void ChargerIndexCampagne(int Regroupement)
 {
     Galatee.Silverlight.ServiceRecouvrement.RecouvrementServiceClient service = new Galatee.Silverlight.ServiceRecouvrement.RecouvrementServiceClient(Utility.ProtocoleFacturation(), Utility.EndPoint("Recouvrement"));
     service.ChargerClientPourSaisiIndexCompleted += (s, args) =>
     {
         if (args != null && args.Cancelled)
         {
             return;
         }
         List <CsDetailCampagne> lstCampagne = args.Result;
         lvwResultat.ItemsSource = null;
         lvwResultat.ItemsSource = lstCampagne;
         return;
     };
     service.ChargerClientPourSaisiIndexAsync(Regroupement);
 }