private void BtDelCustomer_Click(object sender, EventArgs e)
{
//FormDisplayCus f = new FormDisplayCus("delCustomer");
FormDisplayCus f = new FormDisplayCus("maintenance");
f.Show();
}
private void TSMI_CustomerInfo_Click(object sender, EventArgs e)
{
FormDisplayCus f = new FormDisplayCus();
f.Show();
}