Problems with NSArrayController and keyPath Operator
Problems with NSArrayController and keyPath Operator
- Subject: Problems with NSArrayController and keyPath Operator
- From: Brian Williams <email@hidden>
- Date: Wed, 29 Nov 2006 16:05:58 -0800
With a coredata model like this:
Departments contain one or more Employees and Employees have one
manager(a relation to an employee).
In IB I have an ArrayController of Departments and an ArrayController
of Employees of the selected Department. This works fine.
What I want is an ArrayController of Managers of the selected
Department. I have tried binding to the Departments controller with
the keyPath email@hiddener, but I get this
error:
[<_NSFaultingMutableSet 0x3693b0>
addObserver:forKeyPath:options:context:] is not supported.
Key path: manager' that raised during posting of delayed perform with
target 397740 and selector 'invokeWithTarget:'
Can someone please explain to me why this wont work? I have read all
the Key-Value programming guides and the bindings guide, if they say
why this shouldn't work I missed it. Is it that key-value operators
don't work with CD sets?
Thanks in advance for any insight provided.
Brian
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