C#

protected override void OnKeyDown(KeyEventArgs e)
{
      switch(e.KeyCode)
      {
          case Keys.Up:
            MoveUp();
            break;
         case Keys.Left:
            MoveLeft();
            break;
         case Keys.Right:
            MoveRight();
            break;
         case Keys.Tab:
         case Keys.Enter:
         case Keys.Down:
               MoveDown();
            break;
         default:
            //create the textbox then set its text.
            break;
      }
   base.OnKeyDown(e);
}

case Keys.Up:
  MoveUp();
  e.Handled = true;
  break;

The only man who never makes a mistake is the man who never does anything. - Theodore Roosevelt

protected override void OnKeyDown(System.Windows.Forms.KeyEventArgs e)
{
    if(e.KeyCode.ToString() == "K" || e.KeyCode.ToString() == "k")
        MessageBox.Show("You hit K or k");
    base.OnKeyDown(e);
}

The only man who never makes a mistake is the man who never does anything. - Theodore Roosevelt

The only man who never makes a mistake is the man who never does anything. - Theodore Roosevelt

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"When the only tool you have is a hammer, a sore thumb you will have."