Exemplo n.º 1
0
        static void Main(string[] args)
        {
            //int потому что нам нужно зарегистрировать изменения значения группы
            //тип которого int => KeySelector должен быть int.
            var first  = new StudentCollection <int>((e) => e.Id, "first");
            var second = new StudentCollection <int>((e) => e.Id, "second");


            var j = new Journal <int>();

            j.Subscribe(first);
            j.Subscribe(second);


            var s1 = new Student(Education.Bachelor, 5);
            var s2 = new Student(Education.Bachelor, 5);

            first.AddStudents(s1);
            second.AddStudents(s2);
            s1.Educ = Education.SecondEducation;
            s2.Educ = Education.Specialist;

            s1.Group = 4;
            s2.Group = 1;

            first.Remove(s1.Id);
            second.Remove(s2.Id);

            s1.Educ = Education.Specialist;
            s2.Educ = Education.Bachelor;

            s1.Group = 4;
            s2.Group = 1;

            // After deleting from Collections changing not write in journal
            Console.WriteLine(j.ToString());
        }
Exemplo n.º 2
0
 public void Subscribe(StudentCollection <TKey> a)
 {
     a.StudentsChanged += RegisterStudentChanged;
 }