jquery ajax 传递数组到后台失败的问题

 var obj2 = {
                "name": "nihao",
                "list": ["x", "y", "z"],
                "ckee": "o",
                "m2": {
                    "name": "zzzzz",
                    "list": ["x1", "y1", "z1"],
                    "ckee": "o1"
                }
            }

            $.ajax({
                type: "POST",
                url: "/Home/SubmitForm",
                data: obj2,
                dataType: "text",
                async: false,
                traditional: true,
                success: function (data) {
                    var rows = data.rows;

                }
            });
            $.ajax({
                type: "POST",
                url: "/Home/SubmitForm",
                data: obj2,
                dataType: "text",
                async: false,
                traditional: false,
                success: function (data) {
                    var rows = data.rows;

                }
            });

        [HttpPost]
        public string SubmitForm(mymode request)
        {
            if (request != null)
            {
                // 
            }
            return "操作成功。";
        }