@progress/kendo-angular-treelist/selection/is-selected.d.ts

Kendo UI TreeList for Angular - Display hierarchical data in an Angular tree grid view that supports sorting, filtering, paging, and much more.

/**-----------------------------------------------------------------------------------------
* Copyright © 2026 Progress Software Corporation. All rights reserved.
* Licensed under commercial license. See LICENSE.md in the project root for more information
*-------------------------------------------------------------------------------------------*/
import { ColumnBase } from '../columns/column-base';
/**
 * Represents the callback used by the [`isSelected`](https://www.telerik.com/kendo-angular-ui/components/treelist/api/treelistcomponent#isSelected) property.
 * Use this function to determine if a data item is selected.
 *
 * @example
 * ```ts
 * public isSelected(dataItem: any, column?: ColumnBase, columnIndex?: number): boolean {
 *   return dataItem.selected;
 * }
 * ```
 */
export type IsSelectedFn = (dataItem: any, column?: ColumnBase, columnIndex?: number) => boolean;