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Re: How to tell if NSArrayController has a selected CoreData instance?
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Re: How to tell if NSArrayController has a selected CoreData instance?


  • Subject: Re: How to tell if NSArrayController has a selected CoreData instance?
  • From: Kyle Sluder <email@hidden>
  • Date: Tue, 29 Sep 2009 09:09:28 -0700

On Sep 29, 2009, at 7:10 AM, "Timothy Reaves" <email@hidden > wrote:

What makes you think you can? Logically, you shouldn't be able. I'd
imagine selectedObjects is always going to return an index set; it'd
just be empty with no selection. I did try comparing it to
NSNoSelectionMarker just in case, and that doesn't work.


Perhaps instead of imagining it would be more helpful to read the documentation. -[NSObjectController selectedObjects] returns the actual objects.

You also don't seem to understand how bindings work. Even if - selectedObjects did return an NSIndexPath, it's a KVO-compliant property and therefore perfectly suitable for binding to.

--Kyle Sluder

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  • Follow-Ups:
    • Re: How to tell if NSArrayController has a selected CoreData instance?
      • From: "Timothy Reaves" <email@hidden>
References: 
 >How to tell if NSArrayController has a selected CoreData instance? (From: Timothy Reaves <email@hidden>)
 >Re: How to tell if NSArrayController has a selected CoreData instance? (From: Kyle Sluder <email@hidden>)
 >Re: How to tell if NSArrayController has a selected CoreData instance? (From: "Timothy Reaves" <email@hidden>)
 >Re: How to tell if NSArrayController has a selected CoreData instance? (From: Kyle Sluder <email@hidden>)
 >Re: How to tell if NSArrayController has a selected CoreData instance? (From: "Timothy Reaves" <email@hidden>)

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