private void DeleteBillingCycle()
        {
            try
            {
                int result = StorehouseHelper.DeleteBillingCycle(ecPanelRequest.BillingCycleId);

                if (result < 0)
                {
                    ShowResultMessage(result);
                    return;
                }
            }
            catch (Exception ex)
            {
                ShowErrorMessage("BILLING_CYCLE_DELETE", ex);
            }

            RedirectToBrowsePage();
        }