title: How to remove beep audio from textBox?
body: <p>I am trying to remove the annoying 'beep' audio when the user press 'TAB' key (actually it works as 'ENTER' because I changed its behaviour). 
  I have tried the below code, but it did not work!</p>
  
  <pre><code>private void textBox1_KeyDown(object sender, KeyEventArgs e)
  {
      if (e.KeyCode == Keys.Tab)
      {
          e.SuppressKeyPress = true;
      }
  }
  </code></pre>
  
  <p>Any help will be appreciated,thanks a lot!</p>