public HttpResponseMessage Get([FromUri] preg_image data) { try { IEnumerable <preg_image> result; if (!data.DeepEquals(new preg_image())) { result = dao.GetItemsByParams(data); } else { result = dao.GetListItem(); } if (result.Count() > 0) { return(Request.CreateResponse(HttpStatusCode.OK, result)); } else { HttpError err = new HttpError(SysConst.DATA_NOT_FOUND); return(Request.CreateErrorResponse(HttpStatusCode.NotFound, err)); } } catch (Exception ex) { HttpError err = new HttpError(ex.Message); return(Request.CreateErrorResponse(HttpStatusCode.NotFound, err)); } }