button事件驱动

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace MyFirstApp

{

    public partial class FrmMain : Form

    {

        public FrmMain()

        {

            InitializeComponent();

            this.button1.Click += new EventHandler(btn_Click);

            this.button2.Click += new EventHandler(btn_Click);

            this.button3.Click += new EventHandler(btn_Click);

        }

      

        private void btn_Click(object sender, EventArgs e) 

        {

        Button btn = (Button)sender;

            MessageBox.Show(btn.Text);

        }

    }

}