using SilverlightVeritabani.ServiceReference1;

Service1Client webservis = new Service1Client();

public MainPage()

{

    InitializeComponent();

}

private void button1_Click(object sender, RoutedEventArgs e)

{

    webservis.OgrencileriGetirAsync();

    webservis.OgrencileriGetirCompleted += new EventHandler<OgrencileriGetirCompletedEventArgs>(webservis_OgrencileriGetirCompleted);

}

void webservis_OgrencileriGetirCompleted(object sender, OgrencileriGetirCompletedEventArgs e)

{

    dataGrid1.ItemsSource = e.Result;

}

<sdk:DataGrid AutoGenerateColumns="False" Height="259" HorizontalAlignment="Left"

           Margin="24,12,0,0" Name="dataGrid1" VerticalAlignment="Top" Width="343">

  <sdk:DataGrid.Columns>

      <sdk:DataGridTextColumn Header="No" Width="100" Binding="{Binding no}" />

      <sdk:DataGridTextColumn Header="Adı" Width="120" Binding="{Binding adi}" />

      <sdk:DataGridTextColumn Header="Soyadı" Width="120" Binding="{Binding soyadi}"/>

  </sdk:DataGrid.Columns>

</sdk:DataGrid>

[ServiceContract]

public interface IService1

{

    [OperationContract]

    List<Ogrenciler> OgrencileriGetir();

}

public class Service1 : IService1

{

    DataClasses1DataContext veri = new DataClasses1DataContext();

    public List<Ogrenciler> OgrencileriGetir()

    {

        var ogrencilistesi = from ogrenci in veri.Ogrencilers

                             orderby ogrenci.no

                             select ogrenci;

        return ogrencilistesi.ToList<Ogrenciler>();

    }

 }