Re: More bindings confusion
Re: More bindings confusion
- Subject: Re: More bindings confusion
- From: mmalcolm crawford <email@hidden>
- Date: Fri, 16 Jul 2004 08:36:30 -0700
On Jul 16, 2004, at 2:20 AM, Gwynne wrote:
On Jul 16, 2004, at 2:59 AM, ScottAnguish wrote:
So if I bind a view's "enabled" binding to Shared Application using
the model key path "delegate.kvcCompliantMethod", and implement
kvcCompliantMethod in the NSApplication delegate, it will work, but
I lose... what?
As I said, you shouldn't, you should use an object controller as an
intermediate.
an object controller knows when the document needs to get/abandon
changes, and is informed when the UI items change focus, which can
cause changes to be committed or abandoned.
always use an object controller. always always always.
1) How do I link an NSObjectController to the shared application, in a
nib whose File's Owner isn't the application?
In the Bind to: popup menu, select "Shared Application"...
2) What exact difference does it make in a non-document-based
application?
Please read the documentation:
<
http://developer.apple.com/documentation/Cocoa/Conceptual/
CocoaBindings/Concepts/WhatAreBindings.html>
See section: "Why Are NSControllers Useful?"
mmalc
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