Handle button messages

   

/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Handle button messages. 
 
using System; 
using System.Windows.Forms; 
using System.Drawing; 
 
public class ButtonForm1 : Form { 
  Button MyButton = new Button(); 
 
  public ButtonForm1() { 
    Text = "Respond to a Button"; 
 
    MyButton = new Button(); 
    MyButton.Text = "Press Here"; 
    MyButton.Location = new Point(100, 200); 
 
    // Add button event handler to list. 
    MyButton.Click += new EventHandler(MyButtonClick); 
 
    Controls.Add(MyButton); 
  }   
 
  [STAThread] 
  public static void Main() { 
    ButtonForm1 skel = new ButtonForm1(); 
 
    Application.Run(skel); 
  } 
 
  // Handler for MyButton. 
  protected void MyButtonClick(object who, EventArgs e) { 
 
    if(MyButton.Top == 200) 
      MyButton.Location = new Point(10, 10); 
    else 
      MyButton.Location = new Point(100, 200); 
  } 
}