title: timespan difference value always positive
body: <p>i want to convert the timespan diff value always positive </p>
  
  <p>My code is here : </p>
  
  <pre><code>TimeSpan lateaftertime = new TimeSpan();
  lateaftertime = lateafter - Convert.ToDateTime(intime);
  </code></pre>
  
  <p>i want to get the result of lateaftertime always positive..
  please help me..</p>