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Tracking changes from bindings

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Tracking changes from bindings

Subject: Tracking changes from bindings
From: Mike Carter <email@hidden>
Date: Fri, 6 May 2005 19:59:30 -0700

Hey all, again.

Quick question. I have a "categories" panel that modifies an array of NSString "categories" through an NSArrayController. add: and remove: work great. However, I have other objects in the graph that contain references to the categories. When the user decides to remove a category, what is the best way to track that so I can set nil for those objects that referenced it? If I remove a category that is in use, it reverts to what looks like a 'description' for the address of the removed 'category' is returned: <Category: 0x03af49>

Thanks! :)

#mikec (from that fruity computer company) :)

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