Silverlight grid in mscrm

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Browser;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.CSharp;
using System.Threading;
using SilverlightApplication2.ServiceReference1;
using System.Data.Services.Client;
namespace SilverlightApplication2
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
            _syncContext = SynchronizationContext.Current;
            InitializeCRMServiceContext();
            LoadForecast();

        }
        private SynchronizationContext _syncContext;
        private CRM2013VanillaContext _context;
        private String _serverURL;

        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            InitializeCRMServiceContext();
            LoadForecast();

        }

        private void InitializeCRMServiceContext()
        {
            // Get the ServerUrl (ServerUrl is formatted differently OnPremise than
            // OnLine).
            _serverURL = ServerUtility.GetServerUrl();

            if (!String.IsNullOrEmpty(_serverURL))
            {

                // Setup context.
                _context = new CRM2013VanillaContext(
                    new Uri(String.Format("{0}/xrmservices/2011/organizationdata.svc/",
                        _serverURL), UriKind.Absolute));

                //This is important because if the entity has new
                //attributes added the code will fail.
                _context.IgnoreMissingProperties = true;
                _context.MergeOption = MergeOption.PreserveChanges;
                //Set defaults;

            }
            else
            {
                //lblError.Content = "unable to connect to crm server.";
            }
        }

        private void LoadForecast()
        {

            //Get Engagement Record ID
            string recordID = ((string)HtmlPage.Window.Eval("Xrm.Page.data.entity.getId()")).Replace("{", "").Replace("}", "");
            //
            MessageBox.Show(recordID);
         
            DataServiceQuery<new_test> query = (DataServiceQuery<new_test>)_context.new_testSet.AddQueryOption("$select", "new_name,new_Age");

            // DataServiceQuery<new_test> query = (DataServiceQuery<new_test>)_context.new_testSet.AddQueryOption("$select", "new_name eq 'ddddddd'");
            //DataServiceQuery<new_forecast> query = (DataServiceQuery<new_forecast>)_context.new_forecastSet;

            /// DataServiceQuery<new_test> query = (DataServiceQuery<new_test>)_context.new_testSet.Where(a => a.new_testId == new Guid(recordID)

            //).Select(a=>new{rt=a.new_Age,tf=a.new_name});

            // DataServiceQuery<new_test> query = (DataServiceQuery<new_test>)_context.new_testSet.AddQueryOption("$select", "new_name,new_name");

            //           DataServiceQuery<new_test> query = (DataServiceQuery<new_test>)
            //_context.new_testSet.AddQueryOption("$filter", "new_testId eq guid'" + recordID + "'");
            //          // queryContact.BeginExecute(RetrieveContactHandler, queryContact);


           query.BeginExecute(this.LoadForecastCallback, query);
        }

        #region Callbacks
        private void LoadForecastCallback(IAsyncResult asyncResult)
        {
            // DataServiceQuery<new_test> query1 = (DataServiceQuery<new_test>)_context.new_testSet.AddQueryOption("$select", "new_name,new_Age").Where<new_test>(a => (a.new_name == "ddddddd"));
            //Label.Content = "Message: successful call back";
            DataServiceQuery<new_test> query = asyncResult.AsyncState as DataServiceQuery<new_test>;
            List<new_test> r = new DataServiceCollection<new_test>(query.EndExecute(asyncResult)).ToList();

            // MessageBox.Show(r.Count.ToString());



            //var list = (query.EndExecute(asyncResult)).ToList();
            demo.ItemsSource = (from e in r select new { name = e.new_name, age = e.new_Age }).ToList();

            //r.Select(p=>p.new_name,new_ag);
            // silvergrid.DataContext = list;


        }
        private void SaveChangesCallback(IAsyncResult asyncResult)
        {
            _context = asyncResult.AsyncState as CRM2013VanillaContext;
            var response = _context.EndSaveChanges(asyncResult);
        }
        #endregion

        private void demo_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {

        }




    }
}

/////////////////////////////////////////

using System;

using System.Windows.Browser;

    public static class ServerUtility

    {

        /// <summary>

        /// Returns the ServerUrl from Microsoft Dynamics CRM

        /// </summary>

        /// <returns>String representing the ServerUrl or String.Empty if not found.</returns>

        public static String GetServerUrl()

        {

            String serverUrl = String.Empty;

            //Try to get the ServerUrl from the Xrm.Page object

            serverUrl = GetServerUrlFromContext();            

            return serverUrl;

        }

        /// <summary>

        /// Attempts to retrieve the ServerUrl from the Xrm.Page object

        /// </summary>

        /// <returns></returns>

        private static String GetServerUrlFromContext()

        {

            try

            {

                // Silverlight hosted within HTML, this will get the server url

                ScriptObject parent = (ScriptObject)HtmlPage.Window.GetProperty("parent");

                ScriptObject xrm = (ScriptObject)parent.GetProperty("Xrm");

                ScriptObject page = (ScriptObject)xrm.GetProperty("Page");

                ScriptObject pageContext = (ScriptObject)page.GetProperty("context");

                String serverUrl = (String)pageContext.Invoke("getServerUrl");

                //The trailing forward slash character from CRM Online needs to be removed.

                if (serverUrl.EndsWith("/"))

                {

                    serverUrl = serverUrl.Substring(0, serverUrl.Length - 1);

                }

                return serverUrl;

            }

            catch

            {

                return String.Empty;

            }

        }

    }

//</snippetServerUtility>