When should I save application data in WinRT?

Question

In WinRT the Suspended event is supposed to be used to save application data. It is even written in the templates that come with Visual Studio. However when the user closes the app the Suspended event does not fire until 10 seconds later. If the user starts the application in the meantime the data is lost. How should I proceed in this case? I tried other events like page's NavigatedFrom but none of them fired.

Answer 1

You could try this:

        Window.Current.Activated += (sender, args) =>
        {
            if (args.WindowActivationState ==
                CoreWindowActivationState.Deactivated)
                ; //save data
        };