public JsonResult GetTeacherID(long TopicID) { ResultInfo <StudentRateLesson> ResultInfo = new ResultInfo <StudentRateLesson>() { Status = false, Description = "Failed|Login" }; SchoolStudent pageobj = new SchoolStudent(); StudentRateLesson assign = new StudentRateLesson(); if (TopicID > 0) { assign.SubjectID = pageobj.GetSubIdByTopicID(TopicID); if (assign.SubjectID > 0) { assign.TeacherID = pageobj.GetTeacherIDBySubID(assign.SubjectID); } } ResultInfo.Info = assign; return(Json(ResultInfo, JsonRequestBehavior.AllowGet)); }