Re: Why is copyWithZone: being called?
Re: Why is copyWithZone: being called?
- Subject: Re: Why is copyWithZone: being called?
- From: "Sean McBride" <email@hidden>
- Date: Mon, 21 Feb 2005 15:02:03 -0500
- Organization: Rogue Research
On 2005-02-21 13:20, T Reaves said:
> I am working on an application utilizing bindings. I have a UI page
>bound to a domain object via an NSArrayController - the domain object
>has only NS* data members - , and that works well. I then added a
>second domain object, and the first (bound) object no has the second
>domain object as a data member.
>
> So I added the new keys to the NSArrayController using the dot
>notation (attribute.attribute). I then bound the new widgets in the UI
>to the new keys of the controller. Now, when I start the app, I get
>the error:
>*** -[Range copyWithZone:]: selector not recognized
>
> I know how to implement copyWithZone:. What I do not understand is
>why I must. Why is it that when a domain object contains only NS* data
>members, bindings do not call copyWithZone:, but when a domain object
>contains other domain object data members copyWithZone: is called?
I have seen the same message. In my case, it was because I set the
bindings up wrong. I also wondered where and why I would have to
implement copyWithZone:, but in fact I did not need to. Triple check how
you have things bound, I bet you made a boo-boo. :)
--
____________________________________________________________
Sean McBride, B. Eng email@hidden
Rogue Research www.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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