ユーザーコントロールにデータバインド

public class UserControl1 : UserControl {
  private TextBox textBox1;
  private Button button1;
  private System.ComponentModel.Container components = null;

  public UserControl1() {
    InitializeComponent();
  }
  protected override void Dispose( bool disposing ) {
    if( disposing ) {
      if(components != null)
        components.Dispose();
    }
    base.Dispose( disposing );
  }

  private void InitializeComponent() {
    this.textBox1 = new System.Windows.Forms.TextBox();
    this.button1 = new System.Windows.Forms.Button();
    this.SuspendLayout();
    this.textBox1.Location = new System.Drawing.Point(0, 0);
    this.textBox1.Name = "textBox1";
    this.textBox1.TabIndex = 0;
    this.textBox1.Text = "textBox1";
    this.textBox1.Validating += 
      new System.ComponentModel.CancelEventHandler(this.textBox1_Validating);
    this.textBox1.Validated += 
      new System.EventHandler(this.textBox1_Validated);
    this.textBox1.TextChanged += 
      new System.EventHandler(this.textBox1_TextChanged);

    this.button1.Location = new System.Drawing.Point(112, 0);
    this.button1.Name = "button1";
    this.button1.TabIndex = 1;
    this.button1.Text = "button1";

    this.Controls.Add(this.button1);
    this.Controls.Add(this.textBox1);
    this.Name = "UserControl1";
    this.Size = new System.Drawing.Size(192, 24);
    this.ResumeLayout(false);
  }

  private void textBox1_TextChanged(object sender, System.EventArgs e) {
    this.OnTextChanged(e);
  }

  private void textBox1_Validated(object sender, System.EventArgs e) {
    this.OnValidated(e);
    ((CurrencyManager)this.DataBindings[0].BindingManagerBase).Refresh();
  }

  private void textBox1_Validating(
    object sender, System.ComponentModel.CancelEventArgs e) {
      this.OnValidating(e);
  }

  public override string Text {
    get { return textBox1.Text; }
    set { textBox1.Text = value; }
  }
}