Error during serialization or deserialization using the JSON javascriptserializer. The length of the string exceeds the value set on the maxjsonlength property.

Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property.

public JsonResult GetPeriodById(int PeriodId)
        {
            Tbl_Periods model;
            model = db.Tbl_Periods.Where(s => s.Period_Id == PeriodId).SingleOrDefault();

            string value = string.Empty;
            value = JsonConvert.SerializeObject(model, Formatting.Indented, new JsonSerializerSettings
            {
                ReferenceLoopHandling = ReferenceLoopHandling.Ignore
            });
            return Json(value, JsonRequestBehavior.AllowGet);
        }

function EditStudentRecord(PeriodId) {
       var url = config.serverPath + "Home/GetPeriodById?PeriodId=" + PeriodId;
       $("#ModalTitle").html("Update Period");
       $("#MyModal").modal();
       $.ajax({
           type: "GET",
           url: url,
           success: function (data) {
               var obj = JSON.parse(data);
               $("#pId").val(obj.Period_Id);
               $("#stDate").val(obj.Start_Date);
               $("#endDate").val(obj.End_Date);
               $("#projectID").val(obj.project_Id);
              //$("#DropDwn option:selected").text(obj.tblDepartment.DepartmentName);
               //$("#DropDwn option:selected").val(obj.DepartmentId);
           }
       })
   }