Re: Notification when changes occur to an array?
Re: Notification when changes occur to an array?
- Subject: Re: Notification when changes occur to an array?
- From: Mattias Arrelid <email@hidden>
- Date: Mon, 2 Oct 2006 08:56:55 +0200
This sounds like the NSMutableArray isn't completely KVO? Like
there is no method for setting a new count? Or am I wrong? *confused*
No, NSMutableArray is fully KVO, but count is not part of that, and
you shouldn't use it in the way you're proposing. There is no
method to set a new count, because it's just a derived property.
Ok, I was thinking something like that... Thanks for making things a
bit more clear.
It's not clear to me what you're trying to do, but arrays don't
magically acquire new elements, so why don't you use the method
that actually adds the object to the array to handle whatever
you're trying to handle? You'll just have to write a method that
calls the array controller's method addObject: and have your user
interface call that method instead of the addObject: method.
Well, I've been told - in this very thread - that KVO actually CAN
help me achieve what I want here. I'd rather not create a new method
that takes care of interface elements (I have lots of arrays and
buttons etc.). But maybe it's not possible without to much hassle in
this case.
Regards / Mattias
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