Re: outlineViewSelectionDidChange not called

FROM : Adam Gerson
DATE : Thu Mar 27 18:17:01 2008

>  Ah.. I'm not quite sure you got what I meant.  In a (document-based)
>  app set up an NSArray *selectionIndexPaths ivar, so the
>  NSTreeController then binds its @"selectionIndexPaths" binding to the
>  keypath @"File's Owner.selectionIndexPaths" where file's owner is the
>  owner of the nib containing the tree controller and the outline view.
>  The outline view then has its content bound to the tree controller's
>  @"arrangedObjects" controller key, the selectionIndexPaths to the
>  @"selectionIndexPaths" controller key and then the outline view's
>  table column's @"value" binding is set to the tree controller's
>  @"arrangedObjects.nodeName" (nodeName is just an NSString
>  representation of a file path).
>

Ok, I understand. So I bind both the OutlineView and the
TreeController to a third object that keeps them both in sync to the
same SelectionIndexPath value. However, when I tried this my
OutlineView was blank. I think the Outline Views's selectionIndexPaths
binding refers to the selectionIndexPaths of its content provider(in
this case the tree controller). I dont think and outline view has
selectionIndexPaths properties of its own.