using System using System Collections Generic using System Linq using

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class List
{
string[] items;
int count;
public List()
{
items = new string[4];
count = 0;
}
public int Count
{
get { return count; }
}
public void add(string item)
{
items[count] = item;
count++;
OnChange();
}
public EventHandler Change;
delegate void Changer();
public virtual void OnChange(){
if (Change != null)
{
Change(this, EventArgs.Empty);
}
}
}
class Program
{
static int changeCount;
static void ListChange(object sender, EventArgs e)
{
changeCount++;
}
static void Main(string[] args)
{
List names = new List();
//names.Change += new EventHandler(ListChange);
//names.Change += new delegate (object sender, EventArgs e) { changeCount++; };
names.Change += (object sender, EventArgs e) => { changeCount++; };
names.add("123");
names.add("123");
Console.WriteLine(changeCount);
}
}
}