private void DisplayCart()
{
var list = cart.GetCart();
if (list.Count == 0)
{
btnCheckout.Enabled = false;
rptrCart.DataSource = "";
rptrCart.DataBind();
pnlCheckout.Visible = false;
}
else
{
rptrCart.DataSource = list;
rptrCart.DataBind();
CalculateFinalTotal();
}
}