public void EnrollInCourse() { if (SelectedCourse != null && !AlreadyEnrolledInCourse(SelectedCourse)) { CoursesEnrolledIn.Add(SelectedCourse); } else { // handle error } }
public void RemoveSelectedCourse() { CoursesEnrolledIn.Remove(EnrolledCourseSelection); }
private bool AlreadyEnrolledInCourse(Course course) { return(CoursesEnrolledIn.Contains(course)); }