private void CalculateSubtotalPrice()
{
OrderLines.ForEach(line => line.CalculatePrice());
var subtotal = OrderLines
.Aggregate(0.0, (i, line) => i + line.Price);
SubtotalPrice = Math.Round(subtotal, 2);
}
/// <summary>
/// Get the total of the order
/// </summary>
/// <returns>The total of the order</returns>
public decimal GetOrderTotal()
{
decimal total = 0M;
if (OrderLines != null //use OrderLines for lazy loading
&&
OrderLines.Any())
{
total = OrderLines.Aggregate(total, (t, l) => t += l.TotalLine);
}
return(total);
}