title: C# and xml: xs:dateTime and DateTime comparesion
body: <p>I have an xml object 'Date' type of xs:dateTime:</p>
  
  <pre><code>&lt;MyTable&gt;
  &lt;Date&gt;2012-06-18T:00:00:00&lt;/Date&gt;
  ...[some other data]...
  &lt;/MyTable&gt;
  </code></pre>
  
  <p>I'm using DataSet to get data from my xml.</p>
  
  <p>I want to select all rows from table where Date >= given date:</p>
  
  <pre><code>MyTable.Select("Date &gt;" + givenDate.ToString());
  </code></pre>
  
  <p>How in this way I should convert givenDate to string? Using mask? Or it's enough to  simply use givenDate.ToString() ?</p>