public ServiceResponseData DeleteBill()
        {
            try
            {
                string  busiType = requestData.GetData <string>(0);
                int     billID   = requestData.GetData <int>(1);
                IMwBill iProcess = NewObject <MwBillFactory>().GetBillProcess(busiType);
                iProcess.DeleteBill(billID);
                responseData.AddData(true);
            }
            catch (Exception error)
            {
                responseData.AddData(false);
                responseData.AddData(error.Message);
            }

            return(responseData);
        }