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managedObjectContext hasChanges
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managedObjectContext hasChanges


  • Subject: managedObjectContext hasChanges
  • From: Mu Lin <email@hidden>
  • Date: Wed, 4 Oct 2006 13:37:15 -0700

Hi, All, I found that the bind to the key "hasChanges" of managedObjectContext doesn't work.

I did exactly the same as Mmalcolm suggested.  Any suggestions?

FROM : mmalcolm crawford
DATE : Mon Jun 20 22:58:33 2005

On Jun 20, 2005, at 10:47 AM, Jeff LaMarche wrote:

> In a Core Data application, I've got the Save menu item bound to
> the saveAction: of my application delegate which works. I'd like to
> have the menu disabled, however, until a change has been made. Is
> there any way to bind the enabled binding of the menu item to the
> context or model to do this, or do I have to write code to handle
> this?
>

Assuming that you're using the default configuration for a Cocoa Core
Data Application, you can bind enabled to [App
Delegate].managedObjectContext.hasChanges

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