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Asked: 2026-05-11T02:47:41+00:00

I was reading an article that shows how bad CodePlex uses UpdatePanels and how

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I was reading an article that shows how bad CodePlex uses UpdatePanels and how nice is StackOverflow on this matter when, for example, a user upvotes an answer/question.

I wonder if someone can point a tutorial on how to do such action.

I know some points:

  1. Create a Web Service that gets the action value and ouputs a JSON string
  2. Build the javascript inside <ajax:ScripManager> control to replace the correct value on the page with the new value

But, even in the first I have difficulties, I can send a JSON string, but it will always be surrounded with XML information!

Can anyone (or maybe Jeff) point to a nice ‘how-to’ since scratch? Thank you.

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  1. Before you dismiss the UpdatePanel I suggest you have a read of this post I did – http://www.aaron-powell.com/blog/august-2008/optimising-updatepanels.aspx. It looks at how to optimise UpdatePanels and it can lead to some performance increases if done well.

    I also did a post – http://www.aaron-powell.com/blog/august-2008/paging-data-client-side.aspx which looks at doing client-side templating with jQuery and MS AJAX. I look at how to read a web service with JavaScript and if you download the sample you’ll see how to send data client-side to a web service.

    But this video cast on the ASP.NET website may also be of use – http://www.asp.net/learn/ajax-videos/video-82.aspx. It’s on how to extend web services for script service capabilities.

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