protected override async Task OnInitializedAsync()
        {
            Id      = Id ?? "1";
            Student = await StudentService.GetStudent(int.Parse(Id));

            Students    = (await StudentService.GetAllStudents()).ToList();
            Courses     = (await CourseService.GetAllCourses()).ToList();
            Enrollments = (await EnrollmentService.GetAllEnrollments()).ToList();
        }