DevExtreme Angular - Overview
The TreeView widget is a tree-like representation of textual data.
The following code adds a simple TreeView to your page:
jQuery
HTML
JavaScript
<div id="treeViewContainer"></div>
$(function() { $("#treeViewContainer").dxTreeView({ dataSource: [{ id: '1', text: 'Fruits', expanded: true, items: [ { id: '1_1', text: 'Apples' }, { id: '1_2', text: 'Oranges' } ] }, { id: '2', text: 'Vegetables', expanded: true, items: [ { id: '2_1', text: 'Cucumbers' }, { id: '2_2', text: 'Tomatoes' } ] }] }); });
Angular
HTML
TypeScript
<dx-tree-view [dataSource]="hierarchicalData"> </dx-tree-view>
import { DxTreeViewModule } from "devextreme-angular"; // ... export class AppComponent { hierarchicalData = [{ id: '1', text: 'Fruits', expanded: true, items: [ { id: '1_1', text: 'Apples' }, { id: '1_2', text: 'Oranges' } ] }, { id: '2', text: 'Vegetables', expanded: true, items: [ { id: '2_1', text: 'Cucumbers' }, { id: '2_2', text: 'Tomatoes' } ] }]; } @NgModule({ imports: [ // ... DxTreeViewModule ], // ... })
Note that the data source in the code above has a hierarchical structure, however, it also supports data sources with a plain structure. See the Use Hierarchical Data and Use Plain Data articles to learn how you can customize hierarchical and plain data sources.
See Also
- Widget Basics: jQuery | Angular | AngularJS | Knockout
- TreeView - Access a Node
- TreeView - Search Nodes
- TreeView - Expand and Collapse Nodes
- TreeView - Select Nodes
- TreeView - Customize Node Appearance
- TreeView - Enhance Performance on Large Datasets
- TreeView - Keyboard Support
- TreeView API Reference
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