private void UserInviteClick(object sender, System.Windows.RoutedEventArgs e)
        {
            var username = UserInvite.Text;

            string factoryString = (string)FactoryList.SelectedItem;
            int    factoryID     = getIdFromFactoryString(factoryString);

            ClientServerUtil csu     = ClientServerUtil.getInstance();
            String           message = csu.addMemberToMemberAccess(factoryID, username, factoryString);

            showPopUp(message);
            UserInvite.Clear();
        }