public FormulairePatientViewModel() { try { singleUser = Singleton.getInstance(); _nav = SimpleIoc.Default.GetInstance <INavigation>(); CreateCommands(); ListeNom = PatientData.GetListeNom(); ListePrenom = PatientData.GetListePrenom(); Messenger.Default.Register <Singleton>(this, "Singleton", OnConnected); Messenger.Default.Register <bool>(this, "ConnInsc", ConnInsc); Messenger.Default.Register <bool>(this, "ConnSupp", ConnSupp); } catch (Exception ex) { GestionErreur.GerrerErreur(ex); } }