ApplicationSettings.AddSettingsScenario.OnNavigatedFrom C# (CSharp) Method

        protected override void OnNavigatedFrom(NavigationEventArgs e)
        {
            base.OnNavigatedFrom(e);

            // Added to make sure the event handler for CommandsRequested in cleaned up before other scenarios
            if (this.isEventRegistered)
            {
                SettingsPane.GetForCurrentView().CommandsRequested -= onCommandsRequested;
                this.isEventRegistered = false;
            }
        }