I re-typed everything in a freshly produced document based application. Below is the top of the MyDocument.h file.
//
//  MyDocument.h
//  Blood Pressure Record
//
//  Created by Clayton Leitch on 9/3/09.
//  Copyright __MyCompanyName__ 2009 . All rights reserved.
//

#import <Cocoa/Cocoa.h>

@interface MyDocument : NSPersistentDocument {

As you can see it is an NSPresistentDocument.
On Sep 4, 2009, at 10:44 AM, I. Savant wrote:

On Sep 4, 2009, at 10:38 AM, Clayton Leitch wrote:

The debugger shows 0 objects in the array. Interestingly, this same code works perfectly in a non-NSDocument version of this application.

Wait, when you say it works in a non-NSDocument-based version, it makes me wonder: did you copy code from a non-doc-based app into a doc-based app? If so, is your document subclass really an NSDocument subclass or an NSPersistentDocument subclass?

--
I.S.




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