NSViewController binding problem

FROM : Dan Messing
DATE : Thu May 01 01:27:42 2008

Hi, I'm working on refactoring some views into their own nib files, 
and am taking a stab at using NSViewControllers. When I instantiate 
the view controller I set its representedObject to an 
NSArrayController. Something like this:

viewController = [[SSCustomViewController alloc] 
initWithNibName:@"newView" bundle:nil];
[viewController setRepresentedObject:arrayController];

In the new nib file, I set the File's Owner to the 
SSCustomViewController class, then bind values of columns in an 
NSTableView to File's Owner using key paths like 
"representedObject.arrangedObjects.displayText".

For some reason this seems to be failing - nothing shows up in my 
table view, although I can confirm that the array controller contains 
data.

However, when I instead set up the bindings in the custom view 
controller's awakeFromNib method, everything seems to work:

[[myTable tableColumnWithIdentifier:@"displayText"] bind:@"value" 
toObject:[self representedObject] withKeyPath:@"arrangedObjects. 
displayText" options:nil];

Can anybody offer any clues as to what might be going on here, and why 
setting up bindings in IB isn't working?

- Dan