private void MetroWindow_Closed(object sender, System.EventArgs e)
        {
            Sentry.RemoveHandler(this.Dispatcher);

            Worker.Unload();
            App.Current.Shutdown();
        }
        private void Window_Closed(object sender, EventArgs e)
        {
            Sentry.RemoveHandler(this.Dispatcher);

            this.m_topMost.Close();
        }