Keary, You guessed it. I changed the observer to the arrangedObjects property of the array controller and now I'm getting notified of changes.
Thanks! Jason On Fri, Feb 22, 2008 at 11:24 AM, Keary Suska <[EMAIL PROTECTED]> wrote: > on 2/22/08 2:45 AM, [EMAIL PROTECTED] purportedly said: > > > [container addObserver: self forKeyPath: @"characteristics.myarray" > options: > > 0 context: NULL]; > > AFAIK, you can't observe changes to the *contents* of an array using the > above; you can only observe when the array object itself is replaced. If, > however, you observe the arrangedObjects property of the array controller, > you will get notified when objects are added or removed. > > > I have a NSArrayController object set up to manage changes by a user to > the > > NSMutableArray object through a table view. I also have a button that, > when > > clicked, adds a row to the table. Such a change to the array does not > seem > > to be sending a "changed" message to the observer (the > ContainerController > > object). I am pretty sure that I've followed the KVO criteria regarding > this > > array object. How should I set this up so that my ContainerController > object > > will be notified when an element is added to the array? > > You may have followed KVO, but did you follow KVC, and hence have indexed > accessors? If so, then you can trap additional and deletions, and even > replacements if you implemented the optional accessor. > > Best, > > Keary Suska > Esoteritech, Inc. > "Demystifying technology for your home or business" > > > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/misterbarker%40gmail.com > > This email sent to [EMAIL PROTECTED] > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
