Telerik RadTreeView supports "drag and drop" functionality for treenodes. To enable this mode you need to mark the instance of RadTreeView with the DragAndDrop attribute:
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DragAndDrop="True"
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You can also select multiple treenodes using the MultipleSelect attribute:
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MultipleSelect="True"
DragAndDrop="True"
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Then simply select a few nodes by holding down the Ctrl key and drop them onto another TreeNode of the same treeview, a TreeNode of another treeview, or any HTML element on the page.
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You can use Telerik RadTreeView multiple select drag & drop feature with a complex structured treeview within a limited size for the treeview. Use the Ctrl+Left mouse button multiple selection method. Then use the middle scroll mouse button to scroll to the needed position and drop there the selected nodes. |
When RadTreeView detects a valid drag-and-drop operation (the selected node is dropped onto another node) it generates a NodeDrop server-side event. The event is set to the source treeview - the one from which the node is being dragged. The event handler for NodeDrop can then perform specific action, by fetching both the source and destination drag/drop nodes. In this event you can use the RadTreeViewInstance.GetSelectedNodes() method to get a collection of all dragged nodes and the RadTreeNodeEventArgs.Node
See a live example of Drag and Drop inside a TreeView, between TreeViews and between TreeView and an HTML element at:
Drag And Drop
See Also