>The sample of invalid characters was just that... a sample... to get a list of all Non A-Z,a-Z,0-9, you could build a loop at the front of your app and keep it defined once... then use that var elsewhere...
>
>

>lcAllInvalid = ""
>for lnI = 1 to 255
>  if not upper( chr( lnI )) $ "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
>    lcAllInvalid = lcAllInvalid + chr( lnI )
>  endif
>endfor
>

>
>This would get even those other special characters at upper levels...
>
>Then, to see if there WERE any invalid characters, you could do...
>
>

>if len( cString ) <> len( chrtran( cString, lcAllInvalid, "" ))
>  */ if string lengths are different, an invalid char was entered
>endif
>

Are you saying that the subset of invalid characters is limited too? I thought it's unlimited, since we can have chars in different languages...

Anyway, if you want to check, if your string has invalid chars, all you have to do is:

If not empty(lcString,lcAllowedChars,"")
   ** You have invalid chars in the string
endif