Re: How to tell if NSArrayController has a selected CoreData instance?
Re: How to tell if NSArrayController has a selected CoreData instance?
- Subject: Re: How to tell if NSArrayController has a selected CoreData instance?
- From: Quincey Morris <email@hidden>
- Date: Mon, 28 Sep 2009 21:29:46 -0700
On Sep 28, 2009, at 18:11, Kyle Sluder wrote:
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
I may have missed something earlier in the thread, but the standard
"canRemove" property amounts (for an array controller) pretty much to
"is anything selected?" It's not a ridiculous choice for a binding to
control other button enable states, even though I guess there's a
semantic difference.
Perhaps there's a valid reason not to conflate the two, but it's just
a suggestion.
FWIW
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