private void CalculateTotal(DataTable dt)
{
int taxType = 0;
decimal total, subTotal, tax, deliveryFee, totalAfterDiscount;
total = subTotal = tax = deliveryFee = totalAfterDiscount = 0;
ShoppingCartVariables shoppingCartVariables;
if (Application["ShoppingCartVariables"] == null)
{
shoppingCartVariables = objBAL.GetShoppingCartVariables();
Application["ShoppingCartVariables"] = shoppingCartVariables;
}
else
{
shoppingCartVariables = (ShoppingCartVariables)Application["ShoppingCartVariables"];
}
deliveryFee = shoppingCartVariables.DeliveryFee;
if (dt.Rows.Count > 0)
{
foreach (DataRow row in dt.Rows)
{
decimal itemAmt = Convert.ToDecimal(row["Qty"]) * Convert.ToDecimal(row["Price"]);
subTotal += itemAmt;
taxType = Convert.ToInt16(row["TaxType"]);
if (taxType == 1)
{
tax += Math.Round((itemAmt * shoppingCartVariables.FoodTax / 100), 2);
}
else
{
tax += Math.Round((itemAmt * shoppingCartVariables.NonFoodTax / 100), 2);
}
}
total += subTotal + tax;
if (subTotal < shoppingCartVariables.DeliveryFeeCutOff)
{
total += deliveryFee;
}
if (Session["Coupon"] != null)
{
totalAfterDiscount = total;
decimal couponAmt = ((Coupon)Session["Coupon"]).Amount;
totalAfterDiscount -= couponAmt;
if (totalAfterDiscount < 0)
{
totalAfterDiscount = 0;
}
lblTotValueAfterDiscount.Text = Convert.ToString(totalAfterDiscount);
ShowHideDiscount(true);
}
else
{
ShowHideDiscount(false);
}
lblDeliveryFeeTot.Text = deliveryFee.ToString();
lblTaxVal.Text = tax.ToString();
lblTotVal.Text = Math.Round(total, 2).ToString();
lblSubTotVal.Text = subTotal.ToString();
}
}