Hi Dhanasekaran,
Thanks for your interest in Syncfusion Products.
Please refer the sample illustrates the implementation of the drag-and-drop feature of the TreeViewAdv control
Sample Link:
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=TreeView Sample5726519031005791926.zip
Let us know if you need any other details.
Regards,
Karthika
TreeView Sample572651903_2bcf0368.zip