Ok, what is the controlsource? And what is its value type? It may be set to numeric value initially!

>It is a checkbox that is located in the rows of the grid.
>
>>What is "ThisForm.grdPersonnel_c.ColActive.ChkActive.Value"? Is it a field in the grid record? How is it related to particular grid record?
>>
>>
>>>Sorry that I have taken so long to respond.
>>>
>>>The code that I am using in the dynamicbackcolor property is
>>>IIF(ThisForm.grdPersonnel_c.ColActive.ChkActive.Value,RGB(0,255,0) , RGB(255,0,0) )
>>>
>>>Bob
>>>
>>>>Not clear how it happend if you apply dynamicbackcolor to particular column only. Could you post the exact code line where you set dynamicbackcolor?
>>>>
>>>>>How do you dynamically change the back color of a CELL in a grid.
>>>>>
>>>>>I have a combo box in a different cell of the grid that, depending on the contents of the combo box, enables or disables access to other cells in that row.
>>>>>
>>>>>The txtbox.enable = .f. is working correctly for the cells that I want to limit access to but the user has no visual refrence that they cannot enter the cell. I would like to turn individal cells background colors gray (if disabled) or white (if enabled) When I try this in the dynamicbackcolor of the column it applies the change to the whole row and not the individual effected cell.
>>>>>
>>>>>Any help or ideas would be appriciated.
>>>>>
>>>>>Bob Kennedy