Re: Enabled Binding bound to NSArrayController won't disable view.
Re: Enabled Binding bound to NSArrayController won't disable view.
- Subject: Re: Enabled Binding bound to NSArrayController won't disable view.
- From: Ben Lachman <email@hidden>
- Date: Sun, 17 Feb 2008 14:58:52 -0500
Thanks Jeff.
That solution worked perfectly for almost everything. I have several
other pieces of my UI that are all bound in this manner and they all
are enabled/disabled correctly. However the tableview itself is
seemingly still unaffected by it's enabled binding. In fact, even if
I stick in a vanilla table view and bind its enabled binding, it
doesn't seems to work, so now I'm wondering if the enabled binding
even works on table views. Can anyone verify this?
->Ben
--
Ben Lachman
Acacia Tree Software
http://acaciatreesoftware.com
email@hidden
740.590.0009
On Feb 17, 2008, at 9:37 AM, Jeff Johnson wrote:
Ben, check out the thread at <http://lists.apple.com/archives/Cocoa-
dev/2007/Aug/msg01021.html> for ideas. It's not precisely the same
problem discussed there, but it's essentially the same. The most
robust solution is given by mmalc, and there are also a few quick
and dirty hacks.
The NSArrayController's selection is a proxy object, so it won't
behave exactly as you expect, and you don't want to treat it as if
it were a normal object. In particular, I don't think it will ever
be nil.
-Jeff
On Feb 17, 2008, at 2:10 AM, Ben Lachman wrote:
I have a tableview who's enabled binding is bound to a
NSArrayController (not the one that feeds it via its content
binding). I'd like to be enabled when something is selected and
disabled when it is not. So far I've been unable to find a
suitable key to bind to on the array controller. It seems like
you should just be able to bind to selection with the NSIsNotNil
value transformer and set the correct placeholder options, but
apparently this doesn't work. I've tried various combinations of
selection and selectedObject with and without the NSIsNotNil value
transformer, but they don't change the view's state at all and
most of the combinations kick back nasty bindings error. I should
also note that the array controller that feeds the data to this
tableview is itself fed from coredata.
Anyone gotten something like this to work?
->Ben
--
Ben Lachman
Acacia Tree Software
http://acaciatreesoftware.com
email@hidden
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