public IHttpActionResult CreateRequisitionDetails(RequisitionDetailsModel reqdm)
        {
            string error = "";
            List <RequisitionDetailsModel> reqden = RequisitionDetailsRepo.CreateRequisitionDetails(reqdm, out error);

            if (error != "" || reqden == null)
            {
                return(Content(HttpStatusCode.BadRequest, error));
            }
            return(Ok(reqden));
        }