@progress/kendo-angular-treeview
Version:
Kendo UI TreeView for Angular
37 lines (36 loc) • 1.74 kB
TypeScript
/**-----------------------------------------------------------------------------------------
* Copyright © 2025 Progress Software Corporation. All rights reserved.
* Licensed under commercial license. See LICENSE.md in the project root for more information
*-------------------------------------------------------------------------------------------*/
import { Observable } from 'rxjs';
import { LoadMoreRequestArgs } from './load-more-request-args';
/**
* @hidden
*/
export interface LoadMoreService {
/**
* Specifies the callback that will be executed when the load more button is clicked.
* Providing a `loadMoreNodes` function is only required when additional nodes are fetched from the server on demand.
*/
loadMoreNodes?: (loadMoreArgs: LoadMoreRequestArgs) => Observable<any[]>;
/**
* Specifies the initial number of nodes that will be rendered for the specified data item children group.
* Every time the load more button is clicked, the data item page size will be incremented with this number.
*/
getInitialPageSize: (dataItem: any) => number;
/**
* Gets the current page size for the targeted data item children collection.
*/
getGroupSize: (dataItem: any) => number;
/**
* Sets the current page size for the targeted data item children collection.
*/
setGroupSize: (dataItem: any, pageSize: number) => void;
/**
* Retrieves the total number of child nodes for the targeted data item.
*
* @param dataItem The parent item of the checked group.
* @param loadedNodesCount The number of already loaded nodes via the `children` function.
*/
getTotalNodesCount: (dataItem: any, loadedNodesCount: number) => number;
}