New Post: CheckComboBox selectedItems

Thanks, BoucherS! I just noticed this Discussion (20 days later)! CodePlex really should have a way of notifying commenters when people reply. Oh well, it's a moot point, since they're shuttering. So, are you an employee of Xceed?

1. Re. "SelectedItems": Thx, I should've read the docs. The combo of this and the "SelectedItemsOverride" Properties is unusual way of implementing a multi-item Control. Any idea why?
   
2. Re. "SelectedItemsOverride": Ok. It's working.
   
3. "SelectedItemsOverride"'s Bound Property's is being updated by the View, but its Setter is never called. Do I have to Handle the Backing Variable's "CollectionChanged" Event or Bind to the "Command" Property to be notified when a selected items have changed?
   
4. I just noticed that the "Command" that's usually executed whenever an item is toggled doesn't get called the first time I assign "SelectedItemsOverride" to a new "ObservableCollection" I've built.
   

Let me know if any of this shold be a new Discussion(s).