private void RetourneOrdre(ServiceAccueil.CsClient leClient)
 {
     try
     {
         string OrdreMax = string.Empty;
         Galatee.Silverlight.ServiceAccueil.AcceuilServiceClient service = new Galatee.Silverlight.ServiceAccueil.AcceuilServiceClient(Utility.ProtocoleFacturation(), Utility.EndPoint("Accueil"));
         service.RetourneOrdreMaxCompleted += (s, args) =>
         {
             if (args != null && args.Cancelled)
             {
                 return;
             }
             OrdreMax = args.Result;
             if (OrdreMax != null)
             {
                 leClient.ORDRE = OrdreMax;
                 ChargeDetailDEvis(leClient);
             }
         };
         service.RetourneOrdreMaxAsync(leClient.FK_IDCENTRE.Value, leClient.CENTRE, leClient.REFCLIENT, leClient.PRODUIT);
         service.CloseAsync();
     }
     catch (Exception ex)
     {
         throw ex;
     }
 }