public GoodItem(GoodItem item)
{
//set units
_units = 0;
AddUnits(item.GetUnits());
//set unit price
SetUnitPrice(item.GetUnitPrice());
Id = item.Id;
_isImported = item.GetImportStatus();
_isTaxExempt = item.GetExemptStatus();
_discountRate = item.GetDiscountRate();
_goodItemType = item.GetItemType();
Details = item.Details;
}
