Legendary Selections, Dude
When you think you’ve figured it out, try this: close the test folder and reopen it so you can start fresh with no selections at all. Then, shift-click folder 6. That should select folders 0-6. Shift-clicking folder 4 selects folders 0-4. Shift clicking folder 8 selects folders 0-8.
Now, with folders 0-8 selected, command-click folder F on and off again. Then, shift-click folder A.
Shift- and Command-clicking in Mac OS X lists is probably more complicated than you thought.
> Shift- and Command-clicking in Mac OS X lists is probably more complicated than you thought.
Indeed it is. I once tried to write a generic library so developers could get "standard" behaviour more easily in their own custom controls; I had to leave lots of notes in the comments to explain which view in which app I was mimicking for each type of action:
http://code.google.com/p/selectionmanager/