New to FileMaker, been working with sql-based databases before and can't really get my head around a few things.
A basic contact register: You've got a contact layout and a portal with phone numbers, an unlimited number. I've got the relationships setup etc.
One of these phone numbers is the primary, so you got a checkbox. But only one of these can be set at a time. So when the user checks one, all the other have to go unchecked, for that particular contact.
How do you do that?
Much obliged.
Martin
