I have a character field that is used to contain whether a member is a 'M'ale, 'F'emale
or not answered (blank). I would like the field validation to call a stored procedure
in the DBC to validate this value. If a user enters let's say a 'Q' then and I write
my own MessageBox text and do a RETURN 0 then the fieldMessage follows.

The field message allows a cancel and revert. The problem with Revert is that
it reverts all entries on the line. Also a RETURN 0 causes a data type mismatch
since the field validation expects a logical value.

How can I use the stored procedure with my own MessageBox that does not
fire the field message text?