Événement d’un bouton: Modifier la propriété d’un bouton

using System;
using System.Windows.Forms;
using System.Drawing;
 
public class ModificationTextBouton : Form
{
 
  Button btnClick;
 
  public ModificationTextBouton()
  {
      Text = "Modifier la Propriété d'un bouton";
    btnClick = new Button();
    btnClick.Text = "Cliquez ici";
    btnClick.Height = 60;
    btnClick.Width = 80;
    btnClick.Top = 60;
    btnClick.Left = 60;
 
    btnClick.Click += new EventHandler(ButtonClicked);
 
    this.Controls.Add(btnClick);
 
    this.Height = 200;
    this.Width = 200;
    this.StartPosition = FormStartPosition.CenterScreen;
    this.Visible = true;
  }
 
  public void ButtonClicked(object source, EventArgs e) {
    Button b = (Button)source;
    if ( b.Text == "Clique ici" ) {
      b.Text = "Cliquez encore";
    }
    else {
      b.Text = "Cliquez ici";
    }
  }
 
  static void Main()
  {
      Application.Run(new ModificationTextBouton());
  }
}