public override string ToString()
{
String fee = Math.Round(Fee) + "";
if (fee.Length > 9)
{
fee = fee.Substring(fee.Length - 9, 9);
}
return((ProductCode == null ? "".PadLeft(5, ' ') : ProductCode.PadLeft(5, '0'))
+ (Note == null ? "" : Note).PadRight(50, ' ')
+ "FD" + fee.Length + fee);
}