private void ButtonGrabar_Click(object sender, RoutedEventArgs e) { ClassEmpleado Logica = new ClassEmpleado(); string resp = Logica.NuevoEmpleado(TextNombre.Text, TextApellido.Text, TextCorreo.Text, TextTel1.Text, TextTel2.Text); if (resp.ToUpper().Contains("ERROR")) { MessageBox.Show(resp, "Error al grabar", MessageBoxButton.OK, MessageBoxImage.Error); } else { MessageBox.Show(resp); buttonAgregar.Visibility = Visibility.Visible; buttonGrabar.Visibility = Visibility.Hidden; buttonListar.IsEnabled = true; buttonCancelar.IsEnabled = false; } }