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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: "Timothy Reaves" <email@hidden>
  • Date: Tue, 29 Sep 2009 10:10:17 -0400 (EDT)
  • Importance: Normal

> On Mon, Sep 28, 2009 at 6:02 PM, Timothy Reaves
> <email@hidden> wrote:
>>     Well, I was hoping to bind buttons enabled property.  If I use a
>> regular NSArray backed controller this works.  And you can't bind (at
>> least I don't know how) with selectedObjects.  But you can with
>> selection, and an NSNotNil value transformer.
>
> What makes you think that you can't bind to selectedObjects?
>
> Also, have you tried comparing the selection proxy to NSNoSelectionMarker?
>
> --Kyle Sluder
>
>


     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.

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  • Follow-Ups:
    • Re: How to tell if NSArrayController has a selected CoreData instance?
      • From: Kyle Sluder <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>)

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