>>>>Criss, you say "replaced" - did you actually remove it?
>>>>
>>>>Nick
>>>Yes, Nick. I deleted the native textbox and put my baseclass editbox in it's place. The column's currentcontrol is edtbase1. I did this visually, not with code.
>>
>>This is strange. Did you try to see in the Watch window what the controls are in that column at the runtime?
>
>Sorry Nick. I forgot to say VFP3.0b. No watch window. Is there some way I can determine this in this version?

You still can check it in the Debug Window like:

_screen.activeform.grid1.column1.CurrentControl

but I see that Eric already gave you the right answer. :)