The event will be unsubscribed after the first element automatically.
However, as a good practice, you should dispose the observable subscription when you no longer need it. Consider the scenario if the StatusChanged event is not triggered or it is triggered only with PositionStatus different from Ready. In this case
you would never unsubscribe the event, thus causing a memory leak.
Marked as answer byExpechoFriday, January 24, 2014 10:11 AM