How to use Key Value Coding to Set Property Values in ABPerson

Answer 1

This is more of a application design question than anything else. The way I see it with what you have, you're going to need a "long switch statement" somewhere. Maybe the cleanest way would be in a message you send yourself with a signature like:

- (ABPropertyID)recordPropertyFromMyEnum:(MyEnumType)property

Consider this: if the only enumerations you have line up one-for-one with an ABPropertyID, why not just use ABPropertyID instead?