You've checkbox bound to the numeric field? Try

This.Value = IIF(This.Value=0, 1, 0)

>I get a Data type mismatch when using that code.
>
>>See Re: Enter Key on a CheckBox in a Grid Message #717011.
>>
>>>Thanks guys. Another thing about the chkbox -- How do you get the cursor to skip over that column when entering across the grid? I've tried setting the chkbox.TabStop to .F., but, alas, the cursor still stops in the chkbox. This is not good because if the user presses the Enter key to continue on to the next cell in the grid, something my users are used to doing, it toggles the chkbox value. I've looked in the properties of the column itself, but no TabStop property there. TIA.
>>>