private void save_btn_Click(object sender, RoutedEventArgs e) { Security.Entities.Application app = applications.ElementAt(application_combobox.SelectedIndex); app.IsActive = isActive_combobox.SelectedIndex == 0 ? true : false; app.LastModifiedBy = user.User_ID; app.LastModifiedOn = DateTime.Now; if (ApplicationDAO.updateApplication(app)) { MessageBox.Show("Application updated", "SUCCESS"); } else { } }