protected void btnDiscount_Click(object sender, EventArgs e)
{
if (BusinessLogic.CheckPromoCode(txtDiscount.Text))
{
pnlPromoCode.Visible = true;
lblPromoCode.Text = "Discount Code Applied!";
Session["promoCode"] = txtDiscount.Text;
}
else
{
pnlPromoCode.Visible = true;
lblPromoCode.Text = "Invalid Code!";
}
}
