using System;
using System.Windows.Forms;
using System.Drawing;

class ex : Form
{
    Button b1 = new Button();

    ex()
    {
        Text = "hello";
        b1.Text = "example";
        b1.Click += new EventHandler(button_b1_click);
        Controls.Add(b1);
    }

    void button_b1_click(object sender, EventArgs e)
    {
        MessageBox.Show("example message");
    }

    static public void Main()
    {
        Application.Run(new ex());
    }
}