private async void reset_btn_Click(object sender, RoutedEventArgs e) { DataStorage.INSTANCE.settingsData = new Ausgaben_Rechner.Classes.Data.SettingsData(); DataStorage.INSTANCE.userData = new Ausgaben_Rechner.Classes.Data.UserData(); DataStorage.INSTANCE.saveAllData(); await Utillities.showMessageBoxAsync("App got successfully reset!"); }