private void btnClose_Click(object sender, RoutedEventArgs e) { DialogConfirm closeDialog = new DialogConfirm("Travox Sentinel", "You want to turn off the system?", "Not, now.", "Shutdown."); closeDialog.HandlerButton1 = (object s2, RoutedEventArgs e2) => { closeDialog.Hide(); }; closeDialog.HandlerButton2 = (object s2, RoutedEventArgs e2) => { App.CrawlerRunning = false; closeDialog.Hide(); ContextHide(); }; closeDialog.ShowDialog(); }