title: Converting DateAdd and Format code from VB6 to C#
body: <p>I have the following code in vb - </p>
  
  <pre><code>tAvailableDate = DateAdd("d", 21, Format(Now, gDATEFORMAT))
  </code></pre>
  
  <p>I am attempting to convert this into C#.</p>
  
  <p>I have converted this so far -</p>
  
  <pre><code>tAvailableDate = DateAdd("d", 21, Format (DateTime.Now, Global.gDATEFORMAT));
  </code></pre>
  
  <p>But I cannot find a replacement for the <code>DateAdd()</code> or <code>Format()</code> feature. </p>
  
  <p>Any ideas? Thanks.</p>