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Enabled Binding and Array Controllers

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Enabled Binding and Array Controllers

Subject: Enabled Binding and Array Controllers
From: Steve Cronin <email@hidden>
Date: Thu, 7 Feb 2008 01:43:46 -0600

Folks;

I would like to set some UI widget's enabled binding to whether or not an array controller has any arrangedObjects.

If the arrayController has no current data then the widgets should not be enabled. Once the arrayController has some arrangedObjects then these widgets should be enabled.

I can't seem to get the right settings for this in IB. Do I have to create a method that returns a boolean or is there some syntax for this directly in IB?

Bind to: ArrayController
Controller Key: arrangedObjects
Model Key Path:  ???

Thanks for your help!
Steve
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