public void NSOutlineView_InsertNull()
{
NSOutlineView v = new NSOutlineView();
v.BeginUpdates(); // We do this to prevent a crash: Insert/remove/move only works within a -beginUpdates/-endUpdates block or a View Based TableView
v.InsertItems(new NSIndexSet(0), null, NSTableViewAnimation.None);
v.EndUpdates();
}