public JsonResult SubForumListByClassID(long SchoolID, long ClassID)
        {
            ResultInfo <List <SubjectForum> > ResultInfo = new ResultInfo <List <SubjectForum> >()
            {
                Status      = false,
                Description = "Failed|Login"
            };
            SchoolStudent PageObj = new SchoolStudent();


            ResultInfo.Info = PageObj.SubjectForumByClassID(SchoolID, ClassID);

            if (ResultInfo.Info != null)
            {
                ResultInfo.Description = "Success| Get all community By StudentID";
                ResultInfo.Status      = true;
            }
            return(Json(ResultInfo, JsonRequestBehavior.AllowGet));
        }