Merge branch '26_1' into 26_1_global_format

Author: GoodDayForSurf

apps/demos/Demos/Chat/MessageStreaming/description.md

@@ -0,0 +1,19 @@
+This demo implements the DevExtreme Chat component with [Azure OpenAI](https://azure.microsoft.com/en-us/products/ai-services/openai-service) to stream AI-generated responses in real time. As the AI model produces output token by token, the Chat component renders the response incrementally inside a message bubble. A typing indicator appears while the response is being streamed, and the send button transforms into a stop button so that users can cancel an in-progress stream at any time.
+
+The empty Chat displays custom suggestion cards. Clicking a card sends the corresponding prompt directly to the AI without extra user input.
+
+<!--split-->
+
+## Streaming AI Responses
+
+The demo calls the Azure OpenAI Chat Completions API with `stream: true`. Incoming delta chunks are passed through a `createDelayedRenderer` queue that introduces a short display delay between chunks to produce a smooth typing effect. The demo appends each chunk to a growing buffer and updates the assistant message in the data store with every render cycle via a `dataSource.store().push(...)` call.
+
+## Stopping a Stream
+
+The demo creates an `AbortController` before each request and passes its `signal` (`AbortSignal`) to the Azure OpenAI SDK in the request options. When the user clicks the stop button, the demo calls `abortController.abort()` to cancel the in-progress HTTP request.
+
+The [sendButtonOptions](/Documentation/ApiReference/UI_Components/dxChat/Configuration/#sendButtonOptions) property switches the button's `action` property to `'custom'` and the icon to `'stopfilled'` while streaming is active, then reverts to the default (send) configuration once streaming ends.
+
+## Custom Empty View
+
+The Chat component specifies an [emptyViewTemplate](/Documentation/ApiReference/UI_Components/dxChat/Configuration/#emptyViewTemplate) that replaces the default empty state with custom suggestion cards. Clicking a card creates a message and triggers the demo message sending flow directly, bypassing the text input.

apps/demos/Demos/DataGrid/AutoPopulatedColumns/Angular/app/app.service.ts

@@ -20,276 +20,276 @@ const orders: Order[] = [{
   StoreCity: 'Los Angeles',
   StoreState: 'California',
   Employee: 'Harv Mudd',
-  OrderDate: '2014/04/10',
+  OrderDate: '2024/04/10',
 }, {
   OrderNumber: 35711,
-  OrderDate: '2014/01/12',
+  OrderDate: '2024/01/12',
   SaleAmount: 16050,
   StoreState: 'California',
   StoreCity: 'San Jose',
   Employee: 'Jim Packard',
 }, {
   OrderNumber: 35714,
-  OrderDate: '2014/01/22',
+  OrderDate: '2024/01/22',
   SaleAmount: 14750,
   StoreState: 'Nevada',
   StoreCity: 'Las Vegas',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 35983,
-  OrderDate: '2014/02/07',
+  OrderDate: '2024/02/07',
   SaleAmount: 3725,
   StoreState: 'Colorado',
   StoreCity: 'Denver',
   Employee: 'Todd Hoffman',
 }, {
   OrderNumber: 36987,
-  OrderDate: '2014/03/11',
+  OrderDate: '2024/03/11',
   SaleAmount: 14200,
   StoreState: 'Utah',
   StoreCity: 'Salt Lake City',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 38466,
-  OrderDate: '2014/03/01',
+  OrderDate: '2024/03/01',
   SaleAmount: 7800,
   StoreState: 'California',
   StoreCity: 'Los Angeles',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 39420,
-  OrderDate: '2014/02/15',
+  OrderDate: '2024/02/15',
   SaleAmount: 20500,
   StoreState: 'California',
   StoreCity: 'San Jose',
   Employee: 'Jim Packard',
 }, {
   OrderNumber: 39874,
-  OrderDate: '2014/02/04',
+  OrderDate: '2024/02/04',
   SaleAmount: 9050,
   StoreState: 'Nevada',
   StoreCity: 'Las Vegas',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 42847,
-  OrderDate: '2014/02/15',
+  OrderDate: '2024/02/15',
   SaleAmount: 20400,
   StoreState: 'Wyoming',
   StoreCity: 'Casper',
   Employee: 'Todd Hoffman',
 }, {
   OrderNumber: 43982,
-  OrderDate: '2014/05/29',
+  OrderDate: '2024/05/29',
   SaleAmount: 6050,
   StoreState: 'Utah',
   StoreCity: 'Salt Lake City',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 56272,
-  OrderDate: '2014/05/16',
+  OrderDate: '2024/05/16',
   SaleAmount: 15850,
   StoreState: 'Utah',
   StoreCity: 'Salt Lake City',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 57429,
-  OrderDate: '2014/04/11',
+  OrderDate: '2023/12/31',
   SaleAmount: 11050,
   StoreState: 'Arizona',
   StoreCity: 'Phoenix',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 58292,
-  OrderDate: '2014/04/05',
+  OrderDate: '2024/04/05',
   SaleAmount: 13500,
   StoreState: 'California',
   StoreCity: 'Los Angeles',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 62427,
-  OrderDate: '2014/05/17',
+  OrderDate: '2024/05/17',
   SaleAmount: 23500,
   StoreState: 'Nevada',
   StoreCity: 'Las Vegas',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 65977,
-  OrderDate: '2014/02/13',
+  OrderDate: '2024/02/13',
   SaleAmount: 2550,
   StoreState: 'Wyoming',
   StoreCity: 'Casper',
   Employee: 'Todd Hoffman',
 }, {
   OrderNumber: 66947,
-  OrderDate: '2014/01/06',
+  OrderDate: '2024/01/06',
   SaleAmount: 3500,
   StoreState: 'Utah',
   StoreCity: 'Salt Lake City',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 68428,
-  OrderDate: '2014/03/13',
+  OrderDate: '2024/03/13',
   SaleAmount: 10500,
   StoreState: 'California',
   StoreCity: 'Los Angeles',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 69477,
-  OrderDate: '2014/01/22',
+  OrderDate: '2024/01/22',
   SaleAmount: 14200,
   StoreState: 'California',
   StoreCity: 'Anaheim',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 72947,
-  OrderDate: '2014/03/05',
+  OrderDate: '2024/03/05',
   SaleAmount: 13350,
   StoreState: 'Nevada',
   StoreCity: 'Las Vegas',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 73088,
-  OrderDate: '2014/01/21',
+  OrderDate: '2024/01/21',
   SaleAmount: 8600,
   StoreState: 'Nevada',
   StoreCity: 'Reno',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 76927,
-  OrderDate: '2014/04/04',
+  OrderDate: '2024/04/04',
   SaleAmount: 9800,
   StoreState: 'Utah',
   StoreCity: 'Salt Lake City',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 77297,
-  OrderDate: '2014/01/07',
+  OrderDate: '2024/01/07',
   SaleAmount: 10850,
   StoreState: 'Arizona',
   StoreCity: 'Phoenix',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 84744,
-  OrderDate: '2014/05/20',
+  OrderDate: '2024/05/20',
   SaleAmount: 4650,
   StoreState: 'Nevada',
   StoreCity: 'Las Vegas',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 85028,
-  OrderDate: '2014/02/08',
+  OrderDate: '2024/02/08',
   SaleAmount: 2575,
   StoreState: 'Nevada',
   StoreCity: 'Reno',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 87297,
-  OrderDate: '2014/04/08',
+  OrderDate: '2024/04/08',
   SaleAmount: 14200,
   StoreState: 'Wyoming',
   StoreCity: 'Casper',
   Employee: 'Todd Hoffman',
 }, {
   OrderNumber: 88027,
-  OrderDate: '2014/05/18',
+  OrderDate: '2024/05/18',
   SaleAmount: 13650,
   StoreState: 'Utah',
   StoreCity: 'Salt Lake City',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 94726,
-  OrderDate: '2014/02/23',
+  OrderDate: '2024/02/23',
   SaleAmount: 20500,
   StoreState: 'California',
   StoreCity: 'San Jose',
   Employee: 'Jim Packard',
 }, {
   OrderNumber: 95266,
-  OrderDate: '2014/03/18',
+  OrderDate: '2024/03/18',
   SaleAmount: 9050,
   StoreState: 'Nevada',
   StoreCity: 'Las Vegas',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 98477,
-  OrderDate: '2014/05/08',
+  OrderDate: '2024/05/08',
   SaleAmount: 23500,
   StoreState: 'Wyoming',
   StoreCity: 'Casper',
   Employee: 'Todd Hoffman',
 }, {
   OrderNumber: 99247,
-  OrderDate: '2014/02/27',
+  OrderDate: '2024/02/27',
   SaleAmount: 2100,
   StoreState: 'Utah',
   StoreCity: 'Salt Lake City',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 174884,
-  OrderDate: '2014/03/03',
+  OrderDate: '2024/03/03',
   SaleAmount: 7200,
   StoreState: 'Colorado',
   StoreCity: 'Denver',
   Employee: 'Todd Hoffman',
 }, {
   OrderNumber: 188877,
-  OrderDate: '2014/02/14',
+  OrderDate: '2024/02/14',
   SaleAmount: 8750,
   StoreState: 'Arizona',
   StoreCity: 'Phoenix',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 191883,
-  OrderDate: '2014/02/28',
+  OrderDate: '2024/02/28',
   SaleAmount: 9900,
   StoreState: 'California',
   StoreCity: 'Los Angeles',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 192474,
-  OrderDate: '2014/02/18',
+  OrderDate: '2024/02/18',
   SaleAmount: 12800,
   StoreState: 'California',
   StoreCity: 'Anaheim',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 193847,
-  OrderDate: '2014/05/06',
+  OrderDate: '2024/05/06',
   SaleAmount: 14100,
   StoreState: 'California',
   StoreCity: 'San Diego',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 194877,
-  OrderDate: '2014/03/17',
+  OrderDate: '2024/03/17',
   SaleAmount: 4750,
   StoreState: 'California',
   StoreCity: 'San Jose',
   Employee: 'Jim Packard',
 }, {
   OrderNumber: 195746,
-  OrderDate: '2014/02/04',
+  OrderDate: '2024/02/04',
   SaleAmount: 9050,
   StoreState: 'Nevada',
   StoreCity: 'Las Vegas',
   Employee: 'Harv Mudd',
 }, {
   OrderNumber: 197474,
-  OrderDate: '2014/01/17',
+  OrderDate: '2024/01/17',
   SaleAmount: 6400,
   StoreState: 'Nevada',
   StoreCity: 'Reno',
   Employee: 'Clark Morgan',
 }, {
   OrderNumber: 198746,
-  OrderDate: '2014/02/04',
+  OrderDate: '2024/02/04',
   SaleAmount: 15700,
   StoreState: 'Colorado',
   StoreCity: 'Denver',
   Employee: 'Todd Hoffman',
 }, {
   OrderNumber: 214222,
-  OrderDate: '2014/02/03',
+  OrderDate: '2024/02/03',
   SaleAmount: 11050,
   StoreState: 'Arizona',
   StoreCity: 'Phoenix',