BackgroundTaskFromForeground.MainPage.RegisterBackgroundTask C# (CSharp) Method

        private async void RegisterBackgroundTask()
        {
            try
            {
                if (!BackgroundTaskRegistration.AllTasks.Any(reg => reg.Value.Name == TileRegistrationName))
                {
                    // Configure task parameters
                    BackgroundTaskBuilder builder = new BackgroundTaskBuilder();
                    builder.TaskEntryPoint = typeof(TileUpdateTask).FullName;
                    builder.Name = TileRegistrationName;

                    // Remember to set an ApplicationTrigger so we can run it on demand later
                    this.backgroundTrigger = new ApplicationTrigger();
                    builder.SetTrigger(backgroundTrigger);
                    builder.Register();

                    MessageDialog infoDialog = new MessageDialog("Background task successfully registered.", "Info");
                    await infoDialog.ShowAsync();
                }
                else
                {
                    // Fetch registration details and trigger if already existing
                    var registration = BackgroundTaskRegistration.AllTasks.FirstOrDefault(reg => reg.Value.Name == TileRegistrationName).Value as BackgroundTaskRegistration;
                    this.backgroundTrigger = registration.Trigger as ApplicationTrigger;

                    MessageDialog infoDialog = new MessageDialog("Background task registration data successfully retrieved.", "Info");
                    await infoDialog.ShowAsync();
                }
            }
            catch (Exception ex)
            {
                MessageDialog errorDialog = new MessageDialog("There was an error while trying to register the background task.", "Error");
                errorDialog.ShowAsync();
            }
        }