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Bindings and core data

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Bindings and core data

Subject: Bindings and core data
From: Michael Süssner <email@hidden>
Date: Wed, 27 May 2009 23:18:58 +0200

Hi
I am experimenting with core data and bindings.

I have a core data table with a one to-many relationship named "participants"

I have in the same view another table displaying a list of participants. I want to add additional participants using a Popuplist with contacts and a participant is related to contacts.

So, when I have selected a contact entry, I press a button which calls method of the PopUpMenu Controller Object, which reads the selected Object by

vContact = [[self selectedObjects] objectAtIndex:0];


I have defined in the PopupMenu Controller Object
	IBOutlet NSMutableSet *selParticipants;

which I have bound to the table.selection.participants

(I do not understand that IB complains that it is not NSMutableSet)

Then I want to add the vContact to the selection.participants using addObjects but the table of participants displays invalid values.

I am not sure what is the mistake.

Michael
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