title: How to disable menu items?
body: <p>I had a problem about <code>Menu</code>. I add a <code>MenuItem</code> in <code>asp.net</code>. I'm using <code>c#</code>. I want to disable Menu <strong>Parents and Children</strong> with user's permission.
  There are 3 users which are "User","Power-User" and "BT_User". "User" have worst permission and "BT_User" have best.</p>
  
  <p>How can I do that? Can anyone answer me?</p>