public HttpResponseMessage Post(FormDataCollection form) { var values = form.Get("values"); var lopHp = new LopHocPhan(); JsonConvert.PopulateObject(values, lopHp); if (_lopHocPhanService.Add(lopHp)) { return(Request.CreateResponse(HttpStatusCode.Created)); } return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, "Mã môn học đã tồn tại")); }