AllJoynSimulatorApp.MainPage.Current_Suspending C# (CSharp) Метод

        private async void Current_Suspending(object sender, Windows.ApplicationModel.SuspendingEventArgs e)
        {
            if (this.DataContext != null)
            {
                this.DataContext = null;
                SaveDevices();
                var d = e.SuspendingOperation.GetDeferral();
                await AllJoynDsbServiceManager.Current.ShutdownAsync();
                d.Complete();
            }
        }