Drag Row between GridViews and save in Database using jQuery AJAX in ASP.Net

In the link:

http://www.aspforums.net/Threads/731739/Drag-Rows-from-one-GridView-to-another-and-save-in-Database-using-jQuery-AJAX-in-ASPNet/

We can save in DataBase the Append row Dest Grid, but what happen if I drop it out of the Dest Grid (the drop rows from Dest Grid return to Source Grid) , i would like to get the drop row data for delete it in DataBase.

Thanks you very much for your read!