Jei kam reikia kodas kaip tai padaryt:

 public class UclBase : UserControl
 {
  #region Attributes
  private IButtonControl _AcceptButton = null;
  private IButtonControl _CancelButton = null;

  #endregion

  #region properties
  [Description ("Gets or sets the button on the form that is clicked when the user presses the ENTER key.")]
  public IButtonControl AcceptButton
  {
   get { return _AcceptButton; }
   set { _AcceptButton = value; }
  }

  [Description ("Gets or sets the button control that is clicked when the user presses the ESC key.")]
  public IButtonControl CancelButton
  {
   get { return _CancelButton; }
   set { _CancelButton = value; }
  }

  #region Overrides
  protected override bool ProcessCmdKey (ref Message msg, Keys keyData)
  {
   if (keyData == Keys.Enter &&
    _AcceptButton != null)
   {
    _AcceptButton.PerformClick ();
    return true;
   }
   else if (keyData == Keys.Escape &&
    _CancelButton != null)
   {
    _CancelButton.PerformClick ();
    return true;
   }

   return base.ProcessCmdKey (
    ref msg, keyData);
  }
 }


#endregion