private void add_line(EDIXmlMixedContainer lines, CustomerOrderLine l)
{
lines.AddSegment(_segmentFactory.GetPOLine(l.LineNumber.ToString(), l.RequestedQuantity,
l.RequestedPrice, l.CustomerPartNumber, "", l.ItemDescription));
lines.AddSegment(_segmentFactory.GetAckLine("IA", l.RequestedQuantity,
get_delivery_date().ToString("yyyyMMdd"),
l.CustomerPartNumber, "", l.ItemDescription));
}