private void VerifierRemboursementEnCours(CsDemande demandedevis)
 {
     try
     {
         Galatee.Silverlight.ServiceAccueil.AcceuilServiceClient client = new Galatee.Silverlight.ServiceAccueil.AcceuilServiceClient(Utility.Protocole(), Utility.EndPoint("Accueil"));
         client.VerifierRemboursementEnCoursCompleted += (ss, b) =>
         {
             if (b.Cancelled || b.Error != null)
             {
                 string error = b.Error.Message;
                 Message.ShowError(error, Silverlight.Resources.Devis.Languages.txtDevis);
                 return;
             }
             if (b.Result)
             {
                 Message.ShowInformation("Ce client a déjà un remboursement en cours", "Remboursement ASC");
                 this.DialogResult = false;
             }
             else
             {
                 ValiderInitialisation(null, true);
                 this.DialogResult = true;
             }
         };
         client.VerifierRemboursementEnCoursAsync(demandedevis);
     }
     catch (Exception ex)
     {
         Message.ShowError("Erreur lors de la vérification du client ", "Remboursement ASC");
     }
 }