private void ChargerAppreciation()
        {
            try
            {
                Galatee.Silverlight.ServiceAccueil.AcceuilServiceClient client = new Galatee.Silverlight.ServiceAccueil.AcceuilServiceClient(Utility.ProtocoleFacturation(), Utility.EndPoint("Accueil"));
                client.SelectAllValidationCompleted += (ssender, args) =>
                {
                    if (args.Cancelled || args.Error != null)
                    {
                        string error = args.Error.Message;
                        Message.ShowError(error, "");
                        return;
                    }
                    if (args.Result == null)
                    {
                        //Message.ShowError(Languages.msgErreurChargementDonnees, Languages.Parametrage);
                        Message.ShowError(Galatee.Silverlight.Resources.Devis.Languages.msgErreurChargementDonnees, "");
                        return;
                    }
                    if (args.Result != null)
                    {
                        Cbo_Apreciation.ItemsSource       = null;
                        Cbo_Apreciation.DisplayMemberPath = "Libelle";
                        Cbo_Apreciation.SelectedValuePath = "PK_ID";
                        Cbo_Apreciation.ItemsSource       = args.Result;

                        ChargeDonneDemande(this.demande);
                    }
                };
                client.SelectAllValidationAsync();
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }