public JsonResult GetCourseInformationByDepartmentId(int departmentId)
{
IEnumerable <CourseAssignView> courseViewModels = courseAssignToTeacherManager.GetAllAssignCourse().ToList().FindAll(deptId => deptId.DepartmentId == departmentId);
return(Json(courseViewModels, JsonRequestBehavior.AllowGet));
}
