public static void showAs_Update(frmManageCustomer.MsgHandler msg, int id)
        {
            modRefreshData = msg;
            var f = new frmCustomerDataEntry(id);

            f.ShowDialog();
        }
        public static void showAs_View(frmManageCustomer.MsgHandler msg, int id)
        {
            modRefreshData = msg;
            var f = new frmCustomerDataEntry(id);

            f.btnSave.Visible = false;
            f.ShowDialog();
        }
        public static void showAs_Add(frmManageCustomer.MsgHandler msg)
        {
            modRefreshData = msg;
            var f        = new frmCustomerDataEntry();
            var customer = new Customer();

            f.CustomerSource.Add(customer);
            f.CustomerSource.MoveLast();
            f.ShowDialog();
        }