private void ButtonBackToMenu(object sender, RoutedEventArgs e)
{
if (lightSensor != null)
{
lightSensor.ReadingChanged -= LightSensorReadingChanged;
}
PeriodicTimer.Cancel2();
stackpanel4.Visibility = Visibility.Collapsed;
stackpanel2.Visibility = Visibility.Visible;
}
/// <summary>
/// Unregister from App events and DeviceWatcher events because this page will be unloaded.
/// </summary>
protected override void OnNavigatedFrom(NavigationEventArgs eventArgs)
{
if (lightSensor != null)
{
lightSensor.ReadingChanged -= LightSensorReadingChanged;
}
PeriodicTimer.Cancel2();
DisconnectFromDeviceClick(null, null);
StopDeviceWatchers();
StopHandlingAppEvents();
// We no longer care about the device being connected
EventHandlerForDevice.Current.OnDeviceConnected = null;
EventHandlerForDevice.Current.OnDeviceClose = null;
IsNavigatedAway = true;
CancelAllIoTasks();
}
