Re: Binding to selection of NSArrayController
Re: Binding to selection of NSArrayController
- Subject: Re: Binding to selection of NSArrayController
- From: Lee Ann Rucker <email@hidden>
- Date: Tue, 23 Sep 2014 18:36:50 +0000
- Thread-topic: Binding to selection of NSArrayController
On Sep 23, 2014, at 9:15 AM, Jonathan Taylor <email@hidden> wrote:
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> [*] One slight glitch - if I add an object to the NSMutableArray then it does not immediately show up in the table, I have to call will/didChangeValueForKey on the property that returns the array. I don’t know if that is expected behaviour (maybe I should be adding via the array controller somehow?). This is not a problem, but I mention it for completeness, just in case it’s indicative of something funny that is going on that I don’t fully appreciate.
Yes, it’s complicated. The ArrayController doesn’t know about changes that are made directly to the NSMutableArray. You can use [NSArrayController addObject:] for simple cases, or spend a lot of time with the KVC programming guide, especially “Collection accessor patterns for to-many properties”.
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