Json 来自 MVC 控制器的变量总是返回 "undefined"

Json variable from MVC Controller always returning "undefined"

我正在开发一个点网核心 MVC 应用程序。我的控制器具有以下功能:

[HttpPost]
        public JsonResult Delete(string chkId)
        {
            if (chkId == "" || chkId == null)
                StatusCode(StatusCodes.Status500InternalServerError);

            List<string> stringList = new List<string>();
            try
            {
                stringList = chkId.ToString().Split(',').ToList();
                for (var i = 0; i < stringList.Count(); i++)
                {
                    StringDA.Delete(Convert.ToInt64(stringList[i]), GetString());
                }
                string result = "Success";
                return Json(result, new Newtonsoft.Json.JsonSerializerSettings());
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }

现在我的视图正在尝试使用以下 jquery.

访问函数
$('#btnDelete').on('click', function () {
    // Code.........
            var msg = "Are you sure you want to delete?";
            var check = confirm(msg);
            //alert(chkVal);
            if (check == true) {
                var join_selected_values = chkVal.join(",");
                $.ajax({
                    url: "/General/Delete",
                    type: "POST",
                    cache: false,
                    dataType: 'json',
                    data: 'chkId=' + join_selected_values,
                    success: function (response) {
                        //alert(response.result);
                        if (response.result == "Success") {
                            alert("Record(s) deleted");
                            ..........
                        }
                        else {
                            alert("Error in Appication");
                        }
                    }
                });
            }
        }
    });

但是当我测试我的应用程序时 response.resrult 总是抛出“未定义”,即使控制器功能正常。我不明白为什么 response.resrult 在我明确声明为“成功”时未定义?

你应该定义结果变量

return new JsonResult( new { result="Sucess" } );