it still doesn't work, maybe because i was already using the onItemDataBound for inserting the dropdownlists into the datagrid...
When page loads, i get in the 3rd columns "1" => normal, 1 is default checked value
But when i change a value in a dropdown, all values in the 3rd column disappear...
Do you see what i'm doing wrong?
Has it smth to do with the IsNothing(drop1)?