HttpListener & Silverlight object = Error Code: 2104

2 replies. Latest Post by CARNIBAL06 on September 17, 2009.

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CARNIBAL06

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HttpListener & Silverlight object = Error Code: 2104

09-16-2009 6:01 AM |

Hi all,

I'm trying to developp a mini web server with HttpListener object.

When a request is received, my class send an html page with only source without xap.

In my browser, i have a blank page with a Silverlight Error : Code 2104, Could'nt download Silverlight Application.

This is my class code :

static HttpListener listener;
        static void Main(string[] args)
        {
            listener = new HttpListener();
            listener.Prefixes.Add("http://+:1337/vwm/");
            listener.Start();

            if (!HttpListener.IsSupported)
            {
                Console.WriteLine("Windows XP SP2 or Server 2003 is required to use the HttpListener class.");
                return;
            }

            while (listener.IsListening)
            {
                IAsyncResult result = listener.BeginGetContext(new AsyncCallback(ListenerCallback), listener);

                Console.WriteLine("Waiting for request to be processed asyncronously.");
                result.AsyncWaitHandle.WaitOne();
                Console.WriteLine("Request processed asyncronously.");
            }
            listener.Close();
        }

        public static void ListenerCallback(IAsyncResult result)
        {
            HttpListener listener = (HttpListener)result.AsyncState;
            // Call EndGetContext to complete the asynchronous operation.
            HttpListenerContext context = listener.EndGetContext(result);
            HttpListenerRequest request = context.Request;
            // Obtain a response object.
            HttpListenerResponse response = context.Response;
            response.ContentType = "text/html";
            response.KeepAlive = true;

            // Construct a response.
            using (FileStream fs = new FileStream(@"index.htm", FileMode.Open))
            {
                using (StreamReader reader = new StreamReader(fs))
                {
                    string responseString = reader.ReadToEnd();

                    byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
                    // Get a response stream and write the response to it.
                    response.ContentLength64 = buffer.Length;
                    System.IO.Stream output = response.OutputStream;
                    output.Write(buffer, 0, buffer.Length);
                    // You must close the output stream.
                    output.Close();
                }
            }
        }

And my test html page :

<html>

...
<body>
    <form id="form1" runat="server" style="height:100%">

    <div id="silverlightControlHost">
        <object data="data:application/x-silverlight-2," type="application/x-silverlight-2" width="100%" height="100%">
        <param name="source" value="/SilverHelloWorld.xap"/>
        <param name="onError" value="onSilverlightError" />
        <param name="background" value="white" />
        <param name="minRuntimeVersion" value="3.0.40624.0" />
        <param name="autoUpgrade" value="true" />
        <a href="http://go.microsoft.com/fwlink/?LinkID=149156&v=3.0.40624.0" style="text-decoration:none">
             <img src="http://go.microsoft.com/fwlink/?LinkId=108181" alt="Get Microsoft Silverlight" style="border-style:none"/>

        </a>
        </object><iframe id="_sl_historyFrame" style="visibility:hidden;height:0px;width:0px;border:0px"></iframe></div>
    </form>
</body>
</html>