title: Locked property is not working in Windows Forms for Textbox
body: <p>When I select <code>Locked property</code> to <code>true</code> for <code>Textbox</code> in <code>Windows Forms</code>. On runtime I will be able to type into that <code>Textbox</code></p>
  <p>So how to can I make it <code>readonly</code> without <code>disabled</code> effect or without using <code>ReadOnly</code> property of <code>Textbox</code></p>
  <p>Could someone please help me on this? Thanks in advance.</p>