Save data when Windows 8 Store app closes

Question

I have written a windows 8 store app (XAML/C#) which I have running on a Microsoft surface. The app is basically a data entry application which doesn't have any save buttons. Saving is performed automatically when jumping between pages or when the application is suspended.

However one senario I can't seem to catch is when the user closes the application (when the users swipes from the top to bottom of the screen).

So at the moment I subscribe to App.Current.Suspending and call save here:

App.Current.Suspending += Current_Suspending;                  

void Current_Suspending(object sender, Windows.ApplicationModel.SuspendingEventArgs e)
{
    Save();
}

I also override the SaveState method and call Save here:

protected override void SaveState(Dictionary<string, object> pageState)
{
    Save();
    base.SaveState(pageState);
}

But niether of these methods are called when the application is closed.

Does anybody know of an event that gets fired when the app closes?

Thanks

Answer 1

http://msdn.microsoft.com/en-US/library/windows/apps/xaml/hh465115.aspx

At the bottom it contains the following note:

A note about debugging using Visual Studio: Visual Studio prevents Windows from suspending an app that is attached to the debugger. This is to allow the user to view the Visual Studio debug UI while the app is running. When you're debugging an app, you can send it a suspend event using Visual Studio. Make sure the Debug Location toolbar is being shown, then click the Suspend icon.