public ActionResult StudentRegitration(Student student) { ViewBag.departments = departmentManager.GetAllDepartment(); if (ModelState.IsValid) { int id = student.DepartmentId; Department department = departmentManager.DepartmenentNameById(id); student.DepartmentName = department.Name; string message = studentManager.Save(student); ViewBag.Message = message; } return(View()); }