private void btnAdd_Click(object sender, EventArgs e)
{
ConfirmPassword f = new ConfirmPassword(2, this);
f.ShowDialog();
LoadTableDList();
}
private void txtDiscount_Click(object sender, EventArgs e)
{
ConfirmPassword f = new ConfirmPassword(1, this);
f.ShowDialog();
this.Show();
txtDiscount.Text = "" + discount;
float total = BillDAO.Instance.GetTotalPriceByIdBill(BillDAO.Instance.GetUncheckedBillIdByTableId(idTable));
txtCashout.Text = (total * (1 - discount / 100)).ToString("c");
}
