title: convert string to cultureinfo
body: <p>How can I convert <code>String</code> to <code>CultureInfo</code>?</p>
  
  <pre><code>Cultureinfo ci;
  String dummy = dropdownlist.SelectedValue; 
  ci = (CultureInfo) dummy; // &lt;- compile time error here
  </code></pre>
  
  <blockquote>
    <p>Error: cannot convert string to CultureInfo.</p>
  </blockquote>