On 25/03/2008, at 11:42 AM, Hamish Allan wrote:
Is there any way to use bindings for a source list? The object that gets passed to the delegate method -outlineView:isGroupItem: is an NSTreeControllerTreeNode which doesn't appear to have a public API...
Class-dump shows that NSTreeControllerTreeNode is a subclass of NSTreeNode so you should be able to treat it as such and get the relevant object for the item by calling -representedObject.
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