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Bindings - duplicate entries in NSPopupButton

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Bindings - duplicate entries in NSPopupButton

Subject: Bindings - duplicate entries in NSPopupButton
From: Rolland Bryan <email@hidden>
Date: Fri, 17 Feb 2006 09:52:48 +0200

Briefly, I am getting duplicate entries in an NSPopupButton when invoking the insert: or add: actions of a core data model bound NSArrayController.

The details are as follows:

With NSArrayController bound to an entity in my core data model (via the managedObjectContext binding, and with "automatically prepares content" set), I have an NSPopupButton with the following bindings:

content = NSArrayController.arrangedObjects
contentValues = NSArrayController.arrangedObjects.identifier
selectedIndex = NSArrayController.selectedIndex

Then I have a button connected to the insert: action of the NSArrayController.

When I click the button to add an entity, I get two identical entries in the NSPopupButton, both referencing the same new model entity.

What am I doing wrong?

Many thanks
Rolland Bryan
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