title: ASP.Net UpdatePanel doesn't do PostBack
body: <p>I have an ASP.Net page with a long, time-consuming function. I want it to show the "LOADING" word while computing, and show the results when it's done. Here's the code:</p>
  
  <pre><code>&lt;asp:UpdatePanel UpdateMode="Always" runat="server" ID="upanel1"&gt;
          &lt;ContentTemplate&gt;
              &lt;asp:Button ID="btnGetInfo"  runat="server" Text="Lekérés" OnClick="btnGetInfo_Click" /&gt;
          &lt;/ContentTemplate&gt;
          &lt;Triggers&gt;
             &lt;asp:AsyncPostBackTrigger ControlID="btnGetInfo" EventName="Click" /&gt;
          &lt;/Triggers&gt;
      &lt;/asp:UpdatePanel&gt;
  &lt;/div&gt;
  &lt;asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="upanel1"&gt;
      &lt;ProgressTemplate&gt;
          &lt;div&gt;
              LOADING&lt;/div&gt;
      &lt;/ProgressTemplate&gt;
  &lt;/asp:UpdateProgress&gt; 
  </code></pre>
  
  <p>It's almost working(I can see "LOADING" and after the btnGetInfo_Click function ended, "LOADING" disapperrs). I just need a PostBack when it's done.</p>
  
  <p>I've found some similar problem, but the solutions didn't help me.</p>
  
  <p>Thank You for the answers!</p>