Re: outlineViewSelectionDidChange not called

FROM : Jonathan Dann
DATE : Mon Mar 31 22:38:40 2008

Hi Adam,

I've found that programmatically changing the selection using the tree 
controller's -setSelectionIndexPath(s): will always send the 
NSOutlineViewSelectionDidChangeNotification, you might want to have a 
look here

http://www.wilshipley.com/blog/2006/04/pimp-my-code-part-10-whining-about.html

in particular the -indexPathToObject: method, which allows you to 
write things like this:

[treeController setSelectionIndexPath:[treeController 
indexPathToObject:anObject]];

which then send the note.  In 10.5 the NSTreeNode has an -indexPath 
method, but (AFAIK) there's still not an out-of-the-box way of taking 
an arbitrary object in your model and getting its indexPath in the 
tree. I've requested an enhancement : rdar://problem/5832408

Happy hunting,

Jon