Hello Nadya.

>> When you click in column in the grid, this column becomes activated. For comboboxes in addition it drops down the list. For me it's annoyance, but I think, it's not a big deal, since all other desired functionality works fine. <<

If it is that annoying to your end-users, you could probably set some flags and then, depending on the value of the flag, issue a NODEFAULT in the combo's DropDown method. But this is no trivial task. You would probably want to set your flag using some method of the grid column and you are very limited here. What I mean is, the obvious place for setting such a flag would be in the column's When() or GotFocus() if only a column had such methods < s >.