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Nested binding question



Ok, so I have a class that I've written (not Core Data...) called Order,
which has a property called orderItems which is an NSMutableArray of
OrderItem instances.

 

What I've done is I've created an NSCollectionView and dropped the a
custom view into it. In this view I have a label that I want bound to
the description of the order.

 

Within this view, I also have a Table View, which I want bound to the
orderItems NSMutableArray that is on the parent Order object.

 

Can someone walk me through the steps to rig up this binding in
Interface Builder and/or code? Every attempt I've made has come _close_,
but the end results are always as though someone on drugs rigged up my
bindings.

 

Any help is much appreciated!! Thanks!

 

p.s. I have an  array controller (Orders Controller) that I am/was using
for the root bindings.

 

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