title: How to get events count from Microsoft Azure EventHub?
body: <p>I want to get events count from Microsoft Azure EventHub.
  I can use EventHubReceiver.Receive(maxcount) but it is slow on big number of big events. </p>
  
  <p>There is NamespaceManager.GetEventHubPartition(..).EndSequenceNumber property that seems to be doing the trick but I am not sure if it is correct approach.</p>