title: get active number page in DataPager
body: <p>i have LinkButton inside ListView control, i want get active number page in DataPager with click on LinkButton.</p>
  
  <pre><code>protected void addToCart_Click(object sender, CommandEventArgs e)
  {
      //get active number page
  }
  </code></pre>
  
  <p>please help me.</p>