Re: Use of KVC Array operators
Re: Use of KVC Array operators
- Subject: Re: Use of KVC Array operators
- From: Alexander Spohr <email@hidden>
- Date: Fri, 12 Mar 2010 23:40:54 +0100
Am 12.03.2010 um 21:06 schrieb Eli Bach:
> On Mar 12, 2010, at 12:19 PM, Eli Bach wrote:
>
>> And I did just try it, and got a binding error:
>>
>> Cocoa Bindings: Error setting value for bound property instanceOfA of object <controllerclass: 0x100675780>: [<_NSFaultingMutableSet 0x1006eab90> addObserver:forKeyPath:options:context:] is not supported. Key path: relationC
This sounds like someone tries to SET the value. Not just to read it.
That might break.
>> I figured it would be something like this, which is why I was looking at the @unionOfSets operator in particular (as that's exactly what this is, a union of all sets of relationC objects from a set of relationB objects.
>
> And to follow up, I tried both
>
> email@hiddenionC
>
> and
>
> email@hiddenionC
>
> and as an NSArrayControllers array binding [as the documentation says that @unionOfSets returns an array], and both resulted in a binding error at runtime.
Maybe you can not bind that way. I have more experience using KVC than KVO. KVC should work that way.
Sorry to have bothered you,
atze
_______________________________________________
Cocoa-dev mailing list (email@hidden)
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:
This email sent to email@hidden