This shouldn't happen. Do you have any conditions in the valid?

>A valid method of textbox contains a dodefault() and additional validation code. DoDefault() code returns 0 if not valid.
>The dodefault()code is only processed the first time the valid method is called. Subsequently when the valid method is called only the additional validtion code is processed.
>How can I get the Dodefault() processed on each call to the valid method