title: DateParsing a string converted from a Date
body: <p>I have a datetime value that I want displaying as a string in particular format, at the moment I am trying this</p>
  
  <pre><code> lastUpdate = DateTime.ParseExact(tmpDt.ToString(), "d/M/YYYY",
                                    CultureInfo.InvariantCulture).ToString();
  </code></pre>
  
  <p>The error i'm getting is <code>FormatException</code></p>