public IHttpActionResult OrderHistory(int deptid)
        {
            string error = "";
            List <OrderHistoryModel> ord = RequisitionDetailsRepo.GerOrderHistory(deptid, out error);

            if (error != "" || ord == null)
            {
                if (error == ConError.Status.NOTFOUND)
                {
                    return(Content(HttpStatusCode.NotFound, "Order Not Found"));
                }
                return(Content(HttpStatusCode.BadRequest, error));
            }
            return(Ok(ord));
        }