SECOND TRY. Forgot to send copy to Mathias. Mea culpa.

Mathias (via Jim's post)-

>>Valid Characters are in are "ABCD12340.()+"
>Mathias,
>
>In the KeyPress put this code;
>
>

IF NOT CHR(nKeyCode) $ "ABCD!@#$).()+"
>   ?CHR(7)   && Beep
>   NODEFAULT && Ignore key stroke
>ENDIF
>

One nice thing about going this route, rather than using INLIST() is that it's more flexible for future changes (IMO).

IOW, you might want to consider storing the valid character string in, perhaps, a form property or even a field in an appliction options table so that if you need to change the string, it's easy. Also, so that if you need access to it in more than one place, you have it available throughout your code without having to remember what it is.

A #DEFINE would also be an approach.