private void RetournCampagneByRegcli(ServiceRecouvrement.CsRegCli Regroupement, string periode)
        {
            Galatee.Silverlight.ServiceRecouvrement.RecouvrementServiceClient service = new Galatee.Silverlight.ServiceRecouvrement.RecouvrementServiceClient(Utility.ProtocoleFacturation(), Utility.EndPoint("Recouvrement"));
            service.RetournCampagneByRegcliCompleted += (s, args) =>
            {
                if (args != null && args.Cancelled)
                {
                    return;
                }
                if (args.Result == null)
                {
                    return;
                }
                LstCampagneGc = args.Result;

                dg_campagne.ItemsSource = LstCampagneGc;
                return;
            };
            service.RetournCampagneByRegcliAsync(Regroupement, periode);
        }