CardView: Fix cards not updating on column visibility/order changes (T1324855)

e2e/testcafe-devextreme/tests/cardView/columnChooser/functional.ts

@@ -1,6 +1,7 @@
 import CardView from 'devextreme-testcafe-models/cardView';
 import url from '../../../helpers/getPageUrl';
 import { createWidget } from '../../../helpers/createWidget';
+import { getCardFieldCaptions } from '../helpers/cardUtils';
 
 fixture`CardView - ColumnChooser.Functional`
   .page(url(__dirname, '../../container.html'));
@@ -184,3 +185,65 @@ test('ColumnChooser should receive and render custom texts', async (t) => {
 }).after(async (t) => {
   await t.eval(() => location.reload());
 });
+
+test('cards should update when column is hidden via column chooser (select mode) (T1324855)', async (t) => {
+  const cardView = new CardView('#container');
+
+  const initialCaptions = await getCardFieldCaptions(t, cardView, 3);
+  await t.expect(initialCaptions).eql(['A', 'B', 'C']);
+
+  await cardView.apiShowColumnChooser();
+
+  await t.click(cardView.getColumnChooser().getCheckbox(0));
+
+  const captionsAfterHide = await getCardFieldCaptions(t, cardView, 2);
+  await t.expect(captionsAfterHide).eql(['B', 'C']);
+
+  await t.click(cardView.getColumnChooser().getCheckbox(0));
+
+  const captionsAfterShow = await getCardFieldCaptions(t, cardView, 3);
+  await t.expect(captionsAfterShow).eql(['A', 'B', 'C']);
+}).before(async () => createWidget('dxCardView', {
+  dataSource: [
+    { a: 1, b: 2, c: 3 },
+  ],
+  columns: ['a', 'b', 'c'],
+  columnChooser: {
+    enabled: true,
+    mode: 'select',
+  },
+}));
+
+test('cards should update when column is hidden via column chooser (dragAndDrop mode) (T1324855)', async (t) => {
+  const cardView = new CardView('#container');
+
+  const initialCaptions = await getCardFieldCaptions(t, cardView, 3);
+  await t.expect(initialCaptions).eql(['A', 'B', 'C']);
+
+  await cardView.apiShowColumnChooser();
+
+  await t.dragToElement(
+    cardView.getHeaderPanel().getHeaderItem(0).element,
+    cardView.getColumnChooser().content,
+  );
+
+  const captionsAfterHide = await getCardFieldCaptions(t, cardView, 2);
+  await t.expect(captionsAfterHide).eql(['B', 'C']);
+
+  await t.dragToElement(
+    cardView.getColumnChooser().getColumn(0),
+    cardView.getHeaderPanel().element,
+  );
+
+  const captionsAfterShow = await getCardFieldCaptions(t, cardView, 3);
+  await t.expect(captionsAfterShow).eql(['A', 'B', 'C']);
+}).before(async () => createWidget('dxCardView', {
+  dataSource: [
+    { a: 1, b: 2, c: 3 },
+  ],
+  columns: ['a', 'b', 'c'],
+  columnChooser: {
+    enabled: true,
+    mode: 'dragAndDrop',
+  },
+}));

e2e/testcafe-devextreme/tests/cardView/columnSortable/functional.ts

@@ -3,6 +3,7 @@ import TreeView from 'devextreme-testcafe-models/treeView';
 import { Selector } from 'testcafe';
 import url from '../../../helpers/getPageUrl';
 import { createWidget } from '../../../helpers/createWidget';
+import { getCardFieldCaptions } from '../helpers/cardUtils';
 import {
   arrayMoveToGap,
   dragToColumnChooser,
@@ -305,3 +306,38 @@ test('drag from columnChooser to headerPanel: when allowReordering: false', asyn
     mode: 'dragAndDrop',
   },
 }));
+
+test('cards should update when columns are reordered (T1324855)', async (t) => {
+  const cardView = new CardView('#container');
+
+  const initialCaptions = await getCardFieldCaptions(t, cardView, 3);
+  await t.expect(initialCaptions).eql(['A', 'B', 'C']);
+
+  const headerPanel = cardView.getHeaderPanel();
+  const firstHeader = headerPanel.getHeaderItem(0).element;
+  const secondHeader = headerPanel.getHeaderItem(1).element;
+
+  await t.dragToElement(firstHeader, secondHeader, {
+    destinationOffsetX: -5,
+    destinationOffsetY: -20,
+    speed: 0.5,
+  });
+
+  // Wait for headers to update after drag
+  await t.expect(cardView.getHeaders().getHeaderItemNth(0).element.innerText).notEql('A');
+
+  const headerCaptions: string[] = [];
+  const headersCount = await cardView.getHeaders().getHeaderItemsElements().count;
+  for (let i = 0; i < headersCount; i += 1) {
+    headerCaptions.push(await cardView.getHeaders().getHeaderItemNth(i).element.innerText);
+  }
+
+  const cardCaptions = await getCardFieldCaptions(t, cardView, headersCount);
+  await t.expect(cardCaptions).eql(headerCaptions);
+}).before(async () => createWidget('dxCardView', {
+  dataSource: [
+    { a: 1, b: 2, c: 3 },
+  ],
+  columns: ['a', 'b', 'c'],
+  allowColumnReordering: true,
+}));

e2e/testcafe-devextreme/tests/cardView/helpers/cardUtils.ts

@@ -0,0 +1,26 @@
+import CardView from 'devextreme-testcafe-models/cardView';
+
+const FIELD_CAPTION_SELECTOR = '.dx-cardview-field-caption';
+
+const getCardFieldCaptions = async (
+  t: TestController,
+  cardView: CardView,
+  expectedCount: number,
+  cardIndex = 0,
+): Promise<string[]> => {
+  const card = cardView.getCard(cardIndex);
+  const captionElements = card.element.find(FIELD_CAPTION_SELECTOR);
+
+  await t.expect(captionElements.count).eql(expectedCount);
+
+  const captions: string[] = [];
+
+  for (let i = 0; i < expectedCount; i += 1) {
+    const caption = await captionElements.nth(i).innerText;
+    captions.push(caption.replace(/:$/, ''));
+  }
+
+  return captions;
+};
+
+export { getCardFieldCaptions };

packages/devextreme/js/__internal/grids/new/card_view/widget.test.ts

@@ -224,3 +224,88 @@ describe('absence of multiple re-render', () => {
     });
   });
 });
+
+describe('reactivity to column option changes', () => {
+  const dataSource = [
+    { id: 1, name: 'Audi' },
+    { id: 2, name: 'BMW' },
+  ];
+
+  const columns = [
+    { dataField: 'id', caption: 'ID' },
+    { dataField: 'name', caption: 'Name' },
+  ];
+
+  it('should re-render cards when column caption changes', () => {
+    const cardTemplate = jest.fn();
+
+    const container = document.createElement('div');
+    const cardView = new CardView(container, {
+      keyExpr: 'id',
+      dataSource,
+      columns,
+      cardTemplate,
+    } as CardViewOptions);
+
+    cardTemplate.mockClear();
+    cardView.columnOption('name', 'caption', 'Vehicle');
+
+    expect(cardTemplate).toBeCalledTimes(dataSource.length);
+  });
+
+  it('should re-render cards when column format changes', () => {
+    const cardTemplate = jest.fn();
+
+    const container = document.createElement('div');
+    const cardView = new CardView(container, {
+      keyExpr: 'id',
+      dataSource,
+      columns,
+      cardTemplate,
+    } as CardViewOptions);
+
+    cardTemplate.mockClear();
+    cardView.columnOption('id', 'format', 'currency');
+
+    expect(cardTemplate).toBeCalledTimes(dataSource.length);
+  });
+
+  it('should re-render cards when column alignment changes', () => {
+    const cardTemplate = jest.fn();
+
+    const container = document.createElement('div');
+    const cardView = new CardView(container, {
+      keyExpr: 'id',
+      dataSource,
+      columns,
+      cardTemplate,
+    } as CardViewOptions);
+
+    cardTemplate.mockClear();
+    cardView.columnOption('name', 'alignment', 'right');
+
+    expect(cardTemplate).toBeCalledTimes(dataSource.length);
+  });
+
+  it('should not re-render cards when sort/filter options change without data change', () => {
+    const cardTemplate = jest.fn();
+
+    const container = document.createElement('div');
+    const cardView = new CardView(container, {
+      keyExpr: 'id',
+      dataSource,
+      columns,
+      cardTemplate,
+      sorting: {
+        mode: 'single',
+      },
+    } as CardViewOptions);
+
+    cardTemplate.mockClear();
+    cardView.columnOption('name', 'sortOrder', 'asc');
+
+    // Should be called dataSource.length times (once per card for data update),
+    // not dataSource.length * 2 (which would indicate extra re-render from column metadata).
+    expect(cardTemplate).toBeCalledTimes(dataSource.length);
+  });
+});

packages/devextreme/js/__internal/grids/new/grid_core/items_controller/items_controller.ts

@@ -5,9 +5,28 @@ import { ColumnsController } from '@ts/grids/new/grid_core/columns_controller/co
 import { DataController } from '@ts/grids/new/grid_core/data_controller/data_controller';
 import { SearchController } from '@ts/grids/new/grid_core/search/index';
 
-import type { CardInfo, Column, FieldInfo } from '../columns_controller/types';
+import type {
+  CardInfo, Column, FieldInfo, VisibleColumn,
+} from '../columns_controller/types';
 import type { DataObject, Key } from '../data_controller/types';
 
+// NOTE: Column properties that do NOT affect card rendering.
+// Changes to these properties trigger data reload via dataController.items,
+// so subscribing to them in visibleColumns causes extra re-renders (T1306983, T1309423).
+const NON_LAYOUT_COLUMN_KEYS: ReadonlySet<string> = new Set([
+  'sortOrder',
+  'sortIndex',
+  'filterValues',
+  'filterType',
+]);
+
+const getColumnLayoutKey = (column: VisibleColumn): string => {
+  const entries = Object.entries(column)
+    .filter(([key]) => !NON_LAYOUT_COLUMN_KEYS.has(key));
+
+  return JSON.stringify(entries);
+};
+
 export class ItemsController {
   private readonly selectedCardKeys = signal<Key[]>([]);
 
@@ -19,12 +38,25 @@ export class ItemsController {
 
   public readonly additionalItems = signal<CardInfo[]>([]);
 
+  // NOTE: Tracks column properties that affect card rendering.
+  // Sort/filter properties are excluded — data changes from sort/filter arrive
+  // separately via dataController.items, so subscribing to them causes extra re-renders.
+  private readonly visibleColumnsLayout = computed(
+    () => JSON.stringify(
+      this.columnsController.visibleColumns.value
+        .map(getColumnLayoutKey),
+    ),
+  );
+
   public readonly items = computed(
     () => {
       // NOTE: We should trigger computed by search options change,
       // But all work with these options encapsulated in SearchHighlightTextProcessor
       // eslint-disable-next-line @typescript-eslint/no-unused-expressions
       this.searchController.highlightTextOptions.value;
+      // eslint-disable-next-line @typescript-eslint/no-unused-expressions
+      this.visibleColumnsLayout.value;
+
       return this.dataController.items.value.map(
         (item, itemIndex) => this.createCardInfo(
           item,