How to get text from windows clipboard in windows form application

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 WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

     
              private void button1_Click(object sender, EventArgs e)
     
      {
            String cbtext = Clipboard.GetText();
            label2.Text = cbtext;
           
           
        }
    }
}