public void FilterByMarketingPreferenceOK()
{
clsCustomerCollection AllCustomers = new clsCustomerCollection();
clsCustomerCollection FilteredCustomers = new clsCustomerCollection();
FilteredCustomers.FilterByMarketingPreference(false);
Assert.AreEqual(1, FilteredCustomers.Count);
}
protected void btnMarketingSearch_Click(object sender, EventArgs e)
{
clsCustomerCollection Customers = new clsCustomerCollection();
Customers.FilterByMarketingPreference(Convert.ToBoolean(lstPreference.Text));
lstCustomers.DataSource = Customers.CustomerList;
lstCustomers.DataValueField = "Customer_id";
lstCustomers.DataTextField = "Name";
lstCustomers.DataBind();
}