public HttpResponseMessage ChiTietSP(int id) { try { SanPham entity = db.SanPhams.SingleOrDefault(x => x.MaSP == id); if (entity == null) { return(Request.CreateErrorResponse(HttpStatusCode.NotFound, "Not Fuond")); } else { var dao = new MappingData(); var sanpham = dao.MappingSanPham(entity); return(Request.CreateResponse(HttpStatusCode.OK, sanpham)); } } catch (Exception ex) { return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, ex)); } }