adding webservice with authorization in linkedIn. In silverlight (getting verifier)

Step 1:
we need to create a web service with the fuction:

In OauthlinkedIn.cs

public string AuthorizationLinkGet()
        {
//here you need to change your callback url.
            string oauth_callback="http://localhost/DataAccess.asmx";
            string ret = null;          
            string response = oAuthWebRequest(Method.POST, REQUEST_TOKEN, String.Empty,oauth_callback);
            if (response.Length > 0)            {
                //response contains token and token secret.  We only need the token.
                //oauth_token=36d1871d-5315-499f-a256-7231fdb6a1e0&oauth_token_secret=34a6cb8e-4279-4a0b-b840-085234678ab4&oauth_callback_confirmed=true
                NameValueCollection qs = HttpUtility.ParseQueryString(response);               
                if (qs["oauth_token"] != null)
                {
                    this.Token = qs["oauth_token"];
                    this.TokenSecret = qs["oauth_token_secret"];
                 
                    ret = AUTHORIZE + "?oauth_token=" + this.Token;                 

                }
            }


In default.asmx.cs (In webservice)



public string CreateAuthorization()
        {        
            string auth_link = _oauth.AuthorizationLinkGet();                     
            string auth_token = _oauth.Token;
            string auth_tokensecret = _oauth.TokenSecret;
            //string auth_verify = _oauth.AccessTokenGet(auth_token);
            string auth_verifier = _oauth.Verifier;             
            return auth_token;
        }
we can call this function in silverlight.


public partial class MainPage : UserControl
    {
        public const string AUTHORIZE = "https://api.linkedin.com/uas/oauth/authorize";
        public string oauth_callback ="http://localhost/DataAccess.asmx";
        public MainPage()
        {
            InitializeComponent();
            Service1SoapClient proxy = new Service1SoapClient();
            proxy.CreateAuthorizationCompleted+=new EventHandler<CreateAuthorizationCompletedEventArgs>(proxy_createauthorizationcompleted);
           proxy.CreateAuthorizationAsync();
        }

        private void proxy_createauthorizationcompleted(object sender, CreateAuthorizationCompletedEventArgs e)
        {
            try
            {               
               string  ret = AUTHORIZE + "?oauth_token=" + e.Result.ToString();
               System.Windows.Browser.HtmlPage.Window.Navigate(new Uri(ret));
               //NavigationService.Equals(ret, oauth_callback);               
              //  HttpContext.Current.Response.Redirect(ret);
                textBox1.Text = "Oauth_token :  " + e.Result.ToString();
            }
            catch
            {
                textBox1.Text = e.Result.ToString();
            }
        }
    }

result:

you  will redirect to linked in page, if you click on the continue, it will call back to localhost.

if you check in fiddler. you will get the verifier also.