title: Disable future dates selection in Ajax Calendar
body: <p>I have tried this code to disable future dates to be selected but it does not seem to be working.</p>
  
  <pre><code>public void Calendar1_DayRender(object o, DayRenderEventArgs e)
  {
      if (e.Day.Date &lt; DateTime.Today)
      {
          e.Day.IsSelectable = false;
      }
  }
  </code></pre>