Disable the parent nodes selection of the Kendo UI for Angular TreeView.

Copy Code    <kendo-treeview
        (nodeClick)="handleNodeClick($event)"
    >
    </kendo-treeview>

Copy Code  public selectedKeys: Set<number> = new Set();

  public isNodeSelected = dataItem => this.selectedKeys.has(dataItem.id);

  public hasChildren = dataItem =>
    Array.isArray(dataItem.items) && dataItem.items.length > 0;

  public handleNodeClick(event: NodeClickEvent): void {
    const dataItem = event.item.dataItem;

    if (!this.hasChildren(dataItem) && !this.isNodeSelected(dataItem)) {
      this.selectedKeys.add(dataItem.id);
    } else {
      this.selectedKeys.delete(dataItem.id);
    }
  }

Copy Code    <kendo-treeview
        [isSelected]="isNodeSelected"
    >
    </kendo-treeview>

Copy Code    public isNodeSelected = dataItem => this.selectedKeys.has(dataItem.id);