I tried to put the RowSelectorColumn control in the inner datagrid of two datagrids, but it doesn't work !!! Code says that I didn't select any item which is certainly not true! I believe it's a problem with embedding one datagrid into another. Another thing is that if I use 'ctrl+spacebar' in vb code, I see my main datagrid, but I don't see the inner datagrid in the list!! So I have to get it via FindControls("innerGrid") or something like that! It's a pity that it doesn't work.. it would be a great solution for my situation here. Damn respect 2B respected