>>>with column.bound = .F. you have to fill the checkbox.Controlsource.
>>>
>>>>sparse is already set to .F.
>>>>
>>>>Thanks.
>>
>>
>>Did that, still same results.
>>
>>Thanks anyway.
>
>Did you try my suggestion?

I tryed your suggestion as a new class, can not get the class into the column visually.
error "Can not add this object to grid". I have the grid in edit mode and correct column in properties box.

I put the code, corrected, into the checkbox.refresh already there, and does not work.