protected void hlLoginFacebook_OnClick(object sender, EventArgs e)
        {
            var url = AuthenticationFacebook.UrlOauth();

            Session["tipoDado"] = rbTipoRetorno.SelectedValue.ToUpper();
            Response.Redirect(url);
        }
 protected void Page_Load(object sender, EventArgs e)
 {
     if (!IsPostBack)
     {
         if (Request.QueryString["code"] != null)
         {
             AuthenticationFacebook.Code = Request.QueryString["code"];
             if (Session["tipoDado"].ToString() == "Json".ToUpper())
             {
                 Session["dadosJson"] = AuthenticationFacebook.ReturnJson();
             }
             else if (Session["tipoDado"].ToString() == "Objeto".ToUpper())
             {
                 Session["dadosObject"] = AuthenticationFacebook.ReturnObject();
             }
             Response.Redirect("Default.aspx");
         }
     }
 }
        private void FacebookSignIn(object sender, EventArgs e)
        {
            AuthenticationFacebook facebook = new AuthenticationFacebook();

            facebook.OnLoginClicked();
        }