private async void BtnGo_Click(object sender, System.Windows.RoutedEventArgs e) { if (!string.IsNullOrWhiteSpace(Pin.Text)) { try { _voter = await ElectionConfigurationService.LoginVoter(new Voter { VoterCode = Pin.Text }); ConfirmVoterAsync(); } catch (Exception exception) { MessageBox.Show(exception.Message, "Election Login Error"); throw; } } }