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Update a RadAjaxPanel on every postback?

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Martin
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Martin asked on 16 Feb 2009, 02:55 PM
I have a RadAjaxPanel on my masterpage and I'd like to update this panel whenever a postback from another RadAjaxPanel occurs.

Using the ASP.NET UpdatePanel, this would be very easy to achieve, e.g. the following panel (with UpdateMode=Always) is updated whenever a postback is triggered from another UpdatePanel:

<asp:UpdatePanel ID="myPanel" runat="server" UpdateMode="Always"
 <ContentTemplate> 
  <%= DateTime.Now.ToString("G") %> 
 </ContentTemplate> 
</asp:UpdatePanel> 

So far I have not found how to achieve the same using the RadAjaxPanel. And also using an asp:UpdatePanel in the master page does not work, since it is not updated when the postback is triggered by a RadAjaxPanel.

How can I update a RadAjaxPanel (located in the masterpage) whenever an async postback is triggered by another RadAjaxPanel?

Thanks for your help.

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Martin
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answered on 17 Feb 2009, 08:01 AM
OK, two updates:
  • First of all, I was posting in the wrong forum, since in that application I was still using the "classic" RadControls for ASP.NET (without Ajax).
  • Second: using the RadAjaxPanel from the ASP.NET Ajax Suite, it works as expected, although the performance seems to be worse than when using the asp:UpdatePanel.

Best regards
Martin
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Iana Tsolova
Telerik team
answered on 17 Feb 2009, 11:54 AM
Hello Martin,

Please find the below articles for more information on how to use RadAjax in your scenario:
http://www.telerik.com/help/aspnet-ajax/ajxcontrolsinajaxpanelandajaxsettings.html
http://www.telerik.com/help/aspnet-ajax/ajxmasterpageupdateeverywhere.html
http://www.telerik.com/products/aspnet-ajax/resources/top-performance.aspx

Check it out and let me know if any questions arise.

Additionally, you could send us a sample application illustrating the performance issues you are facing. Thus we could we could investigate it in depth locally in order to provide a resolution for you.

Sincerely yours,
Iana
the Telerik team

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Martin
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answered on 17 Feb 2009, 01:57 PM
Thanks for the links, I will check them out.

Regarding the (small) performance issue: what I noticed (using Fiddler) was that with the asp:UpdatePanel there was only one request when a button inside the panel is clicked, while with the RadAjaxPanel, there were additional requests for images and CSS files.

Best regards
Martin
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Iana Tsolova
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