API Reference > ui-components > Tree > PagedTreeNodeLoader PagedTreeNodeLoader<TDataProvider extends TreeDataProvider> Class Default paged tree node loader with TreeDataProvider implementation. Extends AbstractTreeNodeLoaderWithProvider<TDataProvider> Implements IDisposable Methods Name Description constructor<TDataProvider extends TreeDataProvider>(dataProvider: TDataProvider, modelSource: TreeModelSource, pageSize: number): PagedTreeNodeLoader<TDataProvider> dispose(): void Disposes data source load(parentNode: TreeModelNode | TreeModelRootNode, childIndex: number): Observable<LoadedNodeHierarchy> Protected Schedules to load one page of node children and returns an Observable. Inherited methods Name Inherited from Description loadNode(parent: TreeModelNode | TreeModelRootNode, childIndex: number): Observable<TreeNodeLoadResult> AbstractTreeNodeLoaderWithProvider<TDataProvider> Do not override this method. updateModel(loadedHierarchy: LoadedNodeHierarchy): void Protected AbstractTreeNodeLoaderWithProvider<TDataProvider> A method that's called when load loads some nodes and we need to put them into model source. Properties Name Type Description pageSize Accessor ReadOnly number Returns page size used by tree node loader. Inherited properties Name Type Inherited from Description dataProvider Accessor ReadOnly TDataProvider AbstractTreeNodeLoaderWithProvider<TDataProvider> modelSource Accessor ReadOnly TreeModelSource AbstractTreeNodeLoaderWithProvider<TDataProvider> Defined in ui/components/src/ui-components/tree/controlled/TreeNodeLoader.ts Line 160 Last Updated: 11 June, 2024