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Custom binding like NSCollectionView

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Custom binding like NSCollectionView

Subject: Custom binding like NSCollectionView
From: Alejandro Rodriguez <email@hidden>
Date: Sun, 3 May 2009 02:57:40 -0400

Hello all,

I'm making a custom controller that should behave like a mix of NSTableView and NSCollectionView but I'm having trouble with makings bindings for it. I want to be able to make bindings like the ones used in NSCollectionView (binded to the arrangedObjects keypath of a NSArrayController) NSCollectionView tracks the changes in the arrangedObjects in quite an elegant manner, for instance it knows what objects are removed when you set filter and animates them disappearing... I would like to do something similar to that but when I get notified of a change thru observeValueForKeyPath: ofObject: change: context: the change dictionary is quite useless because the new and old keys are both null. Could anyone please point me in the right direction or tell me if I'm following a dead end.

Thanks a lot and regards,

Alejandro Rodríguez_______________________________________________

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