title: System constant for the number of days in a week (7)
body: <p>Can anyone find a constant in the .NET framework that defines the number of days in a week (7)?</p>
  
  <pre><code>DateTime.DaysInAWeek // Something like this???
  </code></pre>
  
  <p>Of course I can define my own, but I'd rather not if it's somewhere in there already.</p>
  
  <h2>Update:</h2>
  
  <p>I am looking for this because I need to allow the user to select a week (by date, rather than week number) from a list in a DropDownList.</p>