public DataTable Getvisittnxidbyusingrepliedsms(SMSView smsview)
        {
            DataTable dt = new DataTable();
            SMSDAO smsdao=new SMSDAO();
            try
            {
                dt = smsdao.retrievevisittnxidbyusingrepliedsms(smsview);
                return dt;
            }
            catch (Exception)
            {

                throw;
            }
            finally
            {
                smsdao = null;
            }
        }