Add control to a form window using System; using System.Windows.Forms; using System.Drawing; public class PushMe2 : Form { Button pushMeButton; public PushMe2() { pushMeButton = new Button(); pushMeButton.Text = "Push Me"; pushMeButton.Height = 66; pushMeButton.Width = 90; pushMeButton.Top = 70; pushMeButton.Left = 80; pushMeButton.Click += new EventHandler(ButtonClicked); this.Controls.Add(pushMeButton); this.Height = 240; this.Width = 240; this.StartPosition = FormStartPosition.CenterScreen; this.Visible = true; } public void ButtonClicked(object source, EventArgs e) { Button b = (Button)source; if ( b.Text == "Push Me" ) { b.Text = "Ouch"; } else { b.Text = "Push Me"; } } static void Main() { Application.Run(new PushMe2()); } }