public void FilterByONumber()
        {
            clsOrderlineCollection AllOrderlines      = new clsOrderlineCollection();
            clsOrderlineCollection FilteredOrderlines = new clsOrderlineCollection();

            FilteredOrderlines.FilterByONum(1);
            Assert.AreEqual(AllOrderlines.Count, FilteredOrderlines.Count);
        }
        public void FilterByONumberTestDataFound()
        {
            clsOrderlineCollection FilteredOLines = new clsOrderlineCollection();
            Boolean OK = true;

            FilteredOLines.FilterByONum(10);
            if (FilteredOLines.Count == 2)
            {
                if (FilteredOLines.OrderlineList[0].OLineNumber != 8)
                {
                    OK = false;
                }
                if (FilteredOLines.OrderlineList[1].OLineNumber != 9)
                {
                    OK = false;
                }
            }
            else
            {
                OK = false;
            }
            Assert.IsTrue(OK);
        }