仅返回某个对象的值ajax json

Question

我想从json响应中返回值，但是我似乎无法将id传递给该方法，因为它要么不返回任何值，要么给我无效的json响应。在我的数据库中。

        public string GetData()
    {
        string sJSONResponse = "";
        List<string> data = new List<string>();
        using (var context = new RSAT.Api.Data.Proxy.ATT2018NOVUSContext())
        {
            var baseViewModel = (from userinfo in context.Userinfo
                                 join department in context.Dept on userinfo.Deptid equals department.Deptid
                                 select new
                                 {
                                     Id = userinfo.Userid,
                                     Name = userinfo.Name,
                                     Department = department.DeptName,
                                     CardNumber = userinfo.CardNum,
                                     Status = userinfo.UserFlag.ToString(),
                                     HistoryOfStatuses = (from checkinout in context.Checkinout
                                                          join status in context.Status on checkinout.CheckType equals status.Statusid
                                                          where checkinout.Userid == userinfo.Userid
                                                          orderby checkinout.CheckTime descending
                                                          select new Checkinout
                                                          {
                                                              CheckStatus = status.StatusText,
                                                              CheckTime = checkinout.CheckTime
                                                          }).ToList(),
                                 }).ToList();

            foreach (var i in baseViewModel)
            {
                foreach (var h in i.HistoryOfStatuses)
                {
                    var s = "[\"" + h.CheckStatus + "\"," + "\"" + h.CheckTime + "\"]";
                    data.Add(s);
                }
            }

            string dataRez = "[";
            foreach (var i in data)
            {
                dataRez += i + ",";
            }
            dataRez = dataRez.Remove(dataRez.Length - 1);
            dataRez = dataRez + "]";
            sJSONResponse = "{\"draw\": 1,\"recordsTotal\": 57,\"recordsFiltered\": 57,\"data\":" + dataRez + "}";
        }
        return sJSONResponse;
    }

此代码在我的控制器中并在我看来：

   $(document).ready(function () {
        $.noConflict();
        $('#myTable1').DataTable({
            "ajax": {
                "url": "/Profile/GetData",
                "type": "POST",
                "datatype": "application/json",
                "order": [0, "asc"],
                "processing": "true",
                "ordering": "false",
                "pageLength": 50,
                "serverSide" : "true",
            },  });