Re: NSTreeController selection and Swift
Re: NSTreeController selection and Swift
- Subject: Re: NSTreeController selection and Swift
- From: Rick Mann <email@hidden>
- Date: Tue, 24 May 2016 23:49:22 -0700
> On May 24, 2016, at 23:45 , Quincey Morris <email@hidden> wrote:
>
> On May 24, 2016, at 23:26 , Rick Mann <email@hidden> wrote:
>>
>> Eh, I think I'll just use my current workaround using NSOutlineView methods.
>
> Really? There’s nothing wrong with using ‘selectedObjects’. The only drawback is that it has to create an actual NSArray each time you ask for it, but that’s not a meaningful performance penalty in most situations.
>
> Another alternative is to bind the tree controller’s selectionIndexPaths binding to a property in your view/window controller. In effect, that binds the outline view’s selection *through* the tree controller to your property. Because it’s maintained by a binding, the property will be KVO compliant, or you can use the ‘outlineViewSelectionDidChange:’ delegate method. (The difference is that the delegate method is not invoked for *programmatic* changes of the selection.)
Oh, that sounds like the right solution. Thanks!
--
Rick Mann
email@hidden
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