I learnt something today. Maybe it will be useful to you guys ...
didn't see anything in any of the usual Cocoa places describing
it ... so I hope documenting here may save someone a bit of hassle at
some point. I'll probably drop a line in Apple's radar after I play
with it a bit more ... so anywho ...
If you have an NSToolbar ... and if you put an NSPopUpButton within
it ... and if you bind that NSPopUpButton to a set of
NSManagedObjects by way of NSArrayController, then you have to
implement initWithCoder and encodeWithCoder in your NSManagedObject
subclass. The NSCoding methods can be stubs that do nothing but
return and return nil respectively ... but if you don't adopt the
NSCoding protocol (even though it's useless in CoreData), then
whenever an end user tries to customize your toolbar, he/she will
experience all sorts of fun problems. :)
Back to cocoa-dev lurking. :)
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