public decimal CalculateLocalCourierFee()
{
using (FreeMarketEntities db = new FreeMarketEntities())
{
decimal totalWeight = GetTotalWeightOfOrder();
if (totalWeight == 0)
{
return(0);
}
else
{
return((decimal)db.CalculateLocalDeliveryFee(totalWeight, Order.OrderNumber).FirstOrDefault());
}
}
}