public IActionResult OnPostGetCourseScheduleList(int year, int day, int lesson, CourseScheduleType courseScheduleType) { ResultList <SCourseSchedule> result = new ResultList <SCourseSchedule>(); try { result.List = _CourseSrv.GetCourseSchedule_ForSelection(year, day, lesson); } catch (Exception ex) { result.ErrorMsg = ex.Message; } return(new JsonResult(result)); }