title: ASP.NET Update Panel Updates only Once
body: <p>Hi I have an Update Panel like this</p>
  
  <pre><code>&lt;asp:UpdatePanel ID="Updatepanel1" runat="server"&gt;
      &lt;Triggers&gt;
          &lt;asp:AsyncPostBackTrigger ControlID="RadioButtons1" EventName="SelectedIndexChanged" /&gt;
          &lt;asp:AsyncPostBackTrigger ControlID="DropDown1" EventName="SelectedIndexChanged" /&gt;
          &lt;asp:AsyncPostBackTrigger ControlID="DropDown2" EventName="SelectedIndexChanged" /&gt;
          &lt;asp:AsyncPostBackTrigger ControlID="DropDown3" EventName="SelectedIndexChanged" /&gt;
      &lt;/Triggers&gt;
      &lt;ContentTemplate&gt;
          &lt;asp:Label runat="server" Text="LabelToUpdate"&gt;&lt;/asp:Label&gt;
      &lt;/ContentTemplate&gt;
  
  &lt;/asp:UpdatePanel&gt;
  </code></pre>
  
  <p>I want to update the label everytime one of the above triggers happens.</p>
  
  <p>The first time I trigger it everything works perfectly fine. But after that there are no more updates even if I change anything (It is like  all Control's <code>AutoPostBack</code> get set to false after the first Partial Post back, so nothing happens when i change the selection a second time).</p>
  
  <p>Any help is greatly appreciated</p>
  
  <p>Thank you</p>