Lambda Expressions in event handling

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class Default5 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        //Create a Dynamic Button
        Button b = new Button();
        b.Text = "hello";
        //Use of the   Lambda expression

        b.Click += (s, z) => Response.Write("good");

        //add the Control to the WebForm
        //form1 is the id of the WebForm
        this.FindControl("form1").Controls.Add(b);

    }
}

//when you click the button the message good will be displayed.