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Article:
  Working with Sheets in Cocoa
Subject:   DataSource Methods
Date:   2007-07-13 14:16:01
From:   wmKanoff
The Methods used to edit the fields in the NSTableView fails.


Using the Downloaded copy of AddressBook 2, 3, and 4 I found the following:


2007-07-13 14:12:12.432 AddressBook[737] Exception raised during posting of notification. Ignored. exception: *** -[NSCFDictionary setObject:forKey:]: mutating method sent to immutable object


I am new to Cocoa and do not quite understand the error?