private void DelExamStudent() { var obj = new { code = 0, msg = "" }; try { int id = Request.Form["id"].AsInt(); var bll = new BLL.examResultBLL(); Models.examResult examResult = new Models.examResult { id = id }; bll.Delete(examResult); } catch (Exception ex) { obj = new { code = 99, msg = ex.ToString() }; } ResponseJson(obj); }