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Observing NSArrayController selectionIndex always returns null

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Observing NSArrayController selectionIndex always returns null

Subject: Observing NSArrayController selectionIndex always returns null
From: Ken Tozier <email@hidden>
Date: Sun, 9 Nov 2008 03:59:24 -0500

Hi

I'm trying to observe an NSArrayController's selectionIndex which, according to the documentation here:

http://developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/Classes/NSArrayController_Class/Reference/Reference.html#/ /apple_ref/occ/instm/NSArrayController/selectionIndex

Is an observable property.

Changes do trigger the observer's "observeValueForKeyPath" method but trying to fetch the value using

[inChange objectForKey: NSKeyValueChangeNewKey]

Always returns null. Is this a bug in NSArrayController?


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