndex);
@@ -234,24 +238,25 @@ export default class DataTableOperationManager {
 
     if (
       !this._tableEntityListViewModel.isItemSelected(
-        this._tableEntityListViewModel.getTableEntityKeys(entityIdentity.RowKey),
+        this._tableEntityListViewModel.getTableEntityKeys(entityIdentity.PartitionKey, entityIdentity.RowKey),
       )
     ) {
       if (this._tableEntityListViewModel.selected().length) {
         this._tableEntityListViewModel.clearSelection();
       }
-      this.addToSelection(entityIdentity.RowKey);
+      this.addToSelection(entityIdentity.RowKey, entityIdentity.PartitionKey);
     }
   }
 
-  private addToSelection(rowKey: string) {
+  private addToSelection(rowKey: string, partitionKey?: string) {
     var selectedEntity: Entities.ITableEntity = this._tableEntityListViewModel.getItemFromCurrentPage(
-      this._tableEntityListViewModel.getTableEntityKeys(rowKey),
+      this._tableEntityListViewModel.getTableEntityKeys(rowKey, partitionKey),
     );
 
     if (selectedEntity != null) {
       this._tableEntityListViewModel.selected.push(selectedEntity);
     }
+    console.log(this._tableEntityListViewModel.selected().length);
   }
 
   // Selecting first row if the selection is empty.
@@ -269,7 +274,7 @@ export default class DataTableOperationManager {
       // Clear last selection: lastSelectedItem and lastSelectedAnchorItem
       this._tableEntityListViewModel.clearLastSelected();
 
-      this.addToSelection(firstEntity.RowKey._);
+      this.addToSelection(firstEntity.RowKey._, firstEntity.PartitionKey && firstEntity.PartitionKey._);
 
       // Update last selection
       this._tableEntityListViewModel.lastSelectedItem = firstEntity;

src/Explorer/Tables/DataTable/TableEntityListViewModel.ts

@@ -128,8 +128,14 @@ export default class TableEntityListViewModel extends DataTableViewModel {
     this.sqlQuery = ko.observable<string>("SELECT * FROM c");
   }
 
-  public getTableEntityKeys(rowKey: string): Entities.IProperty[] {
-    return [{ key: Constants.EntityKeyNames.RowKey, value: rowKey }];
+  public getTableEntityKeys(rowKey: string, partitionKey: string): Entities.IProperty[] {
+    const properties: Entities.IProperty[] = [{ key: Constants.EntityKeyNames.RowKey, value: rowKey }];
+
+    if (partitionKey) {
+      properties.push({ key: Constants.EntityKeyNames.PartitionKey, value: partitionKey });
+    }
+
+    return properties;
   }
 
   public reloadTable(useSetting: boolean = true, resetHeaders: boolean = true): DataTables.Api<Element> {
@@ -261,7 +267,8 @@ export default class TableEntityListViewModel extends DataTableViewModel {
     }
     var oldEntityIndex: number = _.findIndex(
       this.cache.data,
-      (data: Entities.ITableEntity) => data.RowKey._ === entity.RowKey._,
+      (data: Entities.ITableEntity) =>
+        data.RowKey._ === entity.RowKey._ && data.PartitionKey._ === entity.PartitionKey._,
     );
 
     this.cache.data.splice(oldEntityIndex, 1, entity);
@@ -285,7 +292,7 @@ export default class TableEntityListViewModel extends DataTableViewModel {
       entities.forEach((entity: Entities.ITableEntity) => {
         var cachedIndex: number = _.findIndex(
           this.cache.data,
-          (e: Entities.ITableEntity) => e.RowKey._ === entity.RowKey._,
+          (e: Entities.ITableEntity) => e.RowKey._ === entity.RowKey._ && e.PartitionKey._ === entity.PartitionKey._,
         );
         if (cachedIndex >= 0) {
           this.cache.data.splice(cachedIndex, 1);
@@ -393,6 +400,16 @@ export default class TableEntityListViewModel extends DataTableViewModel {
     });
   }
 
+  // Override as Tables can have the same Row key in different Partition keys
+  /**
+   * @override
+   */
+  public getItemFromCurrentPage(itemKeys: Entities.IProperty[]): Entities.ITableEntity {
+    return _.find(this.items(), (item: Entities.ITableEntity) => {
+      return this.matchesKeys(item, itemKeys);
+    });
+  }
+
   private prefetchAndRender(
     tableQuery: Entities.ITableQuery,
     tablePageStartIndex: number,

src/Explorer/Tables/Entities.ts

@@ -36,4 +36,5 @@ export interface ITableQuery {
 
 export interface ITableEntityIdentity {
   RowKey: string;
+  PartitionKey?: string;
 }

src/Explorer/Tables/TableDataClient.ts

@@ -753,17 +753,11 @@ export class CassandraAPIDataClient extends TableDataClient {
       CassandraProxyEndpoints.Development,
       CassandraProxyEndpoints.Mpac,
       CassandraProxyEndpoints.Prod,
+      CassandraProxyEndpoints.Fairfax,
+      CassandraProxyEndpoints.Mooncake,
     ];
-    let canAccessCassandraProxy: boolean = userContext.databaseAccount.properties.publicNetworkAccess === "Enabled";
-    if (
-      configContext.CASSANDRA_PROXY_ENDPOINT !== CassandraProxyEndpoints.Development &&
-      userContext.databaseAccount.properties.ipRules?.length > 0
-    ) {
-      canAccessCassandraProxy = canAccessCassandraProxy && configContext.CASSANDRA_PROXY_OUTBOUND_IPS_ALLOWLISTED;
-    }
 
     return (
-      canAccessCassandraProxy &&
       configContext.NEW_CASSANDRA_APIS?.includes(api) &&
       activeCassandraProxyEndpoints.includes(configContext.CASSANDRA_PROXY_ENDPOINT)
     );

src/Explorer/Tabs/DocumentsTabV2/DocumentsTabStateUtil.ts

@@ -0,0 +1,113 @@
+// Definitions of State data
+
+import { ColumnDefinition } from "Explorer/Tabs/DocumentsTabV2/DocumentsTableComponent";
+import {
+  AppStateComponentNames,
+  deleteState,
+  loadState,
+  saveState,
+  saveStateDebounced,
+} from "Shared/AppStatePersistenceUtility";
+import { userContext } from "UserContext";
+import * as ViewModels from "../../../Contracts/ViewModels";
+import { Action } from "../../../Shared/Telemetry/TelemetryConstants";
+import * as TelemetryProcessor from "../../../Shared/Telemetry/TelemetryProcessor";
+
+const componentName = AppStateComponentNames.DocumentsTab;
+
+export enum SubComponentName {
+  ColumnSizes = "ColumnSizes",
+  FilterHistory = "FilterHistory",
+  MainTabDivider = "MainTabDivider",
+  ColumnsSelection = "ColumnsSelection",
+  ColumnSort = "ColumnSort",
+}
+
+export type ColumnSizesMap = { [columnId: string]: WidthDefinition };
+export type FilterHistory = string[];
+export type WidthDefinition = { widthPx: number };
+export type TabDivider = { leftPaneWidthPercent: number };
+export type ColumnsSelection = { selectedColumnIds: string[]; columnDefinitions: ColumnDefinition[] };
+export type ColumnSort = { columnId: string; direction: "ascending" | "descending" };
+
+/**
+ *
+ * @param subComponentName
+ * @param collection
+ * @param defaultValue Will be returned if persisted state is not found
+ * @returns
+ */
+export const readSubComponentState = <T>(
+  subComponentName: SubComponentName,
+  collection: ViewModels.CollectionBase,
+  defaultValue: T,
+): T => {
+  const globalAccountName = userContext.databaseAccount?.name;
+  if (!globalAccountName) {
+    const message = "Database account name not found in userContext";
+    console.error(message);
+    TelemetryProcessor.traceFailure(Action.ReadPersistedTabState, { message, componentName });
+    return defaultValue;
+  }
+
+  const state = loadState({
+    componentName: componentName,
+    subComponentName,
+    globalAccountName,
+    databaseName: collection.databaseId,
+    containerName: collection.id(),
+  }) as T;
+
+  return state || defaultValue;
+};
+
+/**
+ *
+ * @param subComponentName
+ * @param collection
+ * @param state State to save
+ * @param debounce true for high-frequency calls (e.g mouse drag events)
+ */
+export const saveSubComponentState = <T>(
+  subComponentName: SubComponentName,
+  collection: ViewModels.CollectionBase,
+  state: T,
+  debounce?: boolean,
+): void => {
+  const globalAccountName = userContext.databaseAccount?.name;
+  if (!globalAccountName) {
+    const message = "Database account name not found in userContext";
+    console.error(message);
+    TelemetryProcessor.traceFailure(Action.SavePersistedTabState, { message, componentName });
+    return;
+  }
+
+  (debounce ? saveStateDebounced : saveState)(
+    {
+      componentName: componentName,
+      subComponentName,
+      globalAccountName,
+      databaseName: collection.databaseId,
+      containerName: collection.id(),
+    },
+    state,
+  );
+};
+
+export const deleteSubComponentState = (subComponentName: SubComponentName, collection: ViewModels.CollectionBase) => {
+  const globalAccountName = userContext.databaseAccount?.name;
+  if (!globalAccountName) {
+    const message = "Database account name not found in userContext";
+    console.error(message);
+    TelemetryProcessor.traceFailure(Action.DeletePersistedTabState, { message, componentName });
+    return;
+  }
+
+  deleteState({
+    componentName: componentName,
+    subComponentName,
+    globalAccountName,
+    databaseName: collection.databaseId,
+    containerName: collection.id(),
+  });
+};

src/Explorer/Tabs/DocumentsTabV2/DocumentsTabV2.test.tsx

@@ -1,8 +1,11 @@
 import { FeedResponse, ItemDefinition, Resource } from "@azure/cosmos";
+import { waitFor } from "@testing-library/react";
 import { deleteDocuments } from "Common/dataAccess/deleteDocument";
 import { Platform, updateConfigContext } from "ConfigContext";
+import { useDialog } from "Explorer/Controls/Dialog";
 import { EditorReactProps } from "Explorer/Controls/Editor/EditorReact";
-import { useCommandBar } from "Explorer/Menus/CommandBar/CommandBarComponentAdapter";
+import { ProgressModalDialog } from "Explorer/Controls/ProgressModalDialog";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import {
   ButtonsDependencies,
   DELETE_BUTTON_ID,
@@ -13,6 +16,7 @@ import {
   SAVE_BUTTON_ID,
   UPDATE_BUTTON_ID,
   UPLOAD_BUTTON_ID,
+  addStringsNoDuplicate,
   buildQuery,
   getDiscardExistingDocumentChangesButtonState,
   getDiscardNewDocumentChangesButtonState,
@@ -64,12 +68,14 @@ jest.mock("Explorer/Controls/Editor/EditorReact", () => ({
   EditorReact: (props: EditorReactProps) => <>{props.content}</>,
 }));
 
+const mockDialogState = {
+  showOkCancelModalDialog: jest.fn((title: string, subText: string, okLabel: string, onOk: () => void) => onOk()),
+  showOkModalDialog: () => {},
+};
+
 jest.mock("Explorer/Controls/Dialog", () => ({
   useDialog: {
-    getState: jest.fn(() => ({
-      showOkCancelModalDialog: (title: string, subText: string, okLabel: string, onOk: () => void) => onOk(),
-      showOkModalDialog: () => {},
-    })),
+    getState: jest.fn(() => mockDialogState),
   },
 }));
 
@@ -79,6 +85,10 @@ jest.mock("Common/dataAccess/deleteDocument", () => ({
   ),
 }));
 
+jest.mock("Explorer/Controls/ProgressModalDialog", () => ({
+  ProgressModalDialog: jest.fn(() => <></>),
+}));
+
 async function waitForComponentToPaint<P = unknown>(wrapper: ReactWrapper<P> | ShallowWrapper<P>, amount = 0) {
   let newWrapper;
   await act(async () => {
@@ -91,7 +101,13 @@ async function waitForComponentToPaint<P = unknown>(wrapper: ReactWrapper<P> | S
 describe("Documents tab (noSql API)", () => {
   describe("buildQuery", () => {
     it("should generate the right select query for SQL API", () => {
-      expect(buildQuery(false, "")).toContain("select");
+      expect(
+        buildQuery(false, "", ["pk"], {
+          paths: ["pk"],
+          kind: "Hash",
+          version: 2,
+        }),
+      ).toContain("select");
     });
   });
 
@@ -339,7 +355,10 @@ describe("Documents tab (noSql API)", () => {
     const createMockProps = (): IDocumentsTabComponentProps => ({
       isPreferredApiMongoDB: false,
       documentIds: [],
-      collection: undefined,
+      collection: {
+        id: ko.observable<string>("collectionId"),
+        databaseId: "databaseId",
+      } as ViewModels.CollectionBase,
       partitionKey: { kind: "Hash", paths: ["/foo"], version: 2 },
       onLoadStartKey: 0,
       tabTitle: "",
@@ -380,7 +399,7 @@ describe("Documents tab (noSql API)", () => {
         .findWhere((node) => node.text() === "Edit Filter")
         .at(0)
         .simulate("click");
-      expect(wrapper.find("#filterInput").exists()).toBeTruthy();
+      expect(wrapper.find("Input.filterInput").exists()).toBeTruthy();
     });
   });
 
@@ -442,7 +461,7 @@ describe("Documents tab (noSql API)", () => {
         useCommandBar
           .getState()
           .contextButtons.find((button) => button.id === NEW_DOCUMENT_BUTTON_ID)
-          .onCommandClick(undefined);
+          .onCommandClick(undefined, undefined);
       });
       expect(wrapper.findWhere((node) => node.text().includes("replace_with_new_document_id")).exists()).toBeTruthy();
     });
@@ -452,14 +471,36 @@ describe("Documents tab (noSql API)", () => {
         useCommandBar
           .getState()
           .contextButtons.find((button) => button.id === NEW_DOCUMENT_BUTTON_ID)
-          .onCommandClick(undefined);
+          .onCommandClick(undefined, undefined);
       });
 
       expect(useCommandBar.getState().contextButtons.find((button) => button.id === SAVE_BUTTON_ID)).toBeDefined();
       expect(useCommandBar.getState().contextButtons.find((button) => button.id === DISCARD_BUTTON_ID)).toBeDefined();
     });
 
-    it("clicking Delete Document asks for confirmation", () => {
+    it("clicking Delete Document asks for confirmation", async () => {
+      act(async () => {
+        await useCommandBar
+          .getState()
+          .contextButtons.find((button) => button.id === DELETE_BUTTON_ID)
+          .onCommandClick(undefined, undefined);
+      });
+
+      expect(useDialog.getState().showOkCancelModalDialog).toHaveBeenCalled();
+    });
+
+    it("clicking Delete Document for NoSql shows progress dialog", () => {
+      act(() => {
+        useCommandBar
+          .getState()
+          .contextButtons.find((button) => button.id === DELETE_BUTTON_ID)
+          .onCommandClick(undefined, undefined);
+      });
+
+      expect(ProgressModalDialog).toHaveBeenCalled();
+    });
+
+    it("clicking Delete Document eventually calls delete client api", () => {
       const mockDeleteDocuments = deleteDocuments as jest.Mock;
       mockDeleteDocuments.mockClear();
 
@@ -467,10 +508,21 @@ describe("Documents tab (noSql API)", () => {
         useCommandBar
           .getState()
           .contextButtons.find((button) => button.id === DELETE_BUTTON_ID)
-          .onCommandClick(undefined);
+          .onCommandClick(undefined, undefined);
       });
 
-      expect(mockDeleteDocuments).toHaveBeenCalled();
+      // The implementation uses setTimeout, so wait for it to finish
+      waitFor(() => expect(mockDeleteDocuments).toHaveBeenCalled());
     });
   });
 });
+
+describe("Documents tab", () => {
+  it("should add strings to array without duplicate", () => {
+    const array1 = ["a", "b", "c"];
+    const array2 = ["b", "c", "d"];
+
+    const array3 = addStringsNoDuplicate(array1, array2);
+    expect(array3).toEqual(["a", "b", "c", "d"]);
+  });
+});

src/Explorer/Tabs/DocumentsTabV2/DocumentsTabV2Mongo.test.tsx

@@ -1,7 +1,7 @@
-import { deleteDocument } from "Common/MongoProxyClient";
+import { deleteDocuments } from "Common/MongoProxyClient";
 import { Platform, updateConfigContext } from "ConfigContext";
 import { EditorReactProps } from "Explorer/Controls/Editor/EditorReact";
-import { useCommandBar } from "Explorer/Menus/CommandBar/CommandBarComponentAdapter";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import {
   DELETE_BUTTON_ID,
   DISCARD_BUTTON_ID,
@@ -49,7 +49,9 @@ jest.mock("Common/MongoProxyClient", () => ({
       id: "id1",
     }),
   ),
-  deleteDocument: jest.fn(() => Promise.resolve()),
+  deleteDocuments: jest.fn(() => Promise.resolve({ deleteCount: 0, isAcknowledged: true })),
+  ThrottlingError: Error,
+  useMongoProxyEndpoint: jest.fn(() => true),
 }));
 
 jest.mock("Explorer/Controls/Editor/EditorReact", () => ({
@@ -161,7 +163,7 @@ describe("Documents tab (Mongo API)", () => {
         useCommandBar
           .getState()
           .contextButtons.find((button) => button.id === NEW_DOCUMENT_BUTTON_ID)
-          .onCommandClick(undefined);
+          .onCommandClick(undefined, undefined);
       });
       expect(wrapper.findWhere((node) => node.text().includes("replace_with_new_document_id")).exists()).toBeTruthy();
     });
@@ -171,25 +173,25 @@ describe("Documents tab (Mongo API)", () => {
         useCommandBar
           .getState()
           .contextButtons.find((button) => button.id === NEW_DOCUMENT_BUTTON_ID)
-          .onCommandClick(undefined);
+          .onCommandClick(undefined, undefined);
       });
 
       expect(useCommandBar.getState().contextButtons.find((button) => button.id === SAVE_BUTTON_ID)).toBeDefined();
       expect(useCommandBar.getState().contextButtons.find((button) => button.id === DISCARD_BUTTON_ID)).toBeDefined();
     });
 
-    it("clicking Delete Document asks for confirmation", () => {
-      const mockDeleteDocument = deleteDocument as jest.Mock;
-      mockDeleteDocument.mockClear();
+    it("clicking Delete Document eventually calls delete client api", () => {
+      const mockDeleteDocuments = deleteDocuments as jest.Mock;
+      mockDeleteDocuments.mockClear();
 
       act(() => {
         useCommandBar
           .getState()
           .contextButtons.find((button) => button.id === DELETE_BUTTON_ID)
-          .onCommandClick(undefined);
+          .onCommandClick(undefined, undefined);
       });
 
-      expect(mockDeleteDocument).toHaveBeenCalled();
+      expect(mockDeleteDocuments).toHaveBeenCalled();
     });
   });
 });

src/Explorer/Tabs/DocumentsTabV2/DocumentsTableComponent.test.tsx

@@ -1,6 +1,7 @@
 import { TableRowId } from "@fluentui/react-components";
 import { mount } from "enzyme";
 import React from "react";
+import * as ViewModels from "../../../Contracts/ViewModels";
 import { DocumentsTableComponent, IDocumentsTableComponentProps } from "./DocumentsTableComponent";
 
 const PARTITION_KEY_HEADER = "partitionKey";
@@ -20,11 +21,19 @@ describe("DocumentsTableComponent", () => {
       height: 0,
       width: 0,
     },
-    columnHeaders: {
-      idHeader: ID_HEADER,
-      partitionKeyHeaders: [PARTITION_KEY_HEADER],
+    columnDefinitions: [
+      { id: ID_HEADER, label: "ID", isPartitionKey: false },
+      { id: PARTITION_KEY_HEADER, label: "Partition Key", isPartitionKey: true },
+    ],
+    isRowSelectionDisabled: false,
+    collection: {
+      databaseId: "db",
+      id: ((): string => "coll") as ko.Observable<string>,
+    } as ViewModels.CollectionBase,
+    onRefreshTable: (): void => {
+      throw new Error("Function not implemented.");
     },
-    isSelectionDisabled: false,
+    selectedColumnIds: [],
   });
 
   it("should render documents and partition keys in header", () => {
@@ -35,7 +44,7 @@ describe("DocumentsTableComponent", () => {
 
   it("should not render selection column when isSelectionDisabled is true", () => {
     const props: IDocumentsTableComponentProps = createMockProps();
-    props.isSelectionDisabled = true;
+    props.isRowSelectionDisabled = true;
     const wrapper = mount(<DocumentsTableComponent {...props} />);
     expect(wrapper).toMatchSnapshot();
   });

src/Explorer/Tabs/DocumentsTabV2/DocumentsTableComponent.tsx

@@ -1,52 +1,86 @@
 import {
+  Button,
   Menu,
+  MenuDivider,
   MenuItem,
   MenuList,
   MenuPopover,
   MenuTrigger,
   TableRowData as RowStateBase,
+  SortDirection,
   Table,
   TableBody,
   TableCell,
   TableCellLayout,
   TableColumnDefinition,
+  TableColumnId,
   TableColumnSizingOptions,
   TableHeader,
   TableHeaderCell,
   TableRow,
   TableRowId,
   TableSelectionCell,
-  createTableColumn,
+  tokens,
   useArrowNavigationGroup,
   useTableColumnSizing_unstable,
   useTableFeatures,
   useTableSelection,
+  useTableSort,
 } from "@fluentui/react-components";
+import {
+  ArrowClockwise16Regular,
+  ArrowResetRegular,
+  DeleteRegular,
+  EditRegular,
+  MoreHorizontalRegular,
+  TableResizeColumnRegular,
+  TextSortAscendingRegular,
+  TextSortDescendingRegular,
+} from "@fluentui/react-icons";
 import { NormalizedEventKey } from "Common/Constants";
+import { Environment, getEnvironment } from "Common/EnvironmentUtility";
+import { TableColumnSelectionPane } from "Explorer/Panes/TableColumnSelectionPane/TableColumnSelectionPane";
+import {
+  ColumnSizesMap,
+  ColumnSort,
+  deleteSubComponentState,
+  readSubComponentState,
+  saveSubComponentState,
+  SubComponentName,
+} from "Explorer/Tabs/DocumentsTabV2/DocumentsTabStateUtil";
 import { INITIAL_SELECTED_ROW_INDEX, useDocumentsTabStyles } from "Explorer/Tabs/DocumentsTabV2/DocumentsTabV2";
 import { selectionHelper } from "Explorer/Tabs/DocumentsTabV2/SelectionHelper";
 import { LayoutConstants } from "Explorer/Theme/ThemeUtil";
 import { isEnvironmentCtrlPressed, isEnvironmentShiftPressed } from "Utils/KeyboardUtils";
+import { useSidePanel } from "hooks/useSidePanel";
 import React, { useCallback, useMemo } from "react";
 import { FixedSizeList as List, ListChildComponentProps } from "react-window";
+import * as ViewModels from "../../../Contracts/ViewModels";
 
 export type DocumentsTableComponentItem = {
   id: string;
-} & Record<string, string>;
+} & Record<string, string | number>;
 
-export type ColumnHeaders = {
-  idHeader: string;
-  partitionKeyHeaders: string[];
+export type ColumnDefinition = {
+  id: string;
+  label: string;
+  isPartitionKey: boolean;
 };
 export interface IDocumentsTableComponentProps {
+  onRefreshTable: () => void;
   items: DocumentsTableComponentItem[];
   onItemClicked: (index: number) => void;
   onSelectedRowsChange: (selectedItemsIndices: Set<TableRowId>) => void;
   selectedRows: Set<TableRowId>;
   size: { height: number; width: number };
-  columnHeaders: ColumnHeaders;
+  selectedColumnIds: string[];
+  columnDefinitions: ColumnDefinition[];
   style?: React.CSSProperties;
-  isSelectionDisabled?: boolean;
+  isRowSelectionDisabled?: boolean;
+  collection: ViewModels.CollectionBase;
+  onColumnSelectionChange?: (newSelectedColumnIds: string[]) => void;
+  defaultColumnSelection?: string[];
+  isColumnSelectionDisabled?: boolean;
 }
 
 interface TableRowData extends RowStateBase<DocumentsTableComponentItem> {
@@ -59,72 +93,204 @@ interface ReactWindowRenderFnProps extends ListChildComponentProps {
   data: TableRowData[];
 }
 
+const COLUMNS_MENU_NAME = "columnsMenu";
+
+const defaultSize = {
+  idealWidth: 200,
+  minWidth: 50,
+};
 export const DocumentsTableComponent: React.FC<IDocumentsTableComponentProps> = ({
+  onRefreshTable,
   items,
   onSelectedRowsChange,
   selectedRows,
   style,
   size,
-  columnHeaders,
-  isSelectionDisabled,
+  selectedColumnIds,
+  columnDefinitions,
+  isRowSelectionDisabled: isSelectionDisabled,
+  collection,
+  onColumnSelectionChange,
+  defaultColumnSelection,
+  isColumnSelectionDisabled,
 }: IDocumentsTableComponentProps) => {
   const styles = useDocumentsTabStyles();
 
-  const initialSizingOptions: TableColumnSizingOptions = {
-    id: {
-      idealWidth: 280,
+  const [columnSizingOptions, setColumnSizingOptions] = React.useState<TableColumnSizingOptions>(() => {
+    const columnSizesMap: ColumnSizesMap = readSubComponentState(SubComponentName.ColumnSizes, collection, {});
+    const columnSizesPx: TableColumnSizingOptions = {};
+    selectedColumnIds.forEach((columnId) => {
+      if (
+        !columnSizesMap ||
+        !columnSizesMap[columnId] ||
+        columnSizesMap[columnId].widthPx === undefined ||
+        isNaN(columnSizesMap[columnId].widthPx)
+      ) {
+        columnSizesPx[columnId] = defaultSize;
+      } else {
+        columnSizesPx[columnId] = {
+          idealWidth: columnSizesMap[columnId].widthPx,
           minWidth: 50,
-    },
         };
-  columnHeaders.partitionKeyHeaders.forEach((pkHeader) => {
-    initialSizingOptions[pkHeader] = {
-      idealWidth: 200,
-      minWidth: 50,
+      }
+    });
+    return columnSizesPx;
+  });
+
+  const [sortState, setSortState] = React.useState<{
+    sortDirection: "ascending" | "descending";
+    sortColumn: TableColumnId | undefined;
+  }>(() => {
+    const sort = readSubComponentState<ColumnSort>(SubComponentName.ColumnSort, collection, undefined);
+
+    if (!sort) {
+      return {
+        sortDirection: undefined,
+        sortColumn: undefined,
+      };
+    }
+
+    return {
+      sortDirection: sort.direction,
+      sortColumn: sort.columnId,
     };
   });
 
-  const [columnSizingOptions, setColumnSizingOptions] = React.useState<TableColumnSizingOptions>(initialSizingOptions);
-
-  const onColumnResize = React.useCallback((_, { columnId, width }) => {
-    setColumnSizingOptions((state) => ({
+  const onColumnResize = React.useCallback((_, { columnId, width }: { columnId: string; width: number }) => {
+    setColumnSizingOptions((state) => {
+      const newSizingOptions = {
         ...state,
         [columnId]: {
           ...state[columnId],
           idealWidth: width,
         },
-    }));
+      };
+
+      const persistentSizes = Object.keys(newSizingOptions).reduce((acc, key) => {
+        acc[key] = {
+          widthPx: newSizingOptions[key].idealWidth,
+        };
+        return acc;
+      }, {} as ColumnSizesMap);
+
+      saveSubComponentState<ColumnSizesMap>(SubComponentName.ColumnSizes, collection, persistentSizes, true);
+
+      return newSizingOptions;
+    });
   }, []);
 
+  // const restoreFocusTargetAttribute = useRestoreFocusTarget();
+
+  const onSortClick = (event: React.SyntheticEvent, columnId: string, direction: SortDirection) => {
+    setColumnSort(event, columnId, direction);
+
+    if (columnId === undefined || direction === undefined) {
+      deleteSubComponentState(SubComponentName.ColumnSort, collection);
+      return;
+    }
+
+    saveSubComponentState<ColumnSort>(SubComponentName.ColumnSort, collection, { columnId, direction });
+  };
+
   // Columns must be a static object and cannot change on re-renders otherwise React will complain about too many refreshes
   const columns: TableColumnDefinition<DocumentsTableComponentItem>[] = useMemo(
     () =>
-      [
-        createTableColumn<DocumentsTableComponentItem>({
-          columnId: "id",
-          compare: (a, b) => a.id.localeCompare(b.id),
-          renderHeaderCell: () => columnHeaders.idHeader,
+      columnDefinitions
+        .filter((column) => selectedColumnIds.includes(column.id))
+        .map((column) => ({
+          columnId: column.id,
+          compare: (a, b) => {
+            if (typeof a[column.id] === "string") {
+              return (a[column.id] as string).localeCompare(b[column.id] as string);
+            } else if (typeof a[column.id] === "number") {
+              return (a[column.id] as number) - (b[column.id] as number);
+            } else {
+              // Should not happen
+              return 0;
+            }
+          },
+          renderHeaderCell: () => (
+            <>
+              <span title={column.label}>{column.label}</span>
+              <Menu>
+                <MenuTrigger disableButtonEnhancement>
+                  <Button
+                    // {...restoreFocusTargetAttribute}
+                    appearance="transparent"
+                    aria-label="Select column"
+                    size="small"
+                    icon={<MoreHorizontalRegular />}
+                    style={{ position: "absolute", right: 0, backgroundColor: tokens.colorNeutralBackground1 }}
+                  />
+                </MenuTrigger>
+                <MenuPopover>
+                  <MenuList>
+                    <MenuItem key="refresh" icon={<ArrowClockwise16Regular />} onClick={onRefreshTable}>
+                      Refresh
+                    </MenuItem>
+                    {[Environment.Development, Environment.Mpac].includes(getEnvironment()) && (
+                      <>
+                        <MenuItem
+                          icon={<TextSortAscendingRegular />}
+                          onClick={(e) => onSortClick(e, column.id, "ascending")}
+                        >
+                          Sort ascending
+                        </MenuItem>
+                        <MenuItem
+                          icon={<TextSortDescendingRegular />}
+                          onClick={(e) => onSortClick(e, column.id, "descending")}
+                        >
+                          Sort descending
+                        </MenuItem>
+                        <MenuItem icon={<ArrowResetRegular />} onClick={(e) => onSortClick(e, undefined, undefined)}>
+                          Reset sorting
+                        </MenuItem>
+                        {!isColumnSelectionDisabled && (
+                          <MenuItem key="editcolumns" icon={<EditRegular />} onClick={openColumnSelectionPane}>
+                            Edit columns
+                          </MenuItem>
+                        )}
+                        <MenuDivider />
+                      </>
+                    )}
+                    <MenuItem
+                      key="keyboardresize"
+                      icon={<TableResizeColumnRegular />}
+                      onClick={columnSizing.enableKeyboardMode(column.id)}
+                    >
+                      Resize with left/right arrow keys
+                    </MenuItem>
+                    {[Environment.Development, Environment.Mpac].includes(getEnvironment()) &&
+                      !isColumnSelectionDisabled && (
+                        <MenuItem
+                          key="remove"
+                          icon={<DeleteRegular />}
+                          onClick={() => {
+                            // Remove column id from selectedColumnIds
+                            const index = selectedColumnIds.indexOf(column.id);
+                            if (index === -1) {
+                              return;
+                            }
+                            const newSelectedColumnIds = [...selectedColumnIds];
+                            newSelectedColumnIds.splice(index, 1);
+                            onColumnSelectionChange(newSelectedColumnIds);
+                          }}
+                        >
+                          Remove column
+                        </MenuItem>
+                      )}
+                  </MenuList>
+                </MenuPopover>
+              </Menu>
+            </>
+          ),
           renderCell: (item) => (
-            <TableCellLayout truncate title={item.id}>
-              {item.id}
+            <TableCellLayout truncate title={`${item[column.id]}`}>
+              {item[column.id]}
             </TableCellLayout>
           ),
-        }),
-      ].concat(
-        columnHeaders.partitionKeyHeaders.map((pkHeader) =>
-          createTableColumn<DocumentsTableComponentItem>({
-            columnId: pkHeader,
-            compare: (a, b) => a[pkHeader].localeCompare(b[pkHeader]),
-            // Show Refresh button on last column
-            renderHeaderCell: () => <span title={pkHeader}>{pkHeader}</span>,
-            renderCell: (item) => (
-              <TableCellLayout truncate title={item[pkHeader]}>
-                {item[pkHeader]}
-              </TableCellLayout>
-            ),
-          }),
-        ),
-      ),
-    [columnHeaders],
+        })),
+    [columnDefinitions, onColumnSelectionChange, selectedColumnIds],
   );
 
   const [selectionStartIndex, setSelectionStartIndex] = React.useState<number>(INITIAL_SELECTED_ROW_INDEX);
@@ -214,6 +380,7 @@ export const DocumentsTableComponent: React.FC<IDocumentsTableComponentProps> =
     columnSizing_unstable: columnSizing,
     tableRef,
     selection: { allRowsSelected, someRowsSelected, toggleAllRows, toggleRow, isRowSelected },
+    sort: { getSortDirection, setColumnSort, sort },
   } = useTableFeatures(
     {
       columns,
@@ -227,10 +394,20 @@ export const DocumentsTableComponent: React.FC<IDocumentsTableComponentProps> =
         // eslint-disable-next-line react/prop-types
         onSelectionChange: (e, data) => onSelectedRowsChange(data.selectedItems),
       }),
+      useTableSort({
+        sortState,
+        onSortChange: (e, nextSortState) => setSortState(nextSortState),
+      }),
     ],
   );
 
-  const rows: TableRowData[] = getRows((row) => {
+  const headerSortProps = (columnId: TableColumnId) => ({
+    // onClick: (e: React.MouseEvent) => toggleColumnSort(e, columnId),
+    sortDirection: getSortDirection(columnId),
+  });
+
+  const rows: TableRowData[] = sort(
+    getRows((row) => {
       const selected = isRowSelected(row.rowId);
       return {
         ...row,
@@ -244,7 +421,8 @@ export const DocumentsTableComponent: React.FC<IDocumentsTableComponentProps> =
         selected,
         appearance: selected ? ("brand" as const) : ("none" as const),
       };
-  });
+    }),
+  );
 
   const toggleAllKeydown = React.useCallback(
     (e: React.KeyboardEvent<HTMLDivElement>) => {
@@ -271,39 +449,53 @@ export const DocumentsTableComponent: React.FC<IDocumentsTableComponentProps> =
     ...style,
   };
 
+  const checkedValues: { [COLUMNS_MENU_NAME]: string[] } = {
+    [COLUMNS_MENU_NAME]: [],
+  };
+  columnDefinitions.forEach(
+    (columnDefinition) =>
+      selectedColumnIds.includes(columnDefinition.id) && checkedValues[COLUMNS_MENU_NAME].push(columnDefinition.id),
+  );
+
+  const openColumnSelectionPane = (): void => {
+    useSidePanel
+      .getState()
+      .openSidePanel(
+        "Select columns",
+        <TableColumnSelectionPane
+          selectedColumnIds={selectedColumnIds}
+          columnDefinitions={columnDefinitions}
+          onSelectionChange={onColumnSelectionChange}
+          defaultSelection={defaultColumnSelection}
+        />,
+      );
+  };
+
   return (
     <Table noNativeElements {...tableProps}>
-      <TableHeader>
+      <TableHeader className={styles.tableHeader}>
         <TableRow className={styles.tableRow} style={{ width: size ? size.width - 15 : "100%" }}>
           {!isSelectionDisabled && (
             <TableSelectionCell
+              key="selectcell"
               checked={allRowsSelected ? true : someRowsSelected ? "mixed" : false}
               onClick={toggleAllRows}
               onKeyDown={toggleAllKeydown}
               checkboxIndicator={{ "aria-label": "Select all rows " }}
             />
           )}
-          {columns.map((column /* index */) => (
-            <Menu openOnContext key={column.columnId}>
-              <MenuTrigger>
+          {columns.map((column) => (
             <TableHeaderCell
               className={styles.tableCell}
               key={column.columnId}
               {...columnSizing.getTableHeaderCellProps(column.columnId)}
+              {...headerSortProps(column.columnId)}
             >
               {column.renderHeaderCell()}
             </TableHeaderCell>
-              </MenuTrigger>
-              <MenuPopover>
-                <MenuList>
-                  <MenuItem onClick={columnSizing.enableKeyboardMode(column.columnId)}>
-                    Keyboard Column Resizing
-                  </MenuItem>
-                </MenuList>
-              </MenuPopover>
-            </Menu>
           ))}
         </TableRow>
+        <div className={styles.tableHeaderFiller}></div>
       </TableHeader>
       <TableBody>
         <List

src/Explorer/Tabs/DocumentsTabV2/SelectionHelper.ts

@@ -1,3 +1,5 @@
+import { useEffect, useRef } from "react";
+
 /**
  * Utility class to help with selection.
  * This emulates File Explorer selection behavior.
@@ -90,3 +92,12 @@ export const selectionHelper = (
     }
   }
 };
+
+// To get previous values of a state in useEffect
+export const usePrevious = <T>(value: T): T | undefined => {
+  const ref = useRef<T>();
+  useEffect(() => {
+    ref.current = value;
+  });
+  return ref.current;
+};

src/Explorer/Tabs/DocumentsTabV2/__snapshots__/DocumentsTabV2.test.tsx.snap

@@ -38,9 +38,11 @@ exports[`Documents tab (noSql API) when rendered should render the page 1`] = `
         }
       }
     >
-      <Allotment>
+      <Allotment
+        onDragEnd={[Function]}
+      >
         <Allotment.Pane
-          minSize={175}
+          minSize={55}
           preferredSize="35%"
         >
           <div
@@ -52,41 +54,50 @@ exports[`Documents tab (noSql API) when rendered should render the page 1`] = `
               }
             }
           >
-            <div
-              className="___77lcry0_0000000 f10pi13n"
-            >
-              <div
-                className="___1rwkz4r_0000000 f1euv43f f1l8gmrm f1e31b4d f150nix6 fy6ml6n f19g0ac"
-              >
-                <Button
-                  appearance="transparent"
-                  aria-label="Refresh"
-                  icon={<ArrowClockwise16Filled />}
-                  onClick={[Function]}
-                  onKeyDown={[Function]}
-                  size="small"
-                  style={
-                    {
-                      "color": undefined,
-                    }
-                  }
-                />
-              </div>
-            </div>
             <div
               className="___9o87uj0_0000000 ffefeo0"
             >
-              <DocumentsTableComponent
-                columnHeaders={
+              <div
+                style={
                   {
-                    "idHeader": "id",
-                    "partitionKeyHeaders": [],
+                    "height": "100%",
+                    "width": "calc(100% + -11px)",
                   }
                 }
-                isSelectionDisabled={true}
+              >
+                <DocumentsTableComponent
+                  collection={
+                    {
+                      "databaseId": "databaseId",
+                      "id": [Function],
+                    }
+                  }
+                  columnDefinitions={
+                    [
+                      {
+                        "id": "id",
+                        "isPartitionKey": false,
+                        "label": "id",
+                      },
+                    ]
+                  }
+                  defaultColumnSelection={
+                    [
+                      "id",
+                    ]
+                  }
+                  isColumnSelectionDisabled={false}
+                  isRowSelectionDisabled={true}
                   items={[]}
+                  onColumnSelectionChange={[Function]}
                   onItemClicked={[Function]}
+                  onRefreshTable={[Function]}
                   onSelectedRowsChange={[Function]}
+                  selectedColumnIds={
+                    [
+                      "id",
+                    ]
+                  }
                   selectedRows={
                     Set {
                       0,
@@ -95,10 +106,10 @@ exports[`Documents tab (noSql API) when rendered should render the page 1`] = `
                 />
               </div>
             </div>
+          </div>
         </Allotment.Pane>
         <Allotment.Pane
-          minSize={300}
-          preferredSize="65%"
+          minSize={30}
         >
           <div
             style={

src/Explorer/Tabs/MongoQueryTab/MongoQueryTab.tsx

@@ -3,7 +3,7 @@ import MongoUtility from "../../../Common/MongoUtility";
 import * as ViewModels from "../../../Contracts/ViewModels";
 import Explorer from "../../Explorer";
 import { NewQueryTab } from "../QueryTab/QueryTab";
-import QueryTabComponent, { IQueryTabComponentProps, ITabAccessor } from "../QueryTab/QueryTabComponent";
+import { IQueryTabComponentProps, ITabAccessor, QueryTabComponent } from "../QueryTab/QueryTabComponent";
 
 export interface IMongoQueryTabProps {
   container: Explorer;

src/Explorer/Tabs/NotebookV2Tab.ts

@@ -152,7 +152,6 @@ export default class NotebookTabV2 extends NotebookTabBase {
         ariaLabel: saveLabel,
         children: saveButtonChildren.length && [
           {
-            iconName: "Save",
             onCommandClick: () => this.notebookComponentAdapter.notebookSave(),
             commandButtonLabel: saveLabel,
             hasPopup: false,

src/Explorer/Tabs/QueryTab/ErrorList.tsx

@@ -0,0 +1,143 @@
+import {
+  Button,
+  DataGrid,
+  DataGridBody,
+  DataGridCell,
+  DataGridHeader,
+  DataGridHeaderCell,
+  DataGridRow,
+  TableCellLayout,
+  TableColumnDefinition,
+  TableColumnSizingOptions,
+  createTableColumn,
+  tokens,
+} from "@fluentui/react-components";
+import { ErrorCircleFilled, MoreHorizontalRegular, QuestionRegular, WarningFilled } from "@fluentui/react-icons";
+import QueryError, { QueryErrorSeverity, compareSeverity } from "Common/QueryError";
+import { useQueryTabStyles } from "Explorer/Tabs/QueryTab/Styles";
+import { useNotificationConsole } from "hooks/useNotificationConsole";
+import React from "react";
+
+const severityIcons = {
+  [QueryErrorSeverity.Error]: <ErrorCircleFilled color={tokens.colorPaletteRedBackground3} />,
+  [QueryErrorSeverity.Warning]: <WarningFilled color={tokens.colorPaletteYellowForeground1} />,
+};
+
+export const ErrorList: React.FC<{ errors: QueryError[] }> = ({ errors }) => {
+  const styles = useQueryTabStyles();
+  const onErrorDetailsClick = (): boolean => {
+    useNotificationConsole.getState().expandConsole();
+    return false;
+  };
+
+  const columns: TableColumnDefinition<QueryError>[] = [
+    createTableColumn<QueryError>({
+      columnId: "code",
+      compare: (item1, item2) => item1.code.localeCompare(item2.code),
+      renderHeaderCell: () => "Code",
+      renderCell: (item) => <TableCellLayout truncate>{item.code}</TableCellLayout>,
+    }),
+    createTableColumn<QueryError>({
+      columnId: "severity",
+      compare: (item1, item2) => compareSeverity(item1.severity, item2.severity),
+      renderHeaderCell: () => "Severity",
+      renderCell: (item) => (
+        <TableCellLayout truncate media={severityIcons[item.severity]}>
+          {item.severity}
+        </TableCellLayout>
+      ),
+    }),
+    createTableColumn<QueryError>({
+      columnId: "location",
+      compare: (item1, item2) => item1.location?.start?.offset - item2.location?.start?.offset,
+      renderHeaderCell: () => "Location",
+      renderCell: (item) => (
+        <TableCellLayout truncate>
+          {item.location
+            ? item.location.start.lineNumber
+              ? `Line ${item.location.start.lineNumber}`
+              : "<unknown>"
+            : "<no location>"}
+        </TableCellLayout>
+      ),
+    }),
+    createTableColumn<QueryError>({
+      columnId: "message",
+      compare: (item1, item2) => item1.message.localeCompare(item2.message),
+      renderHeaderCell: () => "Message",
+      renderCell: (item) => (
+        <div className={styles.errorListMessageCell}>
+          <div className={styles.errorListMessage} title={item.message}>
+            {item.message}
+          </div>
+          <div className={styles.errorListMessageActions}>
+            {item.helpLink && (
+              <Button
+                as="a"
+                aria-label="Help"
+                appearance="subtle"
+                icon={<QuestionRegular />}
+                href={item.helpLink}
+                target="_blank"
+              />
+            )}
+            <Button
+              aria-label="Details"
+              appearance="subtle"
+              icon={<MoreHorizontalRegular />}
+              onClick={onErrorDetailsClick}
+            />
+          </div>
+        </div>
+      ),
+    }),
+  ];
+
+  const columnSizingOptions: TableColumnSizingOptions = {
+    code: {
+      minWidth: 90,
+      idealWidth: 90,
+      defaultWidth: 90,
+    },
+    severity: {
+      minWidth: 100,
+      idealWidth: 100,
+      defaultWidth: 100,
+    },
+    location: {
+      minWidth: 100,
+      idealWidth: 100,
+      defaultWidth: 100,
+    },
+    message: {
+      minWidth: 500,
+    },
+  };
+
+  return (
+    <DataGrid
+      data-test="QueryTab/ResultsPane/ErrorList"
+      items={errors}
+      columns={columns}
+      sortable
+      resizableColumns
+      columnSizingOptions={columnSizingOptions}
+      focusMode="composite"
+    >
+      <DataGridHeader>
+        <DataGridRow>
+          {({ renderHeaderCell }) => <DataGridHeaderCell>{renderHeaderCell()}</DataGridHeaderCell>}
+        </DataGridRow>
+      </DataGridHeader>
+      <DataGridBody<QueryError>>
+        {({ item, rowId }) => (
+          <DataGridRow<QueryError> key={rowId} data-test={`Row:${rowId}`}>
+            {({ columnId, renderCell }) => (
+              <DataGridCell data-test={`Row:${rowId}/Column:${columnId}`}>{renderCell(item)}</DataGridCell>
+            )}
+          </DataGridRow>
+        )}
+      </DataGridBody>
+    </DataGrid>
+  );
+};

src/Explorer/Tabs/QueryTab/QueryResultSection.tsx

@@ -1,544 +1,93 @@
-import {
-  DetailsList,
-  DetailsListLayoutMode,
-  IColumn,
-  Icon,
-  IconButton,
-  Link,
-  Pivot,
-  PivotItem,
-  SelectionMode,
-  Stack,
-  Text,
-  TooltipHost,
-} from "@fluentui/react";
-import { HttpHeaders, NormalizedEventKey } from "Common/Constants";
-import MongoUtility from "Common/MongoUtility";
-import { QueryMetrics } from "Contracts/DataModels";
-import { EditorReact } from "Explorer/Controls/Editor/EditorReact";
-import { IDocument } from "Explorer/Tabs/QueryTab/QueryTabComponent";
-import { userContext } from "UserContext";
-import copy from "clipboard-copy";
-import { useNotificationConsole } from "hooks/useNotificationConsole";
+import { Link } from "@fluentui/react-components";
+import QueryError from "Common/QueryError";
+import { IndeterminateProgressBar } from "Explorer/Controls/IndeterminateProgressBar";
+import { MessageBanner } from "Explorer/Controls/MessageBanner";
+import { useQueryTabStyles } from "Explorer/Tabs/QueryTab/Styles";
 import React from "react";
-import CopilotCopy from "../../../../images/CopilotCopy.svg";
-import DownloadQueryMetrics from "../../../../images/DownloadQuery.svg";
-import QueryEditorNext from "../../../../images/Query-Editor-Next.svg";
 import RunQuery from "../../../../images/RunQuery.png";
-import InfoColor from "../../../../images/info_color.svg";
 import { QueryResults } from "../../../Contracts/ViewModels";
+import { ErrorList } from "./ErrorList";
+import { ResultsView } from "./ResultsView";
 
-interface QueryResultProps {
+export interface ResultsViewProps {
   isMongoDB: boolean;
-  queryEditorContent: string;
-  error: string;
-  isExecuting: boolean;
   queryResults: QueryResults;
   executeQueryDocumentsPage: (firstItemIndex: number) => Promise<void>;
 }
 
+interface QueryResultProps extends ResultsViewProps {
+  queryEditorContent: string;
+  errors: QueryError[];
+  isExecuting: boolean;
+}
+
+const ExecuteQueryCallToAction: React.FC = () => {
+  const styles = useQueryTabStyles();
+  return (
+    <div data-test="QueryTab/ResultsPane/ExecuteCTA" className={styles.executeCallToAction}>
+      <div>
+        <p>
+          <img src={RunQuery} aria-hidden="true" />
+        </p>
+        <p>Execute a query to see the results</p>
+      </div>
+    </div>
+  );
+};
+
 export const QueryResultSection: React.FC<QueryResultProps> = ({
   isMongoDB,
   queryEditorContent,
-  error,
+  errors,
   queryResults,
-  isExecuting,
   executeQueryDocumentsPage,
+  isExecuting,
 }: QueryResultProps): JSX.Element => {
-  const queryMetrics = React.useRef(queryResults?.headers?.[HttpHeaders.queryMetrics]);
-
-  React.useEffect(() => {
-    const latestQueryMetrics = queryResults?.headers?.[HttpHeaders.queryMetrics];
-    if (latestQueryMetrics && Object.keys(latestQueryMetrics).length > 0) {
-      queryMetrics.current = latestQueryMetrics;
-    }
-  }, [queryResults]);
-
-  const onRender = (item: IDocument): JSX.Element => (
-    <>
-      <Text style={{ paddingLeft: 10, margin: 0 }}>{`${item.metric}`}</Text>
-    </>
-  );
-  const columns: IColumn[] = [
-    {
-      key: "column1",
-      name: "Description",
-      iconName: "Info",
-      isIconOnly: true,
-      minWidth: 10,
-      maxWidth: 12,
-      iconClassName: "iconheadercell",
-      data: String,
-      fieldName: "",
-      onRender: (item: IDocument) => {
-        if (item.toolTip !== "") {
-          return (
-            <>
-              <TooltipHost content={`${item.toolTip}`}>
-                <Link style={{ color: "#323130" }}>
-                  <Icon iconName="Info" ariaLabel={`${item.toolTip}`} className="panelInfoIcon" tabIndex={0} />
-                </Link>
-              </TooltipHost>
-            </>
-          );
-        } else {
-          return undefined;
-        }
-      },
-    },
-    {
-      key: "column2",
-      name: "METRIC",
-      minWidth: 200,
-      data: String,
-      fieldName: "metric",
-      onRender,
-    },
-    {
-      key: "column3",
-      name: "VALUE",
-      minWidth: 200,
-      data: String,
-      fieldName: "value",
-    },
-  ];
+  const styles = useQueryTabStyles();
   const maybeSubQuery = queryEditorContent && /.*\(.*SELECT.*\)/i.test(queryEditorContent);
-  const queryResultsString = queryResults
-    ? isMongoDB
-      ? MongoUtility.tojson(queryResults.documents, undefined, false)
-      : JSON.stringify(queryResults.documents, undefined, 4)
-    : "";
-
-  const onErrorDetailsClick = (): boolean => {
-    useNotificationConsole.getState().expandConsole();
-
-    return false;
-  };
-
-  const onErrorDetailsKeyPress = (event: React.KeyboardEvent<HTMLAnchorElement>): boolean => {
-    if (event.key === NormalizedEventKey.Space || event.key === NormalizedEventKey.Enter) {
-      onErrorDetailsClick();
-      return false;
-    }
-
-    return true;
-  };
-
-  const onDownloadQueryMetricsCsvClick = (): boolean => {
-    downloadQueryMetricsCsvData();
-    return false;
-  };
-
-  const onDownloadQueryMetricsCsvKeyPress = (event: React.KeyboardEvent<HTMLAnchorElement>): boolean => {
-    if (event.key === NormalizedEventKey.Space || NormalizedEventKey.Enter) {
-      downloadQueryMetricsCsvData();
-      return false;
-    }
-
-    return true;
-  };
-
-  const downloadQueryMetricsCsvData = (): void => {
-    const csvData: string = generateQueryMetricsCsvData();
-    if (!csvData) {
-      return;
-    }
-
-    if (navigator.msSaveBlob) {
-      // for IE and Edge
-      navigator.msSaveBlob(
-        new Blob([csvData], { type: "data:text/csv;charset=utf-8" }),
-        "PerPartitionQueryMetrics.csv",
-      );
-    } else {
-      const downloadLink: HTMLAnchorElement = document.createElement("a");
-      downloadLink.href = "data:text/csv;charset=utf-8," + encodeURI(csvData);
-      downloadLink.target = "_self";
-      downloadLink.download = "QueryMetricsPerPartition.csv";
-
-      // for some reason, FF displays the download prompt only when
-      // the link is added to the dom so we add and remove it
-      document.body.appendChild(downloadLink);
-      downloadLink.click();
-      downloadLink.remove();
-    }
-  };
-
-  const getAggregatedQueryMetrics = (): QueryMetrics => {
-    const aggregatedQueryMetrics = {
-      documentLoadTime: 0,
-      documentWriteTime: 0,
-      indexHitDocumentCount: 0,
-      outputDocumentCount: 0,
-      outputDocumentSize: 0,
-      indexLookupTime: 0,
-      retrievedDocumentCount: 0,
-      retrievedDocumentSize: 0,
-      vmExecutionTime: 0,
-      runtimeExecutionTimes: {
-        queryEngineExecutionTime: 0,
-        systemFunctionExecutionTime: 0,
-        userDefinedFunctionExecutionTime: 0,
-      },
-      totalQueryExecutionTime: 0,
-    } as QueryMetrics;
-
-    if (queryMetrics.current) {
-      Object.keys(queryMetrics.current).forEach((partitionKeyRangeId) => {
-        const queryMetricsPerPartition = queryMetrics.current[partitionKeyRangeId];
-        if (!queryMetricsPerPartition) {
-          return;
-        }
-        aggregatedQueryMetrics.documentLoadTime += queryMetricsPerPartition.documentLoadTime?.totalMilliseconds() || 0;
-        aggregatedQueryMetrics.documentWriteTime +=
-          queryMetricsPerPartition.documentWriteTime?.totalMilliseconds() || 0;
-        aggregatedQueryMetrics.indexHitDocumentCount += queryMetricsPerPartition.indexHitDocumentCount || 0;
-        aggregatedQueryMetrics.outputDocumentCount += queryMetricsPerPartition.outputDocumentCount || 0;
-        aggregatedQueryMetrics.outputDocumentSize += queryMetricsPerPartition.outputDocumentSize || 0;
-        aggregatedQueryMetrics.indexLookupTime += queryMetricsPerPartition.indexLookupTime?.totalMilliseconds() || 0;
-        aggregatedQueryMetrics.retrievedDocumentCount += queryMetricsPerPartition.retrievedDocumentCount || 0;
-        aggregatedQueryMetrics.retrievedDocumentSize += queryMetricsPerPartition.retrievedDocumentSize || 0;
-        aggregatedQueryMetrics.vmExecutionTime += queryMetricsPerPartition.vmExecutionTime?.totalMilliseconds() || 0;
-        aggregatedQueryMetrics.totalQueryExecutionTime +=
-          queryMetricsPerPartition.totalQueryExecutionTime?.totalMilliseconds() || 0;
-        aggregatedQueryMetrics.runtimeExecutionTimes.queryEngineExecutionTime +=
-          queryMetricsPerPartition.runtimeExecutionTimes?.queryEngineExecutionTime?.totalMilliseconds() || 0;
-        aggregatedQueryMetrics.runtimeExecutionTimes.systemFunctionExecutionTime +=
-          queryMetricsPerPartition.runtimeExecutionTimes?.systemFunctionExecutionTime?.totalMilliseconds() || 0;
-        aggregatedQueryMetrics.runtimeExecutionTimes.userDefinedFunctionExecutionTime +=
-          queryMetricsPerPartition.runtimeExecutionTimes?.userDefinedFunctionExecutionTime?.totalMilliseconds() || 0;
-      });
-    }
-
-    return aggregatedQueryMetrics;
-  };
-
-  const generateQueryMetricsCsvData = (): string => {
-    if (queryMetrics.current) {
-      let csvData =
-        [
-          "Partition key range id",
-          "Retrieved document count",
-          "Retrieved document size (in bytes)",
-          "Output document count",
-          "Output document size (in bytes)",
-          "Index hit document count",
-          "Index lookup time (ms)",
-          "Document load time (ms)",
-          "Query engine execution time (ms)",
-          "System function execution time (ms)",
-          "User defined function execution time (ms)",
-          "Document write time (ms)",
-        ].join(",") + "\n";
-
-      Object.keys(queryMetrics.current).forEach((partitionKeyRangeId) => {
-        const queryMetricsPerPartition = queryMetrics.current[partitionKeyRangeId];
-        csvData +=
-          [
-            partitionKeyRangeId,
-            queryMetricsPerPartition.retrievedDocumentCount,
-            queryMetricsPerPartition.retrievedDocumentSize,
-            queryMetricsPerPartition.outputDocumentCount,
-            queryMetricsPerPartition.outputDocumentSize,
-            queryMetricsPerPartition.indexHitDocumentCount,
-            queryMetricsPerPartition.indexLookupTime?.totalMilliseconds(),
-            queryMetricsPerPartition.documentLoadTime?.totalMilliseconds(),
-            queryMetricsPerPartition.runtimeExecutionTimes?.queryEngineExecutionTime?.totalMilliseconds(),
-            queryMetricsPerPartition.runtimeExecutionTimes?.systemFunctionExecutionTime?.totalMilliseconds(),
-            queryMetricsPerPartition.runtimeExecutionTimes?.userDefinedFunctionExecutionTime?.totalMilliseconds(),
-            queryMetricsPerPartition.documentWriteTime?.totalMilliseconds(),
-          ].join(",") + "\n";
-      });
-
-      return csvData;
-    }
-
-    return undefined;
-  };
-
-  const onFetchNextPageClick = async (): Promise<void> => {
-    const { firstItemIndex, itemCount } = queryResults;
-    await executeQueryDocumentsPage(firstItemIndex + itemCount - 1);
-  };
-
-  const generateQueryStatsItems = (): IDocument[] => {
-    const items: IDocument[] = [
-      {
-        metric: "Request Charge",
-        value: `${queryResults.requestCharge} RUs`,
-        toolTip: "Request Charge",
-      },
-      {
-        metric: "Showing Results",
-        value: queryResults.itemCount > 0 ? `${queryResults.firstItemIndex} - ${queryResults.lastItemIndex}` : `0 - 0`,
-        toolTip: "Showing Results",
-      },
-    ];
-
-    if (userContext.apiType === "SQL") {
-      const aggregatedQueryMetrics = getAggregatedQueryMetrics();
-      items.push(
-        {
-          metric: "Retrieved document count",
-          value: aggregatedQueryMetrics.retrievedDocumentCount?.toString() || "",
-          toolTip: "Total number of retrieved documents",
-        },
-        {
-          metric: "Retrieved document size",
-          value: `${aggregatedQueryMetrics.retrievedDocumentSize?.toString() || 0} bytes`,
-          toolTip: "Total size of retrieved documents in bytes",
-        },
-        {
-          metric: "Output document count",
-          value: aggregatedQueryMetrics.outputDocumentCount?.toString() || "",
-          toolTip: "Number of output documents",
-        },
-        {
-          metric: "Output document size",
-          value: `${aggregatedQueryMetrics.outputDocumentSize?.toString() || 0} bytes`,
-          toolTip: "Total size of output documents in bytes",
-        },
-        {
-          metric: "Index hit document count",
-          value: aggregatedQueryMetrics.indexHitDocumentCount?.toString() || "",
-          toolTip: "Total number of documents matched by the filter",
-        },
-        {
-          metric: "Index lookup time",
-          value: `${aggregatedQueryMetrics.indexLookupTime?.toString() || 0} ms`,
-          toolTip: "Time spent in physical index layer",
-        },
-        {
-          metric: "Document load time",
-          value: `${aggregatedQueryMetrics.documentLoadTime?.toString() || 0} ms`,
-          toolTip: "Time spent in loading documents",
-        },
-        {
-          metric: "Query engine execution time",
-          value: `${aggregatedQueryMetrics.runtimeExecutionTimes?.queryEngineExecutionTime?.toString() || 0} ms`,
-          toolTip:
-            "Time spent by the query engine to execute the query expression (excludes other execution times like load documents or write results)",
-        },
-        {
-          metric: "System function execution time",
-          value: `${aggregatedQueryMetrics.runtimeExecutionTimes?.systemFunctionExecutionTime?.toString() || 0} ms`,
-          toolTip: "Total time spent executing system (built-in) functions",
-        },
-        {
-          metric: "User defined function execution time",
-          value: `${
-            aggregatedQueryMetrics.runtimeExecutionTimes?.userDefinedFunctionExecutionTime?.toString() || 0
-          } ms`,
-          toolTip: "Total time spent executing user-defined functions",
-        },
-        {
-          metric: "Document write time",
-          value: `${aggregatedQueryMetrics.documentWriteTime.toString() || 0} ms`,
-          toolTip: "Time spent to write query result set to response buffer",
-        },
-      );
-    }
-
-    if (queryResults.roundTrips) {
-      items.push({
-        metric: "Round Trips",
-        value: queryResults.roundTrips?.toString(),
-        toolTip: "Number of round trips",
-      });
-    }
-
-    if (queryResults.activityId) {
-      items.push({
-        metric: "Activity id",
-        value: queryResults.activityId,
-        toolTip: "",
-      });
-    }
-
-    return items;
-  };
-
-  const onClickCopyResults = (): void => {
-    copy(queryResultsString);
-  };
 
   return (
-    <Stack style={{ height: "100%" }}>
-      {isMongoDB && queryEditorContent.length === 0 && (
-        <div className="mongoQueryHelper">
+    <div data-test="QueryTab/ResultsPane" className={styles.queryResultsPanel}>
+      {isExecuting && <IndeterminateProgressBar />}
+      <MessageBanner
+        messageId="QueryEditor.EmptyMongoQuery"
+        visible={isMongoDB && queryEditorContent.length === 0}
+        className={styles.queryResultsMessage}
+      >
         Start by writing a Mongo query, for example: <strong>{"{'id':'foo'}"}</strong> or{" "}
         <strong>
           {"{ "}
           {" }"}
         </strong>{" "}
         to get all the documents.
-        </div>
-      )}
-      {maybeSubQuery && (
-        <div className="warningErrorContainer" aria-live="assertive">
-          <div className="warningErrorContent">
-            <span>
-              <img className="paneErrorIcon" src={InfoColor} alt="Error" />
-            </span>
-            <span className="warningErrorDetailsLinkContainer">
+      </MessageBanner>
+      {/* {maybeSubQuery && ( */}
+      <MessageBanner
+        messageId="QueryEditor.SubQueryWarning"
+        visible={maybeSubQuery}
+        className={styles.queryResultsMessage}
+      >
         We detected you may be using a subquery. To learn more about subqueries effectively,{" "}
-              <a
+        <Link
           href="https://learn.microsoft.com/azure/cosmos-db/nosql/query/subquery"
           target="_blank"
-                rel="noreferrer"
+          rel="noreferrer noopener"
         >
           visit the documentation
-              </a>
-            </span>
-          </div>
-        </div>
-      )}
-      {/* <!-- Query Errors Tab - Start--> */}
-      {error && (
-        <div className="active queryErrorsHeaderContainer">
-          <span className="queryErrors" data-toggle="tab">
-            Errors
-          </span>
-        </div>
-      )}
-      {/* <!-- Query Errors Tab - End --> */}
+        </Link>
+      </MessageBanner>
       {/* <!-- Query Results & Errors Content Container - Start--> */}
-      <div className="queryResultErrorContentContainer">
-        {!queryResults && !error && !isExecuting && (
-          <div className="queryEditorWatermark">
-            <p>
-              <img src={RunQuery} alt="Execute Query Watermark" />
-            </p>
-            <p className="queryEditorWatermarkText">Execute a query to see the results</p>
-          </div>
-        )}
-        {(queryResults || !!error) && (
-          <div className="queryResultsErrorsContent">
-            {!error && (
-              <Pivot aria-label="Successful execution" style={{ height: "100%" }}>
-                <PivotItem
-                  headerText="Results"
-                  headerButtonProps={{
-                    "data-order": 1,
-                    "data-title": "Results",
-                  }}
-                  style={{ height: "100%" }}
-                >
-                  <div className="result-metadata">
-                    <span>
-                      <span>
-                        {queryResults.itemCount > 0
-                          ? `${queryResults.firstItemIndex} - ${queryResults.lastItemIndex}`
-                          : `0 - 0`}
-                      </span>
-                    </span>
-                    {queryResults.hasMoreResults && (
-                      <>
-                        <span className="queryResultDivider">|</span>
-                        <span className="queryResultNextEnable">
-                          <a onClick={() => onFetchNextPageClick()}>
-                            <span>Load more</span>
-                            <img className="queryResultnextImg" src={QueryEditorNext} alt="Fetch next page" />
-                          </a>
-                        </span>
-                      </>
-                    )}
-                    <IconButton
-                      style={{
-                        height: "100%",
-                        verticalAlign: "middle",
-                        float: "right",
-                      }}
-                      iconProps={{ imageProps: { src: CopilotCopy } }}
-                      title="Copy to Clipboard"
-                      ariaLabel="Copy"
-                      onClick={onClickCopyResults}
+      {errors.length > 0 ? (
+        <ErrorList errors={errors} />
+      ) : queryResults ? (
+        <ResultsView
+          queryResults={queryResults}
+          executeQueryDocumentsPage={executeQueryDocumentsPage}
+          isMongoDB={isMongoDB}
         />
-                  </div>
-                  {queryResults && queryResultsString?.length > 0 && !error && (
-                    <div
-                      style={{
-                        paddingBottom: "100px",
-                        height: "100%",
-                      }}
-                    >
-                      <EditorReact
-                        language={"json"}
-                        content={queryResultsString}
-                        isReadOnly={true}
-                        ariaLabel={"Query results"}
-                      />
-                    </div>
-                  )}
-                </PivotItem>
-                <PivotItem
-                  headerText="Query Stats"
-                  headerButtonProps={{
-                    "data-order": 2,
-                    "data-title": "Query Stats",
-                  }}
-                  style={{ height: "100%", overflowY: "scroll" }}
-                >
-                  {queryResults && !error && (
-                    <div className="queryMetricsSummaryContainer">
-                      <div className="queryMetricsSummary">
-                        <h3>Query Statistics</h3>
-                        <DetailsList
-                          items={generateQueryStatsItems()}
-                          columns={columns}
-                          selectionMode={SelectionMode.none}
-                          layoutMode={DetailsListLayoutMode.justified}
-                          compact={true}
-                        />
-                      </div>
-                      {userContext.apiType === "SQL" && (
-                        <div className="downloadMetricsLinkContainer">
-                          <a
-                            id="downloadMetricsLink"
-                            role="button"
-                            tabIndex={0}
-                            onClick={() => onDownloadQueryMetricsCsvClick()}
-                            onKeyPress={(event: React.KeyboardEvent<HTMLAnchorElement>) =>
-                              onDownloadQueryMetricsCsvKeyPress(event)
-                            }
-                          >
-                            <img
-                              className="downloadCsvImg"
-                              src={DownloadQueryMetrics}
-                              alt="download query metrics csv"
-                            />
-                            <span>Per-partition query metrics (CSV)</span>
-                          </a>
-                        </div>
+      ) : (
+        <ExecuteQueryCallToAction />
       )}
     </div>
-                  )}
-                </PivotItem>
-              </Pivot>
-            )}
-            {/* <!-- Query Errors Content - Start--> */}
-            {!!error && (
-              <div className="tab-pane active">
-                <div className="errorContent">
-                  <span className="errorMessage">{error}</span>
-                  <span className="errorDetailsLink">
-                    <a
-                      onClick={() => onErrorDetailsClick()}
-                      onKeyPress={(event: React.KeyboardEvent<HTMLAnchorElement>) => onErrorDetailsKeyPress(event)}
-                      id="error-display"
-                      tabIndex={0}
-                      aria-label="Error details link"
-                    >
-                      More details
-                    </a>
-                  </span>
-                </div>
-              </div>
-            )}
-            {/* <!-- Query Errors Content - End--> */}
-          </div>
-        )}
-      </div>
-    </Stack>
   );
 };

src/Explorer/Tabs/QueryTab/QueryTab.tsx

@@ -7,10 +7,11 @@ import * as DataModels from "../../../Contracts/DataModels";
 import type { QueryTabOptions } from "../../../Contracts/ViewModels";
 import { useTabs } from "../../../hooks/useTabs";
 import Explorer from "../../Explorer";
-import QueryTabComponent, {
+import {
   IQueryTabComponentProps,
   ITabAccessor,
-  QueryTabFunctionComponent,
+  QueryTabComponent,
+  QueryTabCopilotComponent,
 } from "../../Tabs/QueryTab/QueryTabComponent";
 import TabsBase from "../TabsBase";
 
@@ -49,7 +50,7 @@ export class NewQueryTab extends TabsBase {
   public render(): JSX.Element {
     return userContext.apiType === "SQL" ? (
       <CopilotProvider>
-        <QueryTabFunctionComponent {...this.iQueryTabComponentProps} />
+        <QueryTabCopilotComponent {...this.iQueryTabComponentProps} />
       </CopilotProvider>
     ) : (
       <QueryTabComponent {...this.iQueryTabComponentProps} />

src/Explorer/Tabs/QueryTab/QueryTabComponent.test.tsx

@@ -2,11 +2,14 @@ import { fireEvent, render } from "@testing-library/react";
 import { CollectionTabKind } from "Contracts/ViewModels";
 import { CopilotProvider } from "Explorer/QueryCopilot/QueryCopilotContext";
 import { QueryCopilotPromptbar } from "Explorer/QueryCopilot/QueryCopilotPromptbar";
-import QueryTabComponent, {
+import { CopilotSubComponentNames } from "Explorer/QueryCopilot/QueryCopilotUtilities";
+import {
   IQueryTabComponentProps,
-  QueryTabFunctionComponent,
+  QueryTabComponent,
+  QueryTabCopilotComponent,
 } from "Explorer/Tabs/QueryTab/QueryTabComponent";
 import TabsBase from "Explorer/Tabs/TabsBase";
+import { AppStateComponentNames, StorePath } from "Shared/AppStatePersistenceUtility";
 import { updateUserContext, userContext } from "UserContext";
 import { mount } from "enzyme";
 import { useQueryCopilot } from "hooks/useQueryCopilot";
@@ -15,6 +18,24 @@ import React from "react";
 
 jest.mock("Explorer/Controls/Editor/EditorReact");
 
+const loadState = (path: StorePath) => {
+  if (
+    path.componentName === AppStateComponentNames.QueryCopilot &&
+    path.subComponentName === CopilotSubComponentNames.toggleStatus
+  ) {
+    return true;
+  } else {
+    return undefined;
+  }
+};
+
+jest.mock("Shared/AppStatePersistenceUtility", () => ({
+  loadState,
+  AppStateComponentNames: {
+    QueryCopilot: "QueryCopilot",
+  },
+}));
+
 describe("QueryTabComponent", () => {
   const mockStore = useQueryCopilot.getState();
   beforeEach(() => {
@@ -31,7 +52,7 @@ describe("QueryTabComponent", () => {
       },
     });
     const propsMock: Readonly<IQueryTabComponentProps> = {
-      collection: { databaseId: "CopilotSampleDb" },
+      collection: { databaseId: "CopilotSampleDB" },
       onTabAccessor: () => jest.fn(),
       isExecutionError: false,
       tabId: "mockTabId",
@@ -42,13 +63,24 @@ describe("QueryTabComponent", () => {
 
     const { container } = render(<QueryTabComponent {...propsMock} />);
 
-    const launchCopilotButton = container.querySelector(".queryEditorWatermarkText");
+    const launchCopilotButton = container.querySelector('[data-test="QueryTab/ResultsPane/ExecuteCTA"]');
     fireEvent.keyDown(launchCopilotButton, { key: "c", altKey: true });
 
     expect(mockStore.setShowCopilotSidebar).toHaveBeenCalledWith(true);
   });
 
   it("copilot should be enabled by default when tab is active", () => {
+    updateUserContext({
+      databaseAccount: {
+        name: "name",
+        properties: undefined,
+        id: "",
+        location: "",
+        type: "",
+        kind: "",
+      },
+    });
+
     useQueryCopilot.getState().setCopilotEnabled(true);
     useQueryCopilot.getState().setCopilotUserDBEnabled(true);
     const activeTab = new TabsBase({
@@ -70,7 +102,7 @@ describe("QueryTabComponent", () => {
 
     const container = mount(
       <CopilotProvider>
-        <QueryTabFunctionComponent {...propsMock} />
+        <QueryTabCopilotComponent {...propsMock} />
       </CopilotProvider>,
     );
     expect(container.find(QueryCopilotPromptbar).exists()).toBe(true);

src/Explorer/Tabs/QueryTab/QueryTabComponent.tsx

@@ -1,15 +1,21 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
 /* eslint-disable no-console */
 import { FeedOptions, QueryOperationOptions } from "@azure/cosmos";
+import QueryError, { createMonacoErrorLocationResolver, createMonacoMarkersForQueryErrors } from "Common/QueryError";
 import { SplitterDirection } from "Common/Splitter";
 import { Platform, configContext } from "ConfigContext";
 import { useDialog } from "Explorer/Controls/Dialog";
+import { monaco } from "Explorer/LazyMonaco";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import { QueryCopilotFeedbackModal } from "Explorer/QueryCopilot/Modal/QueryCopilotFeedbackModal";
 import { useCopilotStore } from "Explorer/QueryCopilot/QueryCopilotContext";
 import { QueryCopilotPromptbar } from "Explorer/QueryCopilot/QueryCopilotPromptbar";
+import { readCopilotToggleStatus, saveCopilotToggleStatus } from "Explorer/QueryCopilot/QueryCopilotUtilities";
 import { OnExecuteQueryClick, QueryDocumentsPerPage } from "Explorer/QueryCopilot/Shared/QueryCopilotClient";
 import { QueryCopilotSidebar } from "Explorer/QueryCopilot/V2/Sidebar/QueryCopilotSidebar";
 import { QueryResultSection } from "Explorer/Tabs/QueryTab/QueryResultSection";
+import { QueryTabStyles, useQueryTabStyles } from "Explorer/Tabs/QueryTab/Styles";
+import { CosmosFluentProvider } from "Explorer/Theme/ThemeUtil";
 import { useSelectedNode } from "Explorer/useSelectedNode";
 import { KeyboardAction } from "KeyboardShortcuts";
 import { QueryConstants } from "Shared/Constants";
@@ -21,10 +27,10 @@ import {
   ruThresholdEnabled,
 } from "Shared/StorageUtility";
 import { Action } from "Shared/Telemetry/TelemetryConstants";
+import { Allotment } from "allotment";
 import { QueryCopilotState, useQueryCopilot } from "hooks/useQueryCopilot";
 import { TabsState, useTabs } from "hooks/useTabs";
-import React, { Fragment } from "react";
-import SplitterLayout from "react-splitter-layout";
+import React, { Fragment, createRef } from "react";
 import "react-splitter-layout/lib/index.css";
 import { format } from "react-string-format";
 import QueryCommandIcon from "../../../../images/CopilotCommand.svg";
@@ -35,7 +41,6 @@ import ExecuteQueryIcon from "../../../../images/ExecuteQuery.svg";
 import CheckIcon from "../../../../images/check-1.svg";
 import SaveQueryIcon from "../../../../images/save-cosmos.svg";
 import { NormalizedEventKey } from "../../../Common/Constants";
-import { getErrorMessage } from "../../../Common/ErrorHandlingUtils";
 import * as HeadersUtility from "../../../Common/HeadersUtility";
 import { MinimalQueryIterator } from "../../../Common/IteratorUtilities";
 import { queryIterator } from "../../../Common/MongoProxyClient";
@@ -43,7 +48,6 @@ import { queryDocuments } from "../../../Common/dataAccess/queryDocuments";
 import { queryDocumentsPage } from "../../../Common/dataAccess/queryDocumentsPage";
 import * as DataModels from "../../../Contracts/DataModels";
 import * as ViewModels from "../../../Contracts/ViewModels";
-import * as StringUtility from "../../../Shared/StringUtility";
 import * as TelemetryProcessor from "../../../Shared/Telemetry/TelemetryProcessor";
 import { userContext } from "../../../UserContext";
 import * as QueryUtils from "../../../Utils/QueryUtils";
@@ -51,7 +55,6 @@ import { useSidePanel } from "../../../hooks/useSidePanel";
 import { CommandButtonComponentProps } from "../../Controls/CommandButton/CommandButtonComponent";
 import { EditorReact } from "../../Controls/Editor/EditorReact";
 import Explorer from "../../Explorer";
-import { useCommandBar } from "../../Menus/CommandBar/CommandBarComponentAdapter";
 import { BrowseQueriesPane } from "../../Panes/BrowseQueriesPane/BrowseQueriesPane";
 import { SaveQueryPane } from "../../Panes/SaveQueryPane/SaveQueryPane";
 import TabsBase from "../TabsBase";
@@ -102,8 +105,9 @@ interface IQueryTabStates {
   toggleState: ToggleState;
   sqlQueryEditorContent: string;
   selectedContent: string;
+  selection?: monaco.Selection;
+  executedSelection?: monaco.Selection; // We need to capture the selection that was used when executing, in case the user changes their section while the query is executing.
   queryResults: ViewModels.QueryResults;
-  error: string;
   isExecutionError: boolean;
   isExecuting: boolean;
   showCopilotSidebar: boolean;
@@ -112,9 +116,12 @@ interface IQueryTabStates {
   copilotActive: boolean;
   currentTabActive: boolean;
   queryResultsView: SplitterDirection;
+  errors?: QueryError[];
+  modelMarkers?: monaco.editor.IMarkerData[];
 }
 
-export const QueryTabFunctionComponent = (props: IQueryTabComponentProps): any => {
+export const QueryTabCopilotComponent = (props: IQueryTabComponentProps): any => {
+  const styles = useQueryTabStyles();
   const copilotStore = useCopilotStore();
   const isSampleCopilotActive = useSelectedNode.getState().isQueryCopilotCollectionSelected();
   const queryTabProps = {
@@ -125,10 +132,20 @@ export const QueryTabFunctionComponent = (props: IQueryTabComponentProps): any =
     isSampleCopilotActive: isSampleCopilotActive,
     copilotStore: copilotStore,
   };
-  return <QueryTabComponent {...queryTabProps}></QueryTabComponent>;
+  return <QueryTabComponentImpl styles={styles} {...queryTabProps}></QueryTabComponentImpl>;
 };
 
-export default class QueryTabComponent extends React.Component<IQueryTabComponentProps, IQueryTabStates> {
+export const QueryTabComponent = (props: IQueryTabComponentProps): any => {
+  const styles = useQueryTabStyles();
+  return <QueryTabComponentImpl styles={styles} {...props}></QueryTabComponentImpl>;
+};
+
+type QueryTabComponentImplProps = IQueryTabComponentProps & {
+  styles: QueryTabStyles;
+};
+
+// Inner (legacy) class component. We only use this component via one of the two functional components above (since we need to use the `useQueryTabStyles` hook).
+class QueryTabComponentImpl extends React.Component<QueryTabComponentImplProps, IQueryTabStates> {
   public queryEditorId: string;
   public executeQueryButton: Button;
   public saveQueryButton: Button;
@@ -139,16 +156,19 @@ export default class QueryTabComponent extends React.Component<IQueryTabComponen
   public isCopilotTabActive: boolean;
   private _iterator: MinimalQueryIterator;
   private queryAbortController: AbortController;
+  queryEditor: React.RefObject<EditorReact>;
 
-  constructor(props: IQueryTabComponentProps) {
+  constructor(props: QueryTabComponentImplProps) {
     super(props);
 
+    this.queryEditor = createRef<EditorReact>();
+
     this.state = {
       toggleState: ToggleState.Result,
       sqlQueryEditorContent: props.isPreferredApiMongoDB ? "{}" : props.queryText || "SELECT * FROM c",
       selectedContent: "",
       queryResults: undefined,
-      error: "",
+      errors: [],
       isExecutionError: this.props.isExecutionError,
       isExecuting: false,
       showCopilotSidebar: useQueryCopilot.getState().showCopilotSidebar,
@@ -189,13 +209,7 @@ export default class QueryTabComponent extends React.Component<IQueryTabComponen
 
   private _queryCopilotActive(): boolean {
     if (this.props.copilotEnabled) {
-      const cachedCopilotToggleStatus: string = localStorage.getItem(
-        `${userContext.databaseAccount?.id}-queryCopilotToggleStatus`,
-      );
-      const copilotInitialActive: boolean = cachedCopilotToggleStatus
-        ? StringUtility.toBoolean(cachedCopilotToggleStatus)
-        : true;
-      return copilotInitialActive;
+      return readCopilotToggleStatus(userContext.databaseAccount);
     }
     return false;
   }
@@ -221,9 +235,10 @@ export default class QueryTabComponent extends React.Component<IQueryTabComponen
 
   public onExecuteQueryClick = async (): Promise<void> => {
     this._iterator = undefined;
+
     setTimeout(async () => {
       await this._executeQueryDocumentsPage(0);
-    }, 100);
+    }, 100); // TODO: Revert this
     if (this.state.copilotActive) {
       const query = this.state.sqlQueryEditorContent.split("\r\n")?.pop();
       const isqueryEdited = this.props.copilotStore.generatedQuery && this.props.copilotStore.generatedQuery !== query;
@@ -302,23 +317,22 @@ export default class QueryTabComponent extends React.Component<IQueryTabComponen
   }
 
   private async _executeQueryDocumentsPage(firstItemIndex: number): Promise<void> {
+    // Capture the query content and the selection being executed (if any).
+    const query = this.state.selectedContent || this.state.sqlQueryEditorContent;
+    const selection = this.state.selection;
+    this.setState({
+      // Track the executed selection so that we can evaluate error positions relative to it, even if the user changes their current selection.
+      executedSelection: selection,
+    });
+
     this.queryAbortController = new AbortController();
     if (this._iterator === undefined) {
       this._iterator = this.props.isPreferredApiMongoDB
-        ? queryIterator(
-            this.props.collection.databaseId,
-            this.props.viewModelcollection,
-            this.state.selectedContent || this.state.sqlQueryEditorContent,
-          )
-        : queryDocuments(
-            this.props.collection.databaseId,
-            this.props.collection.id(),
-            this.state.selectedContent || this.state.sqlQueryEditorContent,
-            {
+        ? queryIterator(this.props.collection.databaseId, this.props.viewModelcollection, query)
+        : queryDocuments(this.props.collection.databaseId, this.props.collection.id(), query, {
             enableCrossPartitionQuery: HeadersUtility.shouldEnableCrossPartitionKey(),
             abortSignal: this.queryAbortController.signal,
-            } as unknown as FeedOptions,
-          );
+          } as unknown as FeedOptions);
     }
 
     await this._queryDocumentsPage(firstItemIndex);
@@ -383,18 +397,22 @@ export default class QueryTabComponent extends React.Component<IQueryTabComponen
         firstItemIndex,
         queryDocuments,
       );
-      this.setState({ queryResults, error: "" });
+      this.setState({ queryResults, errors: [] });
     } catch (error) {
       this.props.tabsBaseInstance.isExecutionError(true);
       this.setState({
         isExecutionError: true,
       });
-      const errorMessage = getErrorMessage(error);
-      this.setState({
-        error: errorMessage,
-      });
 
-      document.getElementById("error-display").focus();
+      // Try to parse this as a query error
+      const queryErrors = QueryError.tryParse(
+        error,
+        createMonacoErrorLocationResolver(this.queryEditor.current.editor, this.state.executedSelection),
+      );
+      this.setState({
+        errors: queryErrors,
+        modelMarkers: createMonacoMarkersForQueryErrors(queryErrors),
+      });
     } finally {
       this.props.tabsBaseInstance.isExecuting(false);
       this.setState({
@@ -560,7 +578,7 @@ export default class QueryTabComponent extends React.Component<IQueryTabComponen
   private _toggleCopilot = (active: boolean) => {
     this.setState({ copilotActive: active });
     useQueryCopilot.getState().setCopilotEnabledforExecution(active);
-    localStorage.setItem(`${userContext.databaseAccount?.id}-queryCopilotToggleStatus`, active.toString());
+    saveCopilotToggleStatus(userContext.databaseAccount, active);
 
     TelemetryProcessor.traceSuccess(active ? Action.ActivateQueryCopilot : Action.DeactivateQueryCopilot, {
       databaseName: this.props.collection.databaseId,
@@ -584,6 +602,9 @@ export default class QueryTabComponent extends React.Component<IQueryTabComponen
     this.setState({
       sqlQueryEditorContent: newContent,
       queryCopilotGeneratedQuery: "",
+
+      // Clear the markers when the user edits the document.
+      modelMarkers: [],
     });
     if (this.isPreferredApiMongoDB) {
       if (newContent.length > 0) {
@@ -604,14 +625,16 @@ export default class QueryTabComponent extends React.Component<IQueryTabComponen
     useCommandBar.getState().setContextButtons(this.getTabsButtons());
   }
 
-  public onSelectedContent(selectedContent: string): void {
+  public onSelectedContent(selectedContent: string, selection: monaco.Selection): void {
     if (selectedContent.trim().length > 0) {
       this.setState({
         selectedContent,
+        selection,
       });
     } else {
       this.setState({
         selectedContent: "",
+        selection: undefined,
       });
     }
 
@@ -668,9 +691,10 @@ export default class QueryTabComponent extends React.Component<IQueryTabComponen
   }
 
   private getEditorAndQueryResult(): JSX.Element {
+    const vertical = this.state.queryResultsView === SplitterDirection.Horizontal;
     return (
       <Fragment>
-        <div className="tab-pane" id={this.props.tabId} role="tabpanel">
+        <CosmosFluentProvider id={this.props.tabId} className={this.props.styles.queryTab} role="tabpanel">
           {this.props.copilotEnabled && this.state.currentTabActive && this.state.copilotActive && (
             <QueryCopilotPromptbar
               explorer={this.props.collection.container}
@@ -679,40 +703,33 @@ export default class QueryTabComponent extends React.Component<IQueryTabComponen
               containerId={this.props.collection.id()}
             ></QueryCopilotPromptbar>
           )}
-          <div className="tabPaneContentContainer">
-            <SplitterLayout
-              primaryIndex={0}
-              primaryMinSize={20}
-              secondaryMinSize={20}
-              // Percentage is a bit better when the splitter flips from vertical to horizontal.
-              percentage={true}
-              // NOTE: It is intentional that this looks reversed!
-              // The 'vertical' property refers to the stacking of the panes so is the opposite of the orientation of the splitter itself
-              // (vertically stacked => horizontal splitter)
-              // Our setting refers to the orientation of the splitter, so we need to reverse it here.
-              vertical={this.state.queryResultsView === SplitterDirection.Horizontal}
-            >
-              <Fragment>
-                <div className="queryEditor" style={{ height: "100%" }}>
+          {/* Set 'key' to the value of vertical to force re-rendering when vertical changes, to work around https://github.com/johnwalley/allotment/issues/457 */}
+          <Allotment key={vertical.toString()} vertical={vertical}>
+            <Allotment.Pane data-test="QueryTab/EditorPane">
               <EditorReact
+                ref={this.queryEditor}
+                className={this.props.styles.queryEditor}
                 language={"sql"}
                 content={this.getEditorContent()}
+                modelMarkers={this.state.modelMarkers}
                 isReadOnly={false}
                 wordWrap={"on"}
                 ariaLabel={"Editing Query"}
                 lineNumbers={"on"}
                 onContentChanged={(newContent: string) => this.onChangeContent(newContent)}
-                    onContentSelected={(selectedContent: string) => this.onSelectedContent(selectedContent)}
+                onContentSelected={(selectedContent: string, selection: monaco.Selection) =>
+                  this.onSelectedContent(selectedContent, selection)
+                }
               />
-                </div>
-              </Fragment>
+            </Allotment.Pane>
+            <Allotment.Pane>
               {this.props.isSampleCopilotActive ? (
                 <QueryResultSection
                   isMongoDB={this.props.isPreferredApiMongoDB}
                   queryEditorContent={this.state.sqlQueryEditorContent}
-                  error={this.props.copilotStore?.errorMessage}
-                  queryResults={this.props.copilotStore?.queryResults}
+                  errors={this.props.copilotStore?.errors}
                   isExecuting={this.props.copilotStore?.isExecuting}
+                  queryResults={this.props.copilotStore?.queryResults}
                   executeQueryDocumentsPage={(firstItemIndex: number) =>
                     QueryDocumentsPerPage(
                       firstItemIndex,
@@ -725,17 +742,17 @@ export default class QueryTabComponent extends React.Component<IQueryTabComponen
                 <QueryResultSection
                   isMongoDB={this.props.isPreferredApiMongoDB}
                   queryEditorContent={this.state.sqlQueryEditorContent}
-                  error={this.state.error}
-                  queryResults={this.state.queryResults}
+                  errors={this.state.errors}
                   isExecuting={this.state.isExecuting}
+                  queryResults={this.state.queryResults}
                   executeQueryDocumentsPage={(firstItemIndex: number) =>
                     this._executeQueryDocumentsPage(firstItemIndex)
                   }
                 />
               )}
-            </SplitterLayout>
-          </div>
-        </div>
+            </Allotment.Pane>
+          </Allotment>
+        </CosmosFluentProvider>
         {this.props.copilotEnabled && this.props.copilotStore?.showFeedbackModal && (
           <QueryCopilotFeedbackModal
             explorer={this.props.collection.container}
@@ -751,7 +768,7 @@ export default class QueryTabComponent extends React.Component<IQueryTabComponen
   render(): JSX.Element {
     const shouldScaleElements = this.state.showCopilotSidebar && this.isCopilotTabActive;
     return (
-      <div style={{ display: "flex", flexDirection: "row", height: "100%" }}>
+      <div data-test="QueryTab" style={{ display: "flex", flexDirection: "row", height: "100%" }}>
         <div style={{ width: shouldScaleElements ? "70%" : "100%", height: "100%" }}>
           {this.getEditorAndQueryResult()}
         </div>

src/Explorer/Tabs/QueryTab/ResultsView.tsx

@@ -0,0 +1,396 @@
+import {
+  Button,
+  DataGrid,
+  DataGridBody,
+  DataGridCell,
+  DataGridHeader,
+  DataGridHeaderCell,
+  DataGridRow,
+  SelectTabData,
+  SelectTabEvent,
+  Tab,
+  TabList,
+  TableColumnDefinition,
+  createTableColumn,
+} from "@fluentui/react-components";
+import { ArrowDownloadRegular, CopyRegular } from "@fluentui/react-icons";
+import { HttpHeaders } from "Common/Constants";
+import MongoUtility from "Common/MongoUtility";
+import { QueryMetrics } from "Contracts/DataModels";
+import { EditorReact } from "Explorer/Controls/Editor/EditorReact";
+import { IDocument } from "Explorer/Tabs/QueryTab/QueryTabComponent";
+import { useQueryTabStyles } from "Explorer/Tabs/QueryTab/Styles";
+import { userContext } from "UserContext";
+import copy from "clipboard-copy";
+import React, { useCallback, useState } from "react";
+import { ResultsViewProps } from "./QueryResultSection";
+
+enum ResultsTabs {
+  Results = "results",
+  QueryStats = "queryStats",
+}
+
+const ResultsTab: React.FC<ResultsViewProps> = ({ queryResults, isMongoDB, executeQueryDocumentsPage }) => {
+  const styles = useQueryTabStyles();
+  const queryResultsString = queryResults
+    ? isMongoDB
+      ? MongoUtility.tojson(queryResults.documents, undefined, false)
+      : JSON.stringify(queryResults.documents, undefined, 4)
+    : "";
+
+  const onClickCopyResults = (): void => {
+    copy(queryResultsString);
+  };
+
+  const onFetchNextPageClick = async (): Promise<void> => {
+    const { firstItemIndex, itemCount } = queryResults;
+    await executeQueryDocumentsPage(firstItemIndex + itemCount - 1);
+  };
+
+  return (
+    <>
+      <div className={styles.queryResultsBar}>
+        <div>
+          {queryResults.itemCount > 0 ? `${queryResults.firstItemIndex} - ${queryResults.lastItemIndex}` : `0 - 0`}
+        </div>
+        {queryResults.hasMoreResults && (
+          <a href="#" onClick={() => onFetchNextPageClick()}>
+            Load more
+          </a>
+        )}
+        <div className={styles.flexGrowSpacer} />
+        <Button
+          size="small"
+          appearance="transparent"
+          icon={<CopyRegular />}
+          title="Copy to Clipboard"
+          aria-label="Copy"
+          onClick={onClickCopyResults}
+        />
+      </div>
+      <div className={styles.queryResultsViewer}>
+        <EditorReact language={"json"} content={queryResultsString} isReadOnly={true} ariaLabel={"Query results"} />
+      </div>
+    </>
+  );
+};
+
+const QueryStatsTab: React.FC<Pick<ResultsViewProps, "queryResults">> = ({ queryResults }) => {
+  const styles = useQueryTabStyles();
+  const queryMetrics = React.useRef(queryResults?.headers?.[HttpHeaders.queryMetrics]);
+  React.useEffect(() => {
+    const latestQueryMetrics = queryResults?.headers?.[HttpHeaders.queryMetrics];
+    if (latestQueryMetrics && Object.keys(latestQueryMetrics).length > 0) {
+      queryMetrics.current = latestQueryMetrics;
+    }
+  }, [queryResults]);
+
+  const getAggregatedQueryMetrics = (): QueryMetrics => {
+    const aggregatedQueryMetrics = {
+      documentLoadTime: 0,
+      documentWriteTime: 0,
+      indexHitDocumentCount: 0,
+      outputDocumentCount: 0,
+      outputDocumentSize: 0,
+      indexLookupTime: 0,
+      retrievedDocumentCount: 0,
+      retrievedDocumentSize: 0,
+      vmExecutionTime: 0,
+      runtimeExecutionTimes: {
+        queryEngineExecutionTime: 0,
+        systemFunctionExecutionTime: 0,
+        userDefinedFunctionExecutionTime: 0,
+      },
+      totalQueryExecutionTime: 0,
+    } as QueryMetrics;
+
+    if (queryMetrics.current) {
+      Object.keys(queryMetrics.current).forEach((partitionKeyRangeId) => {
+        const queryMetricsPerPartition = queryMetrics.current[partitionKeyRangeId];
+        if (!queryMetricsPerPartition) {
+          return;
+        }
+        aggregatedQueryMetrics.documentLoadTime += queryMetricsPerPartition.documentLoadTime?.totalMilliseconds() || 0;
+        aggregatedQueryMetrics.documentWriteTime +=
+          queryMetricsPerPartition.documentWriteTime?.totalMilliseconds() || 0;
+        aggregatedQueryMetrics.indexHitDocumentCount += queryMetricsPerPartition.indexHitDocumentCount || 0;
+        aggregatedQueryMetrics.outputDocumentCount += queryMetricsPerPartition.outputDocumentCount || 0;
+        aggregatedQueryMetrics.outputDocumentSize += queryMetricsPerPartition.outputDocumentSize || 0;
+        aggregatedQueryMetrics.indexLookupTime += queryMetricsPerPartition.indexLookupTime?.totalMilliseconds() || 0;
+        aggregatedQueryMetrics.retrievedDocumentCount += queryMetricsPerPartition.retrievedDocumentCount || 0;
+        aggregatedQueryMetrics.retrievedDocumentSize += queryMetricsPerPartition.retrievedDocumentSize || 0;
+        aggregatedQueryMetrics.vmExecutionTime += queryMetricsPerPartition.vmExecutionTime?.totalMilliseconds() || 0;
+        aggregatedQueryMetrics.totalQueryExecutionTime +=
+          queryMetricsPerPartition.totalQueryExecutionTime?.totalMilliseconds() || 0;
+        aggregatedQueryMetrics.runtimeExecutionTimes.queryEngineExecutionTime +=
+          queryMetricsPerPartition.runtimeExecutionTimes?.queryEngineExecutionTime?.totalMilliseconds() || 0;
+        aggregatedQueryMetrics.runtimeExecutionTimes.systemFunctionExecutionTime +=
+          queryMetricsPerPartition.runtimeExecutionTimes?.systemFunctionExecutionTime?.totalMilliseconds() || 0;
+        aggregatedQueryMetrics.runtimeExecutionTimes.userDefinedFunctionExecutionTime +=
+          queryMetricsPerPartition.runtimeExecutionTimes?.userDefinedFunctionExecutionTime?.totalMilliseconds() || 0;
+      });
+    }
+
+    return aggregatedQueryMetrics;
+  };
+
+  const columns: TableColumnDefinition<IDocument>[] = [
+    createTableColumn<IDocument>({
+      columnId: "metric",
+      renderHeaderCell: () => "Metric",
+      renderCell: (item) => item.metric,
+    }),
+    createTableColumn<IDocument>({
+      columnId: "value",
+      renderHeaderCell: () => "Value",
+      renderCell: (item) => item.value,
+    }),
+  ];
+
+  const generateQueryStatsItems = (): IDocument[] => {
+    const items: IDocument[] = [
+      {
+        metric: "Request Charge",
+        value: `${queryResults.requestCharge} RUs`,
+        toolTip: "Request Charge",
+      },
+      {
+        metric: "Showing Results",
+        value: queryResults.itemCount > 0 ? `${queryResults.firstItemIndex} - ${queryResults.lastItemIndex}` : `0 - 0`,
+        toolTip: "Showing Results",
+      },
+    ];
+
+    if (userContext.apiType === "SQL") {
+      const aggregatedQueryMetrics = getAggregatedQueryMetrics();
+      items.push(
+        {
+          metric: "Retrieved document count",
+          value: aggregatedQueryMetrics.retrievedDocumentCount?.toString() || "",
+          toolTip: "Total number of retrieved documents",
+        },
+        {
+          metric: "Retrieved document size",
+          value: `${aggregatedQueryMetrics.retrievedDocumentSize?.toString() || 0} bytes`,
+          toolTip: "Total size of retrieved documents in bytes",
+        },
+        {
+          metric: "Output document count",
+          value: aggregatedQueryMetrics.outputDocumentCount?.toString() || "",
+          toolTip: "Number of output documents",
+        },
+        {
+          metric: "Output document size",
+          value: `${aggregatedQueryMetrics.outputDocumentSize?.toString() || 0} bytes`,
+          toolTip: "Total size of output documents in bytes",
+        },
+        {
+          metric: "Index hit document count",
+          value: aggregatedQueryMetrics.indexHitDocumentCount?.toString() || "",
+          toolTip: "Total number of documents matched by the filter",
+        },
+        {
+          metric: "Index lookup time",
+          value: `${aggregatedQueryMetrics.indexLookupTime?.toString() || 0} ms`,
+          toolTip: "Time spent in physical index layer",
+        },
+        {
+          metric: "Document load time",
+          value: `${aggregatedQueryMetrics.documentLoadTime?.toString() || 0} ms`,
+          toolTip: "Time spent in loading documents",
+        },
+        {
+          metric: "Query engine execution time",
+          value: `${aggregatedQueryMetrics.runtimeExecutionTimes?.queryEngineExecutionTime?.toString() || 0} ms`,
+          toolTip:
+            "Time spent by the query engine to execute the query expression (excludes other execution times like load documents or write results)",
+        },
+        {
+          metric: "System function execution time",
+          value: `${aggregatedQueryMetrics.runtimeExecutionTimes?.systemFunctionExecutionTime?.toString() || 0} ms`,
+          toolTip: "Total time spent executing system (built-in) functions",
+        },
+        {
+          metric: "User defined function execution time",
+          value: `${
+            aggregatedQueryMetrics.runtimeExecutionTimes?.userDefinedFunctionExecutionTime?.toString() || 0
+          } ms`,
+          toolTip: "Total time spent executing user-defined functions",
+        },
+        {
+          metric: "Document write time",
+          value: `${aggregatedQueryMetrics.documentWriteTime.toString() || 0} ms`,
+          toolTip: "Time spent to write query result set to response buffer",
+        },
+      );
+    }
+
+    if (queryResults.roundTrips) {
+      items.push({
+        metric: "Round Trips",
+        value: queryResults.roundTrips?.toString(),
+        toolTip: "Number of round trips",
+      });
+    }
+
+    if (queryResults.activityId) {
+      items.push({
+        metric: "Activity id",
+        value: queryResults.activityId,
+        toolTip: "",
+      });
+    }
+
+    return items;
+  };
+
+  const generateQueryMetricsCsvData = (): string => {
+    if (queryMetrics.current) {
+      let csvData =
+        [
+          "Partition key range id",
+          "Retrieved document count",
+          "Retrieved document size (in bytes)",
+          "Output document count",
+          "Output document size (in bytes)",
+          "Index hit document count",
+          "Index lookup time (ms)",
+          "Document load time (ms)",
+          "Query engine execution time (ms)",
+          "System function execution time (ms)",
+          "User defined function execution time (ms)",
+          "Document write time (ms)",
+        ].join(",") + "\n";
+
+      Object.keys(queryMetrics.current).forEach((partitionKeyRangeId) => {
+        const queryMetricsPerPartition = queryMetrics.current[partitionKeyRangeId];
+        csvData +=
+          [
+            partitionKeyRangeId,
+            queryMetricsPerPartition.retrievedDocumentCount,
+            queryMetricsPerPartition.retrievedDocumentSize,
+            queryMetricsPerPartition.outputDocumentCount,
+            queryMetricsPerPartition.outputDocumentSize,
+            queryMetricsPerPartition.indexHitDocumentCount,
+            queryMetricsPerPartition.indexLookupTime?.totalMilliseconds(),
+            queryMetricsPerPartition.documentLoadTime?.totalMilliseconds(),
+            queryMetricsPerPartition.runtimeExecutionTimes?.queryEngineExecutionTime?.totalMilliseconds(),
+            queryMetricsPerPartition.runtimeExecutionTimes?.systemFunctionExecutionTime?.totalMilliseconds(),
+            queryMetricsPerPartition.runtimeExecutionTimes?.userDefinedFunctionExecutionTime?.totalMilliseconds(),
+            queryMetricsPerPartition.documentWriteTime?.totalMilliseconds(),
+          ].join(",") + "\n";
+      });
+
+      return csvData;
+    }
+
+    return undefined;
+  };
+
+  const downloadQueryMetricsCsvData = (): void => {
+    const csvData: string = generateQueryMetricsCsvData();
+    if (!csvData) {
+      return;
+    }
+
+    if (navigator.msSaveBlob) {
+      // for IE and Edge
+      navigator.msSaveBlob(
+        new Blob([csvData], { type: "data:text/csv;charset=utf-8" }),
+        "PerPartitionQueryMetrics.csv",
+      );
+    } else {
+      const downloadLink: HTMLAnchorElement = document.createElement("a");
+      downloadLink.href = "data:text/csv;charset=utf-8," + encodeURI(csvData);
+      downloadLink.target = "_self";
+      downloadLink.download = "QueryMetricsPerPartition.csv";
+
+      // for some reason, FF displays the download prompt only when
+      // the link is added to the dom so we add and remove it
+      document.body.appendChild(downloadLink);
+      downloadLink.click();
+      downloadLink.remove();
+    }
+  };
+
+  const onDownloadQueryMetricsCsvClick = (): boolean => {
+    downloadQueryMetricsCsvData();
+    return false;
+  };
+
+  return (
+    <div className={styles.metricsGridContainer}>
+      <DataGrid
+        data-test="QueryTab/ResultsPane/ResultsView/QueryStatsList"
+        className={styles.queryStatsGrid}
+        items={generateQueryStatsItems()}
+        columns={columns}
+        sortable
+        getRowId={(item) => item.metric}
+        focusMode="composite"
+      >
+        <DataGridHeader>
+          <DataGridRow>
+            {({ renderHeaderCell }) => <DataGridHeaderCell>{renderHeaderCell()}</DataGridHeaderCell>}
+          </DataGridRow>
+        </DataGridHeader>
+        <DataGridBody<IDocument>>
+          {({ item, rowId }) => (
+            <DataGridRow<IDocument> key={rowId} data-test={`Row:${rowId}`}>
+              {({ columnId, renderCell }) => (
+                <DataGridCell data-test={`Row:${rowId}/Column:${columnId}`}>{renderCell(item)}</DataGridCell>
+              )}
+            </DataGridRow>
+          )}
+        </DataGridBody>
+      </DataGrid>
+      <div className={styles.metricsGridButtons}>
+        {userContext.apiType === "SQL" && (
+          <Button appearance="subtle" onClick={() => onDownloadQueryMetricsCsvClick()} icon={<ArrowDownloadRegular />}>
+            Per-partition query metrics (CSV)
+          </Button>
+        )}
+      </div>
+    </div>
+  );
+};
+
+export const ResultsView: React.FC<ResultsViewProps> = ({ isMongoDB, queryResults, executeQueryDocumentsPage }) => {
+  const styles = useQueryTabStyles();
+  const [activeTab, setActiveTab] = useState<ResultsTabs>(ResultsTabs.Results);
+
+  const onTabSelect = useCallback((event: SelectTabEvent, data: SelectTabData) => {
+    setActiveTab(data.value as ResultsTabs);
+  }, []);
+
+  return (
+    <div data-test="QueryTab/ResultsPane/ResultsView" className={styles.queryResultsTabPanel}>
+      <TabList selectedValue={activeTab} onTabSelect={onTabSelect}>
+        <Tab
+          data-test="QueryTab/ResultsPane/ResultsView/ResultsTab"
+          id={ResultsTabs.Results}
+          value={ResultsTabs.Results}
+        >
+          Results
+        </Tab>
+        <Tab
+          data-test="QueryTab/ResultsPane/ResultsView/QueryStatsTab"
+          id={ResultsTabs.QueryStats}
+          value={ResultsTabs.QueryStats}
+        >
+          Query Stats
+        </Tab>
+      </TabList>
+      <div className={styles.queryResultsTabContentContainer}>
+        {activeTab === ResultsTabs.Results && (
+          <ResultsTab
+            queryResults={queryResults}
+            isMongoDB={isMongoDB}
+            executeQueryDocumentsPage={executeQueryDocumentsPage}
+          />
+        )}
+        {activeTab === ResultsTabs.QueryStats && <QueryStatsTab queryResults={queryResults} />}
+      </div>
+    </div>
+  );
+};

src/Explorer/Tabs/QueryTab/Styles.ts

@@ -0,0 +1,96 @@
+import { makeStyles, shorthands } from "@fluentui/react-components";
+import { cosmosShorthands } from "Explorer/Theme/ThemeUtil";
+
+export type QueryTabStyles = ReturnType<typeof useQueryTabStyles>;
+export const useQueryTabStyles = makeStyles({
+  queryTab: {
+    height: "100%",
+    display: "flex",
+    flexDirection: "column",
+  },
+  queryEditor: {
+    ...shorthands.border("none"),
+    paddingTop: "4px",
+    height: "100%",
+    width: "100%",
+  },
+  executeCallToAction: {
+    height: "100%",
+    display: "flex",
+    justifyContent: "center",
+    alignItems: "center",
+    textAlign: "center",
+  },
+  queryResultsPanel: {
+    height: "100%",
+    display: "flex",
+    flexDirection: "column",
+  },
+  queryResultsMessage: {
+    ...shorthands.margin("5px"),
+  },
+  queryResultsBody: {
+    flexGrow: 1,
+    justifySelf: "stretch",
+  },
+  queryResultsTabPanel: {
+    height: "100%",
+    display: "flex",
+    rowGap: "12px",
+    flexDirection: "column",
+  },
+  queryResultsTabContentContainer: {
+    display: "flex",
+    flexDirection: "column",
+    flexGrow: 1,
+    paddingLeft: "12px",
+    paddingRight: "12px",
+    overflow: "auto",
+  },
+  queryResultsViewer: {
+    flexGrow: 1,
+  },
+  queryResultsBar: {
+    display: "flex",
+    flexDirection: "row",
+    columnGap: "4px",
+    paddingBottom: "4px",
+  },
+  flexGrowSpacer: {
+    flexGrow: 1,
+  },
+  queryStatsGrid: {
+    flexGrow: 1,
+    overflow: "auto",
+  },
+  metricsGridContainer: {
+    display: "flex",
+    flexDirection: "column",
+    paddingBottom: "6px",
+    maxHeight: "100%",
+  },
+  metricsGridButtons: {
+    ...cosmosShorthands.borderTop(),
+  },
+  errorListTableCell: {
+    textOverflow: "ellipsis",
+    whiteSpace: "nowrap",
+    overflow: "hidden",
+  },
+  errorListMessageCell: {
+    display: "flex",
+    flexDirection: "row",
+    width: "100%",
+    alignItems: "center",
+  },
+  errorListMessage: {
+    flexGrow: 1,
+    textOverflow: "ellipsis",
+    whiteSpace: "nowrap",
+    overflow: "hidden",
+  },
+  errorListMessageActions: {
+    display: "flex",
+    flexDirection: "row",
+  },
+});

src/Explorer/Tabs/StoredProcedureTab/StoredProcedureTabComponent.tsx

@@ -1,5 +1,6 @@
 import { Resource, StoredProcedureDefinition } from "@azure/cosmos";
 import { Pivot, PivotItem } from "@fluentui/react";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import { KeyboardAction } from "KeyboardShortcuts";
 import React from "react";
 import ExecuteQueryIcon from "../../../../images/ExecuteQuery.svg";
@@ -15,7 +16,6 @@ import { useTabs } from "../../../hooks/useTabs";
 import { CommandButtonComponentProps } from "../../Controls/CommandButton/CommandButtonComponent";
 import { EditorReact } from "../../Controls/Editor/EditorReact";
 import Explorer from "../../Explorer";
-import { useCommandBar } from "../../Menus/CommandBar/CommandBarComponentAdapter";
 import StoredProcedure from "../../Tree/StoredProcedure";
 import { useSelectedNode } from "../../useSelectedNode";
 import ScriptTabBase from "../ScriptTabBase";

src/Explorer/Tabs/Tabs.tsx

@@ -1,12 +1,13 @@
-import { IMessageBarStyles, Link, MessageBar, MessageBarButton, MessageBarType } from "@fluentui/react";
+import { IMessageBarStyles, MessageBar, MessageBarButton, MessageBarType } from "@fluentui/react";
 import { CassandraProxyEndpoints, MongoProxyEndpoints } from "Common/Constants";
 import { sendMessage } from "Common/MessageHandler";
-import { Platform, configContext, updateConfigContext } from "ConfigContext";
+import { configContext } from "ConfigContext";
 import { IpRule } from "Contracts/DataModels";
 import { MessageTypes } from "Contracts/ExplorerContracts";
 import { CollectionTabKind } from "Contracts/ViewModels";
 import Explorer from "Explorer/Explorer";
-import { useCommandBar } from "Explorer/Menus/CommandBar/CommandBarComponentAdapter";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
+import { CommandBarV2 } from "Explorer/Menus/CommandBarV2/CommandBarV2";
 import { QueryCopilotTab } from "Explorer/QueryCopilot/QueryCopilotTab";
 import { SplashScreen } from "Explorer/SplashScreen/SplashScreen";
 import { ConnectTab } from "Explorer/Tabs/ConnectTab";
@@ -16,7 +17,6 @@ import { VcoreMongoConnectTab } from "Explorer/Tabs/VCoreMongoConnectTab";
 import { VcoreMongoQuickstartTab } from "Explorer/Tabs/VCoreMongoQuickstartTab";
 import { LayoutConstants } from "Explorer/Theme/ThemeUtil";
 import { KeyboardAction, KeyboardActionGroup, useKeyboardActionGroup } from "KeyboardShortcuts";
-import { hasRUThresholdBeenConfigured } from "Shared/StorageUtility";
 import { userContext } from "UserContext";
 import { CassandraProxyOutboundIPs, MongoProxyOutboundIPs, PortalBackendIPs } from "Utils/EndpointUtils";
 import { useTeachingBubble } from "hooks/useTeachingBubble";
@@ -37,9 +37,6 @@ interface TabsProps {
 
 export const Tabs = ({ explorer }: TabsProps): JSX.Element => {
   const { openedTabs, openedReactTabs, activeTab, activeReactTab, networkSettingsWarning } = useTabs();
-  const [showRUThresholdMessageBar, setShowRUThresholdMessageBar] = useState<boolean>(
-    userContext.apiType === "SQL" && configContext.platform !== Platform.Fabric && !hasRUThresholdBeenConfigured(),
-  );
   const [
     showMongoAndCassandraProxiesNetworkSettingsWarningState,
     setShowMongoAndCassandraProxiesNetworkSettingsWarningState,
@@ -57,7 +54,8 @@ export const Tabs = ({ explorer }: TabsProps): JSX.Element => {
   const defaultMessageBarStyles: IMessageBarStyles = {
     root: {
       height: `${LayoutConstants.rowHeight}px`,
-      overflow: "auto",
+      overflow: "hidden",
+      flexDirection: "row",
     },
   };
 
@@ -86,30 +84,6 @@ export const Tabs = ({ explorer }: TabsProps): JSX.Element => {
           {networkSettingsWarning}
         </MessageBar>
       )}
-      {showRUThresholdMessageBar && (
-        <MessageBar
-          messageBarType={MessageBarType.info}
-          onDismiss={() => {
-            setShowRUThresholdMessageBar(false);
-          }}
-          styles={{
-            ...defaultMessageBarStyles,
-            innerText: {
-              fontWeight: "bold",
-            },
-          }}
-        >
-          {`To prevent queries from using excessive RUs, Data Explorer has a 5,000 RU default limit. To modify or remove
-          the limit, go to the Settings cog on the right and find "RU Threshold".`}
-          <Link
-            className="underlinedLink"
-            href="https://review.learn.microsoft.com/en-us/azure/cosmos-db/data-explorer?branch=main#configure-request-unit-threshold"
-            target="_blank"
-          >
-            Learn More
-          </Link>
-        </MessageBar>
-      )}
       {showMongoAndCassandraProxiesNetworkSettingsWarningState && (
         <MessageBar
           messageBarType={MessageBarType.warning}
@@ -118,7 +92,7 @@ export const Tabs = ({ explorer }: TabsProps): JSX.Element => {
             setShowMongoAndCassandraProxiesNetworkSettingsWarningState(false);
           }}
         >
-          {`We are moving our middleware to new infrastructure. To avoid future issues with Data Explorer access, please
+          {`We have migrated our middleware to new infrastructure. To avoid issues with Data Explorer access, please
           re-enable "Allow access from Azure Portal" on the Networking blade for your account.`}
         </MessageBar>
       )}
@@ -133,6 +107,7 @@ export const Tabs = ({ explorer }: TabsProps): JSX.Element => {
         </ul>
       </div>
       <div className="tabPanesContainer">
+        {userContext.features.commandBarV2 && <CommandBarV2 explorer={explorer} />}
         {activeReactTab !== undefined && getReactTabContent(activeReactTab, explorer)}
         {openedTabs.map((tab) => (
           <TabPane key={tab.tabId} tab={tab} active={activeTab === tab} />
@@ -298,11 +273,15 @@ function TabPane({ tab, active }: { tab: Tab; active: boolean }) {
 
   if (tab) {
     if ("render" in tab) {
-      return <div {...attrs}>{tab.render()}</div>;
+      return (
+        <div data-test={`Tab:${tab.tabId}`} {...attrs}>
+          {tab.render()}
+        </div>
+      );
     }
   }
 
-  return <div {...attrs} ref={ref} data-bind="html:html" />;
+  return <div data-test={`Tab:${tab.tabId}`} {...attrs} ref={ref} data-bind="html:html" />;
 }
 
 const onKeyPressReactTab = (e: KeyboardEvent, tabKind: ReactTabKind): void => {
@@ -393,12 +372,6 @@ const showMongoAndCassandraProxiesNetworkSettingsWarning = (): boolean => {
         ipAddressesFromIPRules.includes(mongoProxyOutboundIP),
       );
 
-      if (ipRulesIncludeMongoProxy) {
-        updateConfigContext({
-          MONGO_PROXY_OUTBOUND_IPS_ALLOWLISTED: true,
-        });
-      }
-
       return !ipRulesIncludeMongoProxy;
     } else if (userContext.apiType === "Cassandra") {
       const isProdOrMpacCassandraProxyEndpoint: boolean = [
@@ -417,12 +390,6 @@ const showMongoAndCassandraProxiesNetworkSettingsWarning = (): boolean => {
         (cassandraProxyOutboundIP: string) => ipAddressesFromIPRules.includes(cassandraProxyOutboundIP),
       );
 
-      if (ipRulesIncludeCassandraProxy) {
-        updateConfigContext({
-          CASSANDRA_PROXY_OUTBOUND_IPS_ALLOWLISTED: true,
-        });
-      }
-
       return !ipRulesIncludeCassandraProxy;
     }
   }

src/Explorer/Tabs/TabsBase.ts

@@ -1,8 +1,8 @@
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import { KeyboardActionGroup, clearKeyboardActionGroup } from "KeyboardShortcuts";
 import * as ko from "knockout";
 import * as Constants from "../../Common/Constants";
 import * as ThemeUtility from "../../Common/ThemeUtility";
-import * as DataModels from "../../Contracts/DataModels";
 import * as ViewModels from "../../Contracts/ViewModels";
 import { Action, ActionModifiers } from "../../Shared/Telemetry/TelemetryConstants";
 import * as TelemetryProcessor from "../../Shared/Telemetry/TelemetryProcessor";
@@ -10,7 +10,6 @@ import { useNotificationConsole } from "../../hooks/useNotificationConsole";
 import { useTabs } from "../../hooks/useTabs";
 import { CommandButtonComponentProps } from "../Controls/CommandButton/CommandButtonComponent";
 import Explorer from "../Explorer";
-import { useCommandBar } from "../Menus/CommandBar/CommandBarComponentAdapter";
 import { WaitsForTemplateViewModel } from "../WaitsForTemplateViewModel";
 import { useSelectedNode } from "../useSelectedNode";
 // TODO: Use specific actions for logging telemetry data
@@ -28,7 +27,6 @@ export default class TabsBase extends WaitsForTemplateViewModel {
   public tabPath: ko.Observable<string>;
   public isExecutionError = ko.observable(false);
   public isExecuting = ko.observable(false);
-  public pendingNotification?: ko.Observable<DataModels.Notification>;
   protected _theme: string;
   public onLoadStartKey: number;
 
@@ -45,7 +43,6 @@ export default class TabsBase extends WaitsForTemplateViewModel {
     this.tabPath =
       this.collection &&
       ko.observable<string>(`${this.collection.databaseId}>${this.collection.id()}>${options.title}`);
-    this.pendingNotification = ko.observable<DataModels.Notification>(undefined);
     this.onLoadStartKey = options.onLoadStartKey;
     this.closeTabButton = {
       enabled: ko.computed<boolean>(() => {

src/Explorer/Tabs/TriggerTabContent.tsx

@@ -1,5 +1,6 @@
 import { TriggerDefinition } from "@azure/cosmos";
 import { Dropdown, IDropdownOption, Label, TextField } from "@fluentui/react";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import { KeyboardAction } from "KeyboardShortcuts";
 import React, { Component } from "react";
 import DiscardIcon from "../../../images/discard.svg";
@@ -14,7 +15,6 @@ import * as TelemetryProcessor from "../../Shared/Telemetry/TelemetryProcessor";
 import { SqlTriggerResource } from "../../Utils/arm/generatedClients/cosmos/types";
 import { CommandButtonComponentProps } from "../Controls/CommandButton/CommandButtonComponent";
 import { EditorReact } from "../Controls/Editor/EditorReact";
-import { useCommandBar } from "../Menus/CommandBar/CommandBarComponentAdapter";
 import TriggerTab from "./TriggerTab";
 
 const triggerTypeOptions: IDropdownOption[] = [

src/Explorer/Tabs/UserDefinedFunctionTabContent.tsx

@@ -1,5 +1,6 @@
 import { UserDefinedFunctionDefinition } from "@azure/cosmos";
 import { Label, TextField } from "@fluentui/react";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import { KeyboardAction } from "KeyboardShortcuts";
 import React, { Component } from "react";
 import DiscardIcon from "../../../images/discard.svg";
@@ -13,7 +14,6 @@ import { Action } from "../../Shared/Telemetry/TelemetryConstants";
 import * as TelemetryProcessor from "../../Shared/Telemetry/TelemetryProcessor";
 import { CommandButtonComponentProps } from "../Controls/CommandButton/CommandButtonComponent";
 import { EditorReact } from "../Controls/Editor/EditorReact";
-import { useCommandBar } from "../Menus/CommandBar/CommandBarComponentAdapter";
 import UserDefinedFunctionTab from "./UserDefinedFunctionTab";
 
 interface IUserDefinedFunctionTabContentState {

src/Explorer/Theme/ThemeUtil.tsx

@@ -1,6 +1,8 @@
 import {
   BrandVariants,
+  ComponentProps,
   FluentProvider,
+  FluentProviderSlots,
   Theme,
   createLightTheme,
   makeStyles,
@@ -10,16 +12,19 @@ import {
   webLightTheme,
 } from "@fluentui/react-components";
 import { Platform, configContext } from "ConfigContext";
-import React, { PropsWithChildren } from "react";
+import React from "react";
 import { appThemeFabricTealBrandRamp } from "../../Platform/Fabric/FabricTheme";
 
 export const LayoutConstants = {
-  rowHeight: 36,
+  rowHeight: 32,
 };
 
-export type CosmosFluentProviderProps = PropsWithChildren<{
-  className?: string;
-}>;
+// Our CosmosFluentProvider has the same props as a FluentProvider.
+export type CosmosFluentProviderProps = Omit<ComponentProps<FluentProviderSlots, "root">, "dir">;
+
+// PropsWithChildren<{
+//   className?: string;
+// }>;
 
 const useDefaultRootStyles = makeStyles({
   fluentProvider: {
@@ -32,15 +37,37 @@ const useDefaultRootStyles = makeStyles({
   },
 });
 
-export const CosmosFluentProvider: React.FC<CosmosFluentProviderProps> = ({ children, className }) => {
+const FluentProviderContext = React.createContext({
+  isInFluentProvider: false,
+});
+
+export const CosmosFluentProvider: React.FC<CosmosFluentProviderProps> = ({ children, className, ...props }) => {
+  // We use a React context to ensure that nested CosmosFluentProviders don't create nested FluentProviders.
+  // This helps during the transition from Fluent UI 8 to Fluent UI 9.
+  // As we convert components to Fluent UI 9, if we end up with nested FluentProviders, the inner FluentProvider will be a no-op.
+  const { isInFluentProvider } = React.useContext(FluentProviderContext);
   const styles = useDefaultRootStyles();
+
+  if (isInFluentProvider) {
+    // We're already in a fluent context, don't create another.
+    console.warn("Nested CosmosFluentProvider detected. This is likely a bug.");
     return (
+      <div className={className} {...props}>
+        {children}
+      </div>
+    );
+  }
+
+  return (
+    <FluentProviderContext.Provider value={{ isInFluentProvider: true }}>
       <FluentProvider
         theme={getPlatformTheme(configContext.platform)}
         className={mergeClasses(styles.fluentProvider, className)}
+        {...props}
       >
         {children}
       </FluentProvider>
+    </FluentProviderContext.Provider>
   );
 };
 
@@ -64,15 +91,30 @@ const appThemePortalBrandRamp: BrandVariants = {
   160: "#CDD8EF",
 };
 
-const cosmosThemeElements = {
-  layoutRowHeight: `${LayoutConstants.rowHeight}px`,
+export enum LayoutSize {
+  Compact,
+  // TODO: Cozy and Roomy layouts.
+}
+
+interface CosmosThemeElements {
+  layoutRowHeight: string;
+}
+
+export type CosmosTheme = Theme & CosmosThemeElements;
+
+const sizeMappings: Record<LayoutSize, Partial<Theme> & CosmosThemeElements> = {
+  [LayoutSize.Compact]: {
+    layoutRowHeight: "32px",
+    fontSizeBase300: "13px",
+  },
+};
+
+const cosmosTheme = {
   sidebarMinimumWidth: "200px",
   sidebarInitialWidth: "300px",
 };
 
-export type CosmosTheme = Theme & typeof cosmosThemeElements;
-
-export const tokens = themeToTokensObject({ ...webLightTheme, ...cosmosThemeElements });
+export const tokens = themeToTokensObject({ ...webLightTheme, ...cosmosTheme, ...sizeMappings[LayoutSize.Compact] });
 
 export const cosmosShorthands = {
   border: () => shorthands.border("1px", "solid", tokens.colorNeutralStroke2),
@@ -90,6 +132,7 @@ export function getPlatformTheme(platform: Platform): CosmosTheme {
 
   return {
     ...baseTheme,
-    ...cosmosThemeElements,
+    ...cosmosTheme,
+    ...sizeMappings[LayoutSize.Compact], // TODO: Allow for different layout sizes.
   };
 }

src/Explorer/Tree/Collection.ts

@@ -1,12 +1,11 @@
 import { Resource, StoredProcedureDefinition, TriggerDefinition, UserDefinedFunctionDefinition } from "@azure/cosmos";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import { useNotebook } from "Explorer/Notebook/useNotebook";
 import { DocumentsTabV2 } from "Explorer/Tabs/DocumentsTabV2/DocumentsTabV2";
 import * as ko from "knockout";
 import * as _ from "underscore";
 import * as Constants from "../../Common/Constants";
 import { getErrorMessage, getErrorStack } from "../../Common/ErrorHandlingUtils";
-import * as Logger from "../../Common/Logger";
-import { fetchPortalNotifications } from "../../Common/PortalNotifications";
 import { bulkCreateDocument } from "../../Common/dataAccess/bulkCreateDocument";
 import { createDocument } from "../../Common/dataAccess/createDocument";
 import { getCollectionUsageSizeInKB } from "../../Common/dataAccess/getCollectionDataUsageSize";
@@ -25,7 +24,6 @@ import { logConsoleInfo } from "../../Utils/NotificationConsoleUtils";
 import { SqlTriggerResource } from "../../Utils/arm/generatedClients/cosmos/types";
 import { useTabs } from "../../hooks/useTabs";
 import Explorer from "../Explorer";
-import { useCommandBar } from "../Menus/CommandBar/CommandBarComponentAdapter";
 import { CassandraAPIDataClient, CassandraTableKey, CassandraTableKeys } from "../Tables/TableDataClient";
 import ConflictsTab from "../Tabs/ConflictsTab";
 import GraphTab from "../Tabs/GraphTab";
@@ -1020,41 +1018,6 @@ export default class Collection implements ViewModels.Collection {
     this.uploadFiles(event.originalEvent.dataTransfer.files);
   }
 
-  public async getPendingThroughputSplitNotification(): Promise<DataModels.Notification> {
-    if (!this.container) {
-      return undefined;
-    }
-
-    try {
-      const notifications: DataModels.Notification[] = await fetchPortalNotifications();
-      if (!notifications || notifications.length === 0) {
-        return undefined;
-      }
-
-      return _.find(notifications, (notification: DataModels.Notification) => {
-        const throughputUpdateRegExp: RegExp = new RegExp("Throughput update (.*) in progress");
-        return (
-          notification.kind === "message" &&
-          notification.collectionName === this.id() &&
-          notification.description &&
-          throughputUpdateRegExp.test(notification.description)
-        );
-      });
-    } catch (error) {
-      Logger.logError(
-        JSON.stringify({
-          error: getErrorMessage(error),
-          accountName: userContext?.databaseAccount,
-          databaseName: this.databaseId,
-          collectionName: this.id(),
-        }),
-        "Settings tree node",
-      );
-
-      return undefined;
-    }
-  }
-
   public async uploadFiles(files: FileList): Promise<{ data: UploadDetailsRecord[] }> {
     const data = await Promise.all(Array.from(files).map((file) => this.uploadFile(file)));
 

src/Explorer/Tree/Database.tsx

@@ -4,8 +4,6 @@ import * as _ from "underscore";
 import { AuthType } from "../../AuthType";
 import * as Constants from "../../Common/Constants";
 import { getErrorMessage, getErrorStack } from "../../Common/ErrorHandlingUtils";
-import * as Logger from "../../Common/Logger";
-import { fetchPortalNotifications } from "../../Common/PortalNotifications";
 import { readCollections, readCollectionsWithPagination } from "../../Common/dataAccess/readCollections";
 import { readDatabaseOffer } from "../../Common/dataAccess/readDatabaseOffer";
 import * as DataModels from "../../Contracts/DataModels";
@@ -76,7 +74,6 @@ export default class Database implements ViewModels.Database {
       await useDatabases.getState().loadAllOffers();
     }
 
-    const pendingNotificationsPromise: Promise<DataModels.Notification> = this.getPendingThroughputSplitNotification();
     const tabKind = ViewModels.CollectionTabKind.DatabaseSettingsV2;
     const matchingTabs = useTabs.getState().getTabs(tabKind, (tab) => tab.node?.id() === this.id());
     let settingsTab = matchingTabs?.[0] as DatabaseSettingsTabV2;
@@ -87,10 +84,8 @@ export default class Database implements ViewModels.Database {
         dataExplorerArea: Constants.Areas.Tab,
         tabTitle: "Scale",
       });
-      pendingNotificationsPromise.then(
-        // eslint-disable-next-line @typescript-eslint/no-explicit-any
-        (data: any) => {
-          const pendingNotification: DataModels.Notification = data?.[0];
+
+      try {
         const tabOptions: ViewModels.TabOptions = {
           tabKind,
           title: "Scale",
@@ -101,10 +96,8 @@ export default class Database implements ViewModels.Database {
           onLoadStartKey: startKey,
         };
         settingsTab = new DatabaseSettingsTabV2(tabOptions);
-          settingsTab.pendingNotification(pendingNotification);
         useTabs.getState().activateNewTab(settingsTab);
-        },
-        (error) => {
+      } catch (error) {
         const errorMessage = getErrorMessage(error);
         TelemetryProcessor.traceFailure(
           Action.Tab,
@@ -121,19 +114,9 @@ export default class Database implements ViewModels.Database {
         );
         logConsoleError(`Error while fetching database settings for database ${this.id()}: ${errorMessage}`);
         throw error;
-        },
-      );
+      }
     } else {
-      pendingNotificationsPromise.then(
-        (pendingNotification: DataModels.Notification) => {
-          settingsTab.pendingNotification(pendingNotification);
       useTabs.getState().activateTab(settingsTab);
-        },
-        () => {
-          settingsTab.pendingNotification(undefined);
-          useTabs.getState().activateTab(settingsTab);
-        },
-      );
     }
   };
 
@@ -260,42 +243,6 @@ export default class Database implements ViewModels.Database {
     }
   }
 
-  public async getPendingThroughputSplitNotification(): Promise<DataModels.Notification> {
-    if (!this.container) {
-      return undefined;
-    }
-
-    try {
-      const notifications: DataModels.Notification[] = await fetchPortalNotifications();
-      if (!notifications || notifications.length === 0) {
-        return undefined;
-      }
-
-      return _.find(notifications, (notification: DataModels.Notification) => {
-        const throughputUpdateRegExp = new RegExp("Throughput update (.*) in progress");
-        return (
-          notification.kind === "message" &&
-          !notification.collectionName &&
-          notification.databaseName === this.id() &&
-          notification.description &&
-          throughputUpdateRegExp.test(notification.description)
-        );
-      });
-    } catch (error) {
-      Logger.logError(
-        JSON.stringify({
-          error: getErrorMessage(error),
-          accountName: userContext?.databaseAccount,
-          databaseName: this.id(),
-          collectionName: this.id(),
-        }),
-        "Settings tree node",
-      );
-
-      return undefined;
-    }
-  }
-
   private getDeltaCollections(updatedCollectionsList: DataModels.Collection[]): {
     toAdd: DataModels.Collection[];
     toDelete: Collection[];

src/Explorer/Tree/ResourceTreeAdapter.tsx

@@ -1,4 +1,6 @@
 import { TreeNodeMenuItem } from "Explorer/Controls/TreeComponent/TreeNodeComponent";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
+import { collectionWasOpened } from "Explorer/MostRecentActivity/MostRecentActivity";
 import { shouldShowScriptNodes } from "Explorer/Tree/treeNodeUtil";
 import { getItemName } from "Utils/APITypeUtils";
 import * as ko from "knockout";
@@ -27,8 +29,6 @@ import * as ResourceTreeContextMenuButtonFactory from "../ContextMenuButtonFacto
 import { useDialog } from "../Controls/Dialog";
 import { LegacyTreeComponent, LegacyTreeNode } from "../Controls/TreeComponent/LegacyTreeComponent";
 import Explorer from "../Explorer";
-import { useCommandBar } from "../Menus/CommandBar/CommandBarComponentAdapter";
-import { mostRecentActivity } from "../MostRecentActivity/MostRecentActivity";
 import { NotebookContentItem, NotebookContentItemType } from "../Notebook/NotebookContentItem";
 import { NotebookUtil } from "../Notebook/NotebookUtil";
 import { useNotebook } from "../Notebook/useNotebook";
@@ -229,7 +229,7 @@ export class ResourceTreeAdapter implements ReactAdapter {
       onClick: () => {
         collection.openTab();
         // push to most recent
-        mostRecentActivity.collectionWasOpened(userContext.databaseAccount?.id, collection);
+        collectionWasOpened(userContext.databaseAccount?.name, collection);
       },
       isSelected: () =>
         useSelectedNode

src/Explorer/Tree/SampleDataTree.tsx

@@ -1,4 +1,4 @@
-import { useCommandBar } from "Explorer/Menus/CommandBar/CommandBarComponentAdapter";
+import { useCommandBar } from "Explorer/Menus/CommandBar/useCommandBar";
 import TabsBase from "Explorer/Tabs/TabsBase";
 import { useSelectedNode } from "Explorer/useSelectedNode";
 import { useTabs } from "hooks/useTabs";

src/Explorer/Tree/__snapshots__/treeNodeUtil.test.ts.snap

@@ -30,6 +30,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Ca
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "standardCollection",
@@ -69,6 +72,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Ca
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "conflictsCollection",
@@ -92,6 +98,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Ca
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "standardDb",
@@ -102,6 +111,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Ca
   {
     "children": [
       {
+        "iconSrc": <SettingsRegular
+          fontSize={16}
+        />,
         "id": "",
         "isSelected": [Function],
         "label": "Scale",
@@ -133,6 +145,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Ca
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "sampleItemsCollection",
@@ -156,6 +171,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Ca
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "sharedDatabase",
@@ -246,6 +264,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Ca
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "schemaCollection",
@@ -274,6 +295,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Ca
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "giganticDatabase",
@@ -345,6 +369,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Mo
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "standardCollection",
@@ -415,6 +442,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Mo
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "conflictsCollection",
@@ -438,6 +468,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Mo
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "standardDb",
@@ -448,6 +481,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Mo
   {
     "children": [
       {
+        "iconSrc": <SettingsRegular
+          fontSize={16}
+        />,
         "id": "",
         "isSelected": [Function],
         "label": "Scale",
@@ -510,6 +546,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Mo
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "sampleItemsCollection",
@@ -533,6 +572,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Mo
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "sharedDatabase",
@@ -654,6 +696,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Mo
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "schemaCollection",
@@ -682,6 +727,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Mo
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "giganticDatabase",
@@ -706,6 +754,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
             "onClick": [Function],
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "standardCollection",
@@ -724,6 +775,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
             "onClick": [Function],
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "conflictsCollection",
@@ -747,6 +801,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "standardDb",
@@ -766,6 +823,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
             "onClick": [Function],
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "sampleItemsCollection",
@@ -789,6 +849,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "sharedDatabase",
@@ -808,6 +871,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
             "onClick": [Function],
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "schemaCollection",
@@ -836,6 +902,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "giganticDatabase",
@@ -976,6 +1045,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "standardCollection",
@@ -1076,6 +1148,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "conflictsCollection",
@@ -1099,6 +1174,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "standardDb",
@@ -1109,6 +1187,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
   {
     "children": [
       {
+        "iconSrc": <SettingsRegular
+          fontSize={16}
+        />,
         "id": "",
         "isSelected": [Function],
         "label": "Scale",
@@ -1201,6 +1282,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "sampleItemsCollection",
@@ -1224,6 +1308,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "sharedDatabase",
@@ -1375,6 +1462,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "schemaCollection",
@@ -1403,6 +1493,9 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the SQ
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "giganticDatabase",
@@ -1543,6 +1636,9 @@ exports[`createDatabaseTreeNodes using NoSQL API on Hosted Platform creates expe
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "standardCollection",
@@ -1638,6 +1734,9 @@ exports[`createDatabaseTreeNodes using NoSQL API on Hosted Platform creates expe
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "conflictsCollection",
@@ -1661,6 +1760,9 @@ exports[`createDatabaseTreeNodes using NoSQL API on Hosted Platform creates expe
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "standardDb",
@@ -1671,6 +1773,9 @@ exports[`createDatabaseTreeNodes using NoSQL API on Hosted Platform creates expe
   {
     "children": [
       {
+        "iconSrc": <SettingsRegular
+          fontSize={16}
+        />,
         "id": "",
         "isSelected": [Function],
         "label": "Scale",
@@ -1763,6 +1868,9 @@ exports[`createDatabaseTreeNodes using NoSQL API on Hosted Platform creates expe
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "sampleItemsCollection",
@@ -1786,6 +1894,9 @@ exports[`createDatabaseTreeNodes using NoSQL API on Hosted Platform creates expe
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "sharedDatabase",
@@ -1937,6 +2048,9 @@ exports[`createDatabaseTreeNodes using NoSQL API on Hosted Platform creates expe
             "styleClass": "deleteCollectionMenuItem",
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": true,
         "isSelected": [Function],
         "label": "schemaCollection",
@@ -1965,6 +2079,9 @@ exports[`createDatabaseTreeNodes using NoSQL API on Hosted Platform creates expe
         "styleClass": "deleteDatabaseMenuItem",
       },
     ],
+    "iconSrc": <DatabaseRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "giganticDatabase",
@@ -1986,6 +2103,9 @@ exports[`createResourceTokenTreeNodes creates the expected tree nodes 1`] = `
       },
     ],
     "className": "collectionNode",
+    "iconSrc": <DocumentMultipleRegular
+      fontSize={16}
+    />,
     "isExpanded": true,
     "isSelected": [Function],
     "label": "testCollection",
@@ -2021,6 +2141,9 @@ exports[`createSampleDataTreeNodes creates the expected tree nodes 1`] = `
             "onClick": [Function],
           },
         ],
+        "iconSrc": <DocumentMultipleRegular
+          fontSize={16}
+        />,
         "isExpanded": false,
         "isSelected": [Function],
         "label": "testCollection",