Postback value from Raddatepicker to Radgrid

     I have a RadDatePicker rdp1 and a Radgrid with 1 RadDatePicker rdp2 in GridTemplateColumn in RadGrid with BatchEdit mode. I want that each time i choose date in rdp1 ( E.g: 20/10/2015 - dd/mm/yyyy ), rdp2 will auto set new value in all row  ( E.g: 10/15 - mm/yy ). That all what i want to do.

Any help appreciated,
Thanks,
Hiep