I have Radgrid of Telerik components on my webpage , in this grid with double click the selected row go to edited mode . (I use this article http://demos.telerik.com/aspnet-ajax/grid/examples/dataediting/editondblclick/defaultcs.aspx ) now i want this : for example i'm in the first row and second column in edit mode . i want when the operator press CTRL another webpage show as pop-up ; i know how to show the pop-up page but i don't know how to programming for pressed key on aspecified column .