title: Stream.Length throws NotSupportedException
body: <p>I am getting a error when attempting stream.Length on a Stream object sent into my WCF method.</p>
  
  <pre><code>Unhandled Exception!
   Error ID: 0
   Error Code: Unknown
   Is Warning: False
   Type: System.NotSupportedException
   Stack:    at System.ServiceModel.Dispatcher.StreamFormatter.MessageBodyStream.get_Length()
  </code></pre>
  
  <p>How do you get the length of the stream? any examples?</p>