public void ReportByCarMake()
{
clsCarsCollection AllCars = new clsCarsCollection();
clsCarsCollection FilteredCarMake = new clsCarsCollection();
FilteredCarMake.ReportByCarMake("");
Assert.AreEqual(AllCars.Count, FilteredCarMake.Count);
}
protected void btnApplyCarMake_Click(object sender, EventArgs e)
{
string Filter = txtFilterCarMake.Text;
clsCarsCollection Cars = new clsCarsCollection();
Cars.ReportByCarMake(Filter);
lstCarList.Items.Clear();
lstCarList.DataSource = Cars.CarList;
lstCarList.DataValueField = "CarNo";
lstCarList.DataTextField = "CarMake";
lstCarList.DataBind();
}