Hi Pallini,
Thanks for your interest in Syncfusion Products.
Please refer the sample illustrates the implementation of the File Explorer.
[Sample Link]
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=TreeView Sample5726519031427729943.zip
We have binded items into TreeView using ItemsSource.
Files will move into Folders and items wont move into Files.
Let us know if you need any other details.
Regards,
Karthika
TreeView Sample572651903_e343d3f8.zip