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How do I observe changes in NSArray contents?

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How do I observe changes in NSArray contents?

Subject: How do I observe changes in NSArray contents?
From: Terrence Talbot <email@hidden>
Date: Tue, 11 Oct 2005 11:44:16 -0700

Although I originally posted this question, with a longer explanation, under the title "CoreData - KVO on unarchived array/ dictionary elements?", I realized that this doesn't need to be a CoreData question and can actually be stated pretty simply:

How can I get notified when an object inside an NSMutableArray -- an array element itself, or an object within a particular array element -- is modified?

Is that possible? I see the method - addObserver:toObjectsAtIndexes:forKeyPath:options:context: on NSArray, but I don't understand what is to be supplied for keyPath.

Thanks for shedding light on this,


Terrence
--
Terrence Talbot
Karelia Software


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