Re: NSTreeController content array bindings
Re: NSTreeController content array bindings
- Subject: Re: NSTreeController content array bindings
- From: "Mazen M. Abdel-Rahman" <email@hidden>
- Date: Mon, 23 Nov 2009 18:13:20 -0700
Thanks everyone for your help on this.
Turns out my problem was initializing and adding objects to my array to late in the process - I was doing it in the windowDidLoad function - by which time the bindings have already happened - and since I was add objects to the array by just using the addObject function the NSTreeController was not being informed of the changes. When I moved the array initializing to the init function everything worked.
Thanks,
Mazen
On Nov 23, 2009, at 4:37 AM, Mike Abdullah wrote:
> http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/CocoaBindings/Concepts/Troubleshooting.html#//apple_ref/doc/uid/TP40002148
>
> Don't bind to an NSMutableArray. Bind to an array property of an object.
>
> On 23 Nov 2009, at 03:20, Mazen M. Abdel-Rahman wrote:
>
>> Hi All,
>>
>> I am having trouble binding an NSTreeController's content array to an NSMutableArray through interface builder.
>>
>> In the bindings inspector of Interface Builder I bind to file's owner - which in my case is a subclass of NSWindowController, and set the model key path the the name of the NSMutableArray I want to bind to. This does not seem to be working.
>>
>> However, if in my code I call the setContent method of NSTreeController passing in the array then it works. So I know I can do it programmatically - but I was wondering why it's not working when I try it through interface builder.
>>
>> Thanks,
>> Mazen Abdel-Rahman
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