title: updatepanel doesnt update correctly, must click twice to update
body: <p>I am using an update panel and when I click a button it will update all the panels.</p>
  
  <p><code>updapanel1.update()</code> is very simple, but my data is not updating unless I hit the button twice.</p>
  
  <p>My gridviews shows data for a selected user, and then all the grids reflect that users data.
  works fine all the update panels work for the gridviews.</p>
  
  <p>Now for somereason when i try to do a row count and update the panel with the summary, it does not work, i get either the previous users summary or if i hit update again for the same user i get the correct data.</p>
  
  <pre><code>'the grids are in these panels
       UpdatePanel1.Update()
              UpdatePanel2.Update()
              UpdatePanel4.Update()
              UpdatePanel6.Update()
              UpdatePanel7.Update()
  
  'the things that are not updateing correctly
              rqnum.Text = GridView3.Rows.Count
              oknum.Text = GridView4.Rows.Count
              xlnum.Text = GridView5.Rows.Count
              dynum.Text = DataList1.Items.Count
  
              UpdatePanel8.Update()
              Panel1.Visible = False
  </code></pre>