Grids AI Assistant: Add Final Updates (#8835)

Author: arman-boyakhchyan

api-reference/10 UI Components/dxDataGrid/1 Configuration/aiAssistant/aiAssistant.md

@@ -8,4 +8,9 @@ inheritsType: AIAssistant
 Configures the {WidgetName} AI Assistant.
 
 ---
-<!-- Description goes here -->
+<!-- Description goes here -->
+
+#include common-demobutton-named with {
+    url: "https://js.devexpress.com/Demos/WidgetsGallery/Demo/DataGrid/AIAssistant/",
+    name: "DataGrid - AI Assistant"
+}

api-reference/10 UI Components/dxDataGrid/9 Types/DataGridPredefinedCommands/DataGridPredefinedCommands.md

@@ -58,6 +58,7 @@ The following code snippet lists available commands with their arguments:
     };
     selectByIndexes: {
         indexes: number[];
+        mode: 'select' | 'deselect';
     };
     selectAll: {};
     deselectAll: {};

api-reference/40 Common Types/15 grids/AIAssistant/AIAssistant.md

@@ -10,4 +10,9 @@ generateTypeLink:
 Configures the {WidgetName} AI Assistant.
 
 ---
-<!-- Description goes here -->
+<!-- Description goes here -->
+
+#include common-demobutton-named with {
+    url: "https://js.devexpress.com/Demos/WidgetsGallery/Demo/DataGrid/AIAssistant/",
+    name: "DataGrid - AI Assistant"
+}

api-reference/40 Common Types/15 grids/PredefinedCommands/PredefinedCommands.md

@@ -57,6 +57,7 @@ The following code snippet lists available commands with their arguments:
     };
     selectByIndexes: {
         indexes: number[];
+        mode: 'select' | 'deselect';
     };
     selectAll: {};
     deselectAll: {};

concepts/Common/Whats New/00 v26.1 Release Notes.md

@@ -13,7 +13,7 @@ Once you've reviewed the features/capabilities introduced in our v26.1 release c
 ##### jQuery
 
 - [Migration to a Single License Key for All DevExpress Products](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-migration-to-a-single-license-key-for-all-devexpress-products)
-- [DataGrid and TreeList — AI Assistant (CTP)](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-datagrid-and-treelist-ai-assistant)
+- [DataGrid and TreeList — AI Assistant](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-datagrid-and-treelist-ai-assistant)
 - [DevExtreme AI Agent Skills](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-ai-agent-skills)
 - [Chat Enhancements](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-chat-enhancements)
     - [Speech to Text](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-chat-enhancements-speech-to-text)
@@ -46,7 +46,7 @@ Once you've reviewed the features/capabilities introduced in our v26.1 release c
 ##### Angular
 
 - [Migration to a Single License Key for All DevExpress Products](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-migration-to-a-single-license-key-for-all-devexpress-products)
-- [DataGrid and TreeList — AI Assistant (CTP)](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-datagrid-and-treelist-ai-assistant)
+- [DataGrid and TreeList — AI Assistant](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-datagrid-and-treelist-ai-assistant)
 - [DevExtreme AI Agent Skills](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-ai-agent-skills)
 - [Chat Enhancements](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-chat-enhancements)
     - [Speech to Text](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-chat-enhancements-speech-to-text)
@@ -77,7 +77,7 @@ Once you've reviewed the features/capabilities introduced in our v26.1 release c
 ##### Vue
 
 - [Migration to a Single License Key for All DevExpress Products](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-migration-to-a-single-license-key-for-all-devexpress-products)
-- [DataGrid and TreeList — AI Assistant (CTP)](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-datagrid-and-treelist-ai-assistant)
+- [DataGrid and TreeList — AI Assistant](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-datagrid-and-treelist-ai-assistant)
 - [DevExtreme AI Agent Skills](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-ai-agent-skills)
 - [Chat Enhancements](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-chat-enhancements)
     - [Speech to Text](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-chat-enhancements-speech-to-text)
@@ -105,7 +105,7 @@ Once you've reviewed the features/capabilities introduced in our v26.1 release c
 ##### React
 
 - [Migration to a Single License Key for All DevExpress Products](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-migration-to-a-single-license-key-for-all-devexpress-products)
-- [DataGrid and TreeList — AI Assistant (CTP)](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-datagrid-and-treelist-ai-assistant)
+- [DataGrid and TreeList — AI Assistant](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-datagrid-and-treelist-ai-assistant)
 - [DevExtreme AI Agent Skills](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-ai-agent-skills)
 - [Chat Enhancements](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-chat-enhancements)
     - [Speech to Text](https://www.devexpress.com/subscriptions/new-2026-1.xml#js-chat-enhancements-speech-to-text)