Ok, I found how to do a workaround. It also applies to the question: how to dispose an object in WPF. It´s weird all posts about dispose objects in WPF talk about GC and that you can´t dispose it yourself. Yes, GC dispose objects automatically, but when he wants. But maybe you want to dispose inmediately, or you have an object that needs previous operations before dispose. In my case, Kinect needs to be stopped before dispose (you can dispose without stopping, but kinect ir sensor is still working). And GC is not solution because I need to stop it before dispose.
So, the solution:
public partial class MyClass : Page
{
private KinectSensor sensor;
public MyClass()
{
InitializeComponent();
this.Loaded += (s, e) => { NavigationService.Navigating += NavigationService_Navigating; };
// What you want to add to the constructor
// I want to start Kinect
sensor = KinectSensor.KinectSensors.FirstOrDefault(k => k.Status == KinectStatus.Connected);
sensor.Start();
}
public void NavigationService_Navigating(object sender, NavigatingCancelEventArgs e)
{
if (e.NavigationMode == NavigationMode.Back)
{
// What you want to do.
// I want to stop and dispose Kinect
if (sensor != null)
{
sensor.Stop();
sensor.Dispose();
}
}
}
}