title: How to check for read permissions on a folder?
body: <p>I know that this method is good to check if a user has write permissions to folder:</p>
  
  <pre><code>Directory.GetAccessControl(path);
  </code></pre>
  
  <p>If it throws <code>UnauthorizedAccessException</code> I know that the user has read permission or non permission.</p>
  
  <p>How to know if a user has read permissions?</p>
  
  <p>Is <code>Directory.Exists(path)</code> a good enough solution?</p>