title: Cannot disable beep sound on textbox keydown event
body: <p>Below is my code for disabling beep sound when I press "Enter" on textbox <code>KeyDown()</code> event:</p>
  
  <pre><code>if (e.KeyCode == Keys.Enter)
  {
      e.SuppressKeyPress = true;
      SaveData();
      e.Handled = true;
  }
  </code></pre>
  
  <p>But it keeps beeping when I press "Enter" on textbox. What am I doing wrong?</p>