move values from grid to grid without database asp c#

i have a page and gridview 1 display items with quantity , i need to move the quantity and details to gridview2 as per select ,
also if i want to return the quantity and details to grid view one just i click to gridview2 choose the amount i want to return
design is ready only i need when user want to move the amount it shows pop up with nice shape

-- also i need to print the remaining ( code of way of printing shape is already done)