On Thursday, November 5, 2009, David Catmull <uncom...@uncommonplace.com> wrote:
> This is for a NSOutlineView source view, and each group in the source view 
> contains different kinds of items. In some cases, I want them to be Core Data 
> items, so the easiest way to manage that is to use an array controller.
>


You may need to implement NSOutlineView's data source methods. There
have been at least two discussions of this on the list in the past
three months so those threads might be helpful to you!

If you come up with a better solution please post your approach though!

Matt
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