The best of both worlds: sbRedirect.AppendFormat("~/Maint/surcharge.aspx?StartDate={0}&EndDate=(1)&Market={2}&GroupName={3}&GroupCode={4}&Abbreviation={5}", cpStartDate.SelectedDate.ToShortDateString(), cpEndDate.SelectedDate.ToShortDateString(), ddlMarkets.SelectedIndex, cbCustomer.Checked.ToString(), cbGroupCode.Checked.ToString(), cbAbbreviation.Checked.ToString());