Re: Once again the NSOutlineView

[Fred Kiefer]

Gregory John Casamento wrote:
> P.S. Fred, I'm aware of no place in the code where it replaces items with NULL
> if they are nil. :)

Sorry, my fault, I used the word NULL as a short hand for [NSNull null], 
as can be see in the following line (used about five times in the code 
of NSOutlineView):

  id sitem = (startitem == nil)?[NSNull null]:startitem;

This makes it possible to work with nil almost as if it was a valid 
item, but why would you want to do this? This also has been done half 
heartedly, so some of the replacements, as in the method at hand 
(reloadItem:reloadChildren:) hs not been done.