>Naomi,
>
>>I was just thinking that I would have to use character, e.g. unbind in gotfocus, let the user type, then replace in lostfocus...
>
>FWIW, Megafox book has an extensive numeric-textbox class for calculator-type input, and it relies generally
>on this approach. I use the Visual FoxExpress framework, and could not make it work acceptably
>within that context. I ended up implementing an unbound character-type numeric textbox that, in turn,
>updates a bound numeric textbox with Visible=.F. On the minus side, I did not like having to settle for
>using 2 controls for a single task. On the plus side, I was able to fine-tune very well the character-type
>numeric textbox to trap invalid user input and issue detailed error messages.
>
>-mark

Mark,

Have you been able to implement your class in the grid? Do you instantiate one of the classes on the fly?

Can you please elaborate more on your approach?