>>this.nGrid1.column5.text1.InputMask=g_pc
>>
>>G_pc is defined elsewhere; in the debugger I see it properly assigned to the InputMask property of the textbox in the column. Still, the numbers show without it. Any clues?
>
>Is your column's sparse property set to .F.? Otherwise default textbox displays in inactive cells.

Thankxs, it worked. What confused me was that I _was_ using the default textbox, but seems to just thinking of touching it is enough to make it non-default.