private void InitializeMyButton()
 {
    // Create and initialize a Button.
    Button button1 = new Button();
 
    // Set the button to return a value of OK when clicked.
    button1.DialogResult = DialogResult.OK;
 
    // Add the button to the form.
    Controls.Add(button1);
 }

//引入命名空间
using System;  
using System.Drawing;
using System.Windows.Forms;

class FormHand : Form
{
  private TextBox firstNameBox = new TextBox(); 
  private Button btnShowControls = new Button();
  
  public FormHand()
  {
    firstNameBox.Text = "Text";
    firstNameBox.Size = new Size(150, 50);
    firstNameBox.Location = new Point(10, 10);
    this.Controls.Add(firstNameBox);

    btnShowControls.Text = "Click Me";
    btnShowControls.Size = new Size(90, 90);
    btnShowControls.Location = new Point(10, 70);
    btnShowControls.Click += new EventHandler(btnShowControls_Clicked);
    this.Controls.Add(btnShowControls);

    CenterToScreen();
  }

  protected void btnShowControls_Clicked(object sender, EventArgs e)
  {
    Control.ControlCollection coll = this.Controls;
    foreach(Control c in coll)
    {
      if(c != null)
        Console.WriteLine(string.Format("Index: {0}, Text: {1}\n", coll.GetChildIndex(c, false), c.Text));
    }
    MessageBox.Show("Message", "Index and Text values for each control");
  }

    public static int Main(string[] args)
    {
    Application.Run(new FormHand());
    return 0;
    }
}