System.IO.Stream.Dispose C# (CSharp) Méthode

        protected virtual void Dispose(bool disposing)
        {
            // Note: Never change this to call other virtual methods on Stream
            // like Write, since the state on subclasses has already been 
            // torn down.  This is the last code to run on cleanup for a stream.
            if ((disposing) && (_asyncActiveEvent != null)) 
                _CloseAsyncActiveEvent(Interlocked.Decrement(ref _asyncActiveCount));
        }

 private static void DisposeObject(ref HttpWebRequest request, ref HttpWebResponse response,
     ref Stream responseStream, ref StreamReader reader)
 {
     if (request != null)
     {
         request = null;
     }
     if (response != null)
     {
         response.Close();
         response = null;
     }
     if (responseStream != null)
     {
         responseStream.Close();
         responseStream.Dispose();
         responseStream = null;
     }
     if (reader != null)
     {
         reader.Close();
         reader.Dispose();
         reader = null;
     }
 }