Hi Bosco,
Thanks for your patience.
By default, Control drag and drop should be worked for ScheduleControl. In our ScheduleControl, DragDrop event not triggered while drop the data from DatagridView. We suspect that this is a bug so we have forwarded this query to our development team for further analysis so we will check and update the details on 12th April 2019.
Regards,
Deivaselvan