public JsonResult TopicListBySubID(long SubjectID)
        {
            ResultInfo <List <SchoolSyllabusTopic> > ResultInfo = new ResultInfo <List <SchoolSyllabusTopic> >()
            {
                Status      = false,
                Description = "Failed|Login"
            };
            List <SchoolSyllabusTopic> nm = new List <SchoolSyllabusTopic>();
            SchoolStudent PageObj         = new SchoolStudent();

            if (SubjectID > 0)
            {
                nm = PageObj.GetTopicsForAssignment(SubjectID);
                ResultInfo.Info = nm;
            }
            if (ResultInfo.Info != null)
            {
                ResultInfo.Description = "Success| Get level name with id";
                ResultInfo.Status      = true;
            }
            return(Json(ResultInfo, JsonRequestBehavior.AllowGet));
        }