title: Nested UpdatePanel refresh parent
body: <p>I have a case that I'm using an update panel that when updated it will load a user control containing a child update panel, and its code is as follows:</p>
  
  <pre><code>&lt;asp:UpdatePanel runat="server" ID="Parent" UpdateMode="Conditional" ChildrenAsTriggers="false" &gt;
    &lt;ContentTemplate&gt;
       &lt;asp:PlaceHolder runat="server" ID="ChildUPNL"&gt;&lt;/asp:PlaceHolder&gt;
    &lt;/ContentTemplate&gt;
  &lt;/asp:UpdatePanel&gt;
  </code></pre>
  
  <p>In the code behind I got an object then use the <code>Update</code> method to refresh the parent update panel</p>
  
  <p>Then It' should have my user control filled with data
  in the user control I have an update panel also like:</p>
  
  <pre><code>&lt;asp:UpdatePanel runat="server" ID="Child" OnLoad="ChildLoad"&gt;
                      &lt;ContentTemplate&gt;
                          &lt;asp:LinkButton Text="Link button" runat="server" /&gt;
                          &lt;asp:Button Text="Button" runat="server" OnClick="ButtonClick"/&gt;
                      &lt;/ContentTemplate&gt;
                  &lt;/asp:UpdatePanel&gt;
  </code></pre>
  
  <p>When I click on the link button the full page reloaded even the parent and my user control disappered as it not in the page direct
  and if I click on the normal button nothing done !
  didn't go to the update panel on load event nor the button click event !</p>
  
  <p>Any idea why this action done !
  I need when click on button to change some values or save values to database so I need to go throw the server side code without post back the page</p>