public void CreateMyForm() 
{ 
   // Create a new instance of the form. 
   Form form1 = new Form(); 
   // Create two buttons to use as the accept and cancel buttons. 
   Button button1 = new Button (); 
   Button button2 = new Button (); 

   // Set the text of button1 to "OK". 
   button1.Text = "OK"; 
   // Set the position of the button on the form. 
   button1.Location = new Point (10, 10); 
   // Set the text of button2 to "Cancel". 
   button2.Text = "Cancel"; 
   // Set the position of the button based on the location of button1. 
   button2.Location 
      = new Point (button1.Left, button1.Height + button1.Top + 10); 
   // Set the caption bar text of the form.    
   form1.Text = "My Dialog Box"; 
   // Display a help button on the form. 
   form1.HelpButton = true; 

   // Define the border style of the form to a dialog box. 
   form1.FormBorderStyle = FormBorderStyle.FixedDialog; 
   // Set the MaximizeBox to false to remove the maximize box. 
   form1.MaximizeBox = false; 
   // Set the MinimizeBox to false to remove the minimize box. 
   form1.MinimizeBox = false; 
   // Set the accept button of the form to button1. 
   form1.AcceptButton = button1; 
   // Set the cancel button of the form to button2. 
   form1.CancelButton = button2; 
   // Set the start position of the form to the center of the screen. 
   form1.StartPosition = FormStartPosition.CenterScreen; 

   // Add button1 to the form. 
   form1.Controls.Add(button1); 
   // Add button2 to the form. 
   form1.Controls.Add(button2); 

   // Display the form as a modal dialog box. 
   form1.ShowDialog(); 
}