Comments on: Display data updates in real-time with AJAX http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/ ASP.NET and AJAX code, ideas, and examples. Sat, 13 Mar 2010 18:20:22 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: kurt http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-38192 kurt Wed, 03 Mar 2010 08:44:48 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-38192 nice article, i tried to run this code and it works.! nice article, i tried to run this code and it works.!

]]> By: onur http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-37856 onur Sun, 24 Jan 2010 20:06:27 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-37856 I’d suggest setting a breakpoint inside the page method and debugging. It could be a few things, but inspecting it at runtime will be the easiest way to figure it out. I’d suggest setting a breakpoint inside the page method and debugging. It could be a few things, but inspecting it at runtime will be the easiest way to figure it out.

]]> By: Dave Ward http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-37721 Dave Ward Sat, 02 Jan 2010 18:35:20 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-37721 Yes, that would work. The authentication for ASMX services is URL based, same as for ASPX pages. Yes, that would work. The authentication for ASMX services is URL based, same as for ASPX pages.

]]> By: Robert Pfeffer http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-36518 Robert Pfeffer Tue, 22 Sep 2009 14:33:09 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-36518 very good article. I ran into a problem because the page is protected by an authorization section in the Web.config. When it tries to invoke the page method a logon screen appears (I am using windows authentication), and it does not accept any id I enter. Would moving the code for the webmethod to a separate code file in a subdirectory that allows all users work? or is it even possible. Regards very good article.
I ran into a problem because the page is protected by an authorization section in the Web.config.
When it tries to invoke the page method a logon screen appears (I am using windows authentication), and it does not accept any id I enter.
Would moving the code for the webmethod to a separate code file in a subdirectory that allows all users work? or is it even possible.

Regards

]]> By: David Walker http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-36047 David Walker Wed, 05 Aug 2009 08:11:09 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-36047 Thanks, a pointer in the right direction was all I needed. Problem solved. Cheers! Thanks, a pointer in the right direction was all I needed. Problem solved. Cheers!

]]> By: Dave Ward http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-36039 Dave Ward Tue, 04 Aug 2009 16:33:05 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-36039 I'd suggest setting a breakpoint inside the page method and debugging. It could be a few things, but inspecting it at runtime will be the easiest way to figure it out. I’d suggest setting a breakpoint inside the page method and debugging. It could be a few things, but inspecting it at runtime will be the easiest way to figure it out.

]]> By: David Walker http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-36037 David Walker Tue, 04 Aug 2009 15:54:33 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-36037 Hi Dave, Thanks for an excellent post. I was just wondering, would it be possible to use SqlCacheDependency to invalidate the cache and then use a PageMethod to fire a postback if the cache was invalid? I have it so that when the cache is up to date, the page method fires fine and just waits another 5 seconds before trying again, but when I invalidate the cache, the OnFail method gets called (with methodName="myWebMethod" and userContext=null), do you have any idea as to why this may be? Thanks David Hi Dave,

Thanks for an excellent post.

I was just wondering, would it be possible to use SqlCacheDependency to invalidate the cache and then use a PageMethod to fire a postback if the cache was invalid?

I have it so that when the cache is up to date, the page method fires fine and just waits another 5 seconds before trying again, but when I invalidate the cache, the OnFail method gets called (with methodName=”myWebMethod” and userContext=null), do you have any idea as to why this may be?

Thanks
David

]]> By: Dave Ward http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-35882 Dave Ward Mon, 20 Jul 2009 20:53:37 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-35882 Unfortunately, you can't do that with this technique. The UpdatePanel doesn't allow for anything that granular. To accomplish that, you'd want to use something like a web service returning JSON and rendering each individual line on the client-side instead of server-side. Unfortunately, you can’t do that with this technique. The UpdatePanel doesn’t allow for anything that granular.

To accomplish that, you’d want to use something like a web service returning JSON and rendering each individual line on the client-side instead of server-side.

]]> By: dana http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-35880 dana Mon, 20 Jul 2009 19:32:41 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-35880 Hello, Thanks for this great post. I'd like to do a similar thing but add animation when adding new items (maybe fade in effect or fly-in or another animated effect). Can you please explain how I can do that? Thanks a lot! Dana Hello,

Thanks for this great post.
I’d like to do a similar thing but add animation when adding new items (maybe fade in effect or fly-in or another animated effect).
Can you please explain how I can do that?

Thanks a lot!
Dana

]]> By: Sıfırdan AJAX öğrenebileceğiniz 20 kaynak http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-35493 Sıfırdan AJAX öğrenebileceğiniz 20 kaynak Sat, 06 Jun 2009 09:59:38 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-35493 [...] web geliştirme konusunda bildiriler yayımlayan Dace Ward‘a ait bir blog. Site bünyesinde veri güncellemelerini gerçek zamanlı olarak görüntülemek ve interaktif veri araması için jQuery nasıl kullanılır gibi konuları irdeleyen pek çok [...] [...] web geliştirme konusunda bildiriler yayımlayan Dace Ward‘a ait bir blog. Site bünyesinde veri güncellemelerini gerçek zamanlı olarak görüntülemek ve interaktif veri araması için jQuery nasıl kullanılır gibi konuları irdeleyen pek çok [...]

]]> By: AJAX links « bnotezz http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-35438 AJAX links « bnotezz Sat, 30 May 2009 18:41:58 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-35438 [...] and Handling Events with ASP.NET AjaxASP.NET Ajax Web ServiceAsp.net Ajax Exception LoggingDisplay data updates in real-time with AJAXASP.NET Ajax Extender for multi-column widget drag & drop ASP.NET AJAX In-Depth: Object [...] [...] and Handling Events with ASP.NET AjaxASP.NET Ajax Web ServiceAsp.net Ajax Exception LoggingDisplay data updates in real-time with AJAXASP.NET Ajax Extender for multi-column widget drag & drop ASP.NET AJAX In-Depth: Object [...]

]]> By: Bob Zibranski http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-34940 Bob Zibranski Wed, 15 Apr 2009 19:17:54 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-34940 Thanks Dave, I'll give that a try! I really appreciate the response Thanks Dave,

I’ll give that a try! I really appreciate the response

]]> By: Dave Ward http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-34872 Dave Ward Fri, 10 Apr 2009 22:02:15 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-34872 If they're all stopping at the same time, it is probably something causing the Cache to expire. Maybe memory pressure (which automatically empties the Cache) or an app pool reset for some reason. For a long-polling implementation like that, I would definitely suggest using a more persistent data store, like a SQL Server Express database maybe. If they’re all stopping at the same time, it is probably something causing the Cache to expire. Maybe memory pressure (which automatically empties the Cache) or an app pool reset for some reason.

For a long-polling implementation like that, I would definitely suggest using a more persistent data store, like a SQL Server Express database maybe.

]]> By: Bob Zibranski http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-34865 Bob Zibranski Fri, 10 Apr 2009 04:49:31 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-34865 Thanks for the reply Dave! Yes, multiple clients are connected (3 kiosks) and no, no javascript errors pop up at all. From what i can tell, they do stop updating right around the same time (about 3 hours). Let me know what other questions i could answer for you. Thanks! Thanks for the reply Dave! Yes, multiple clients are connected (3 kiosks) and no, no javascript errors pop up at all. From what i can tell, they do stop updating right around the same time (about 3 hours). Let me know what other questions i could answer for you. Thanks!

]]> By: Dave Ward http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-34853 Dave Ward Thu, 09 Apr 2009 14:48:53 +0000 http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/#comment-34853 Are you seeing any JavaScript errors when it stops updating? Are multiple clients connected? If so, do they all stop updating at the same time? Are you seeing any JavaScript errors when it stops updating? Are multiple clients connected? If so, do they all stop updating at the same time?

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