Hello,

A discussion that comes back regularly in our shop is the following:
In a data entry form for widgets you have to enter a description and a number only. No two widgets can have the same number. When you save the entry the program must check if the widget number does not already exist.
What would be the best code for this ? (there are two situations, 1. it is a new entry, 2. it is an edit of an existing entry).
Anybody has wisdom here ?

Thanks,