Posted 07 Nov 2012 Link to this post
private
void
grid_SelectedCellsChanging(
object
sender, GridViewSelectedCellsChangingEventArgs args) {
RadGridView gridView = (RadGridView)sender;
if
(gridView.SelectedCells.Select(c => c.Column.DisplayIndex).Distinct().Count() > 1) {
args.Cancel =
true
;
}