Şafak Ünel (Matematik Mühendisi)

 public class Person
    {
        public string Name { get; set; }
        public string Surname { get; set; }
        public int Age { get; set; }

        public override string ToString()
        {
            return "Fullname: " + Name + " " + Surname + " Age: " + Age;
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            ObservableCollection<Person> people 
                = new ObservableCollection<Person>();

            // event'i delege ediyoruz
            people.CollectionChanged += people_CollectionChanged;

            people.Add(new Person() 
                { Name = "Salih", Surname = "Sayar", Age = 42 });
            people.Add(new Person() 
                { Name = "Ahmet", Surname = "Yilmaz", Age = 21 });

            people.RemoveAt(0);

            Console.ReadLine();
        }

        private static void people_CollectionChanged(object sender,
  System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
        {
            // Ne nedenle bu event calisti?
            Console.WriteLine("nAction for this event: {0}", e.Action);

            // Silindi ise
            if (e.Action == 
   System.Collections.Specialized.NotifyCollectionChangedAction.Remove)
            {
                Console.WriteLine("Silinen insanlar:");
                foreach (Person p in e.OldItems)
                {
                    Console.WriteLine(p.ToString());
                }
                Console.WriteLine();
            }

            // eklendi ise
            if (e.Action == 
    System.Collections.Specialized.NotifyCollectionChangedAction.Add)
            {
                Console.WriteLine("Eklenen insanlar:");
                foreach (Person p in e.NewItems)
                {
                    Console.WriteLine(p.ToString());
                }
            }
        }
    }