Calling Webservices in WP7

Question

I am working on Windows Phone 7 platform and want to call the webservices for login, and other details.

But i am not getting the way to call the webserives. Can you please help me about how to call webservice in WP7.

Currently im using this

public string GetXmlResponse(string Url)
{            
    try
    {
        wr = WebRequest.Create(Url);
        hwr = (HttpWebRequest)wr;
        hwr.Method = "GET";
        hwr.ContentType = "text/xml";
        //hwr.Timeout = 2147483647;
        //hwr.ContentLength = URL.Length;
        IAsyncResult ar = null;
        ar = (IAsyncResult)hwr.BeginGetResponse(AsyncResponse, hwr);
    }
    catch
    {
        resp = null;
    }
    return resp;
}
public void AsyncResponse(IAsyncResult ar)
{            
    try
    {
        WebResponse ws = hwr.EndGetResponse(ar);
        StreamReader streader = new StreamReader(ws.GetResponseStream());
        resp = streader.ReadToEnd();
    }
    catch
    {
        resp = null;
    }            
}

But as it makes AsyncResponse, it returns me the null value, while calling the function GetXmlResponse.

Please help me for any thing.

Thanks

Answer 1

have you checked out the XNA site? http://create.msdn.com/en-US/ There is a link that goes to channel 9's Windows phone 7 development tutorials. One of the lessons that is on the second day I believe has a really good video of how to use web services.

Answer 2

By creating the delegate i have handled this.

In AsyncResponse i fire the delegate and on my form that fires the event for me.

This is how i am able to manage this.

i refered this link to create the delegate.

Thanks BHAVIK GOYAL

Answer 3

Try using HttpWebRequest.Create

wr = HttpWebRequest.Create(Url);

Also if the 'Method' is "GET", ContentType is not required.