public HttpResponseMessage Put(service_types model)
        {
            try {
                BOService_types service = new BOService_types();
                service_types   serviceType;

                serviceType = service.UpdateService(model);
                return(Request.CreateResponse(HttpStatusCode.OK, serviceType));
            } catch (Exception e) {
                ErrorMessage message = new ErrorMessage("2.1", "Exception to update service type - " + e.GetBaseException().Message, e.ToString());
                return(Request.CreateResponse(HttpStatusCode.InternalServerError, message));
            }
        }