This JavaScript (ES5) TreeView example demonstrates the binding of local data to the TreeView. Click on node to select it, and click on icon or double click on node to expand/collapse it.
The TreeView component loads the data through the dataSource property, where the data can be either local data or remote data. In case of local data, the data structure can be hierarchical data or list data (with self-referential format i.e., mapped with the id and parentID fields). In this demo, the first TreeView is bound with the hierarchical data that contains array of nested objects. And the second TreeView is bound with the list type data where the parent-child relation is referred by the id and parentID mapping fields. For more information, you can refer to the Data Binding section from the documentation.