>>One more complication for Amenities field - this field is 10 char long and it's a concatenation of codes, e.g. ABCUD, where each letter is a code. How would we filter those contain incorrect codes?
>
>For this one, I don't know a simpler alternative than to use a FOR loop.
>
>

>* Function for validation)
>local i
>for i = 1 to len(amenities)
>  if not substr(Amenities, i, 1) $ "ABCDE" && or other valid codes
>    return .F.
>  endif
>next
>

>
>Hilmar.

No, I need one SET FILTER TO command, so loop would not work. I guess, I can put all codes in a thisform.cAmenities string, then something using chrtran. However, even this idea has some problems, because Set Filter is another form, which would not now about main form...