.NET 4.5 Visual Studio 2012 WCF File Streaming with Silverlight 5

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C#

.NET

WCF

Silverlight

.NET4.5

Hi good folks,
I am trying to open a file and read the data using Silverlight where the file/Stream is effectively opened via a WCF class that encapsulates a stream.

When I attempt to implement what is described above the Async event handier return parameter, e.Result returns a Byte[] rather than a Stream, why ?

Below is what I have implemented:

namespace SilverlightApplication1.Web
{
    [ServiceContract]
    public interface IService1
    {
        [OperationContract]
        Stream GetAStream( );
    }
}

The implemented class:

public class Service1 : IService1
    {
        public Stream GetAStream( )
        {
            return new FileStream( @"C:\temp\hello.txt", FileMode.Open );
        }
    }

On the Silverlight client side when I add the WCF service reference I add the GetAStream call as shown below.

public partial class MainPage : UserControl
    {
        public MainPage( )
        {
            InitializeComponent();

            ServiceReference1.Service1Client sc = new ServiceReference1.Service1Client();
            sc.GetAStreamCompleted +=new EventHandler.ServiceReference1.GetAStreamCompletedEventArgs(sc_GetAStreamCompleted);
        }

        public void sc_GetAStreamCompleted (object sender, ServiceReference1.GetAStreamCompletedEventArgs e)
        {

           Byte[] bytes = e.Result;
// I was hoping the result would be something like Stream xyz = e.Result ???
}