title: Override ProcessCmdKey C#
body: <p>I have code that overrides the TextBox ProcessCmdKey method:</p>
  
  <pre><code>protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
  {
      switch (keyData)
      {
          case: //something to do etc etc.
      }
      return true;
  }
  </code></pre>
  
  <p>But when I use the above code, I can't write in the TextBox. Is there a solution for this?</p>