ASP.NET Core TreeView Drag and Drop

Telerik UI for ASP.NET Core supports the drag-and-drop feature for many of its components. Depending on the specific component and scenario, dragging and dropping enable you to perform various operations in a fast and efficient way by dragging an element to a dropzone. For example, you can reorder rows inside and outside a table, implement the editing functionality in a component, or reorder tree nodes.

Whatever dragging and dropping target as a scenario, the drag-and-drop feature of the Telerik UI for ASP.NET Core components is based and built upon on the Kendo UI for jQuery Drag and Drop approach. The Drag and Drop combines the kendoDraggable and kendoDropTarget controls, whose capabilities seamlessly integrate with the whole suite components.

The Telerik UI for ASP.NET Core TreeView exposes a drag-and-drop functionality. To enable it, enable the DragAndDrop() option. Now, you can drag and drop nodes at all levels within the TreeView or between multiple TreeViews. The dragged node has a tooltip, which indicates where it can be dropped. Also, if the dragged node has child nodes, they are moved along with their parent at the destination node.

You can customzie the default drag-and-drop behavior by handling the DragStart, Drag, DragEnd, and Drop. For more information on the Treeview event handling, refer to the Events section in the documentation.

This example demonstrates how you can drag and drop nodes between different parents in the same TreeView or between different component instances.

This TreeView example is part of unique collection of hundreds of ASP.NET Core demos, with which you can see all Telerik ASP.NET Core components and their features in action. View the source code of the demos from the library or directly adapt, and edit them and their theme appearance in Telerik REPL for ASP.NET Core or ThemeBuilder.