AJAX :: Update Panel Is Very Slow?

Aug 11, 2010

I have, what i think is a very simple updatepanel setup. I have searched and found other similar issues, but they date back to 2008 and 2009. Is the fix provided back then the only known fix now? Is there any other fixes or things.

[URL]

And here is my aspx code:

[Code]....

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AJAX :: Update Panel Fast In Debugger But Slow When Published?

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I know it's not the best practice to do, but unfortunately I created a page with multiple large dropdown lists and have them inside an ajax updatepanel. I found some work arounds using siderite's ajax updatepanel adapter:
http://fastlistadapter.codeplex.com/.

The performance is very good while I am debugging on my machine, but when I publish the site and post it to a win 2003 server the performance drops off almost as bad as when the fix isn't there.


I understand that using a 3rd party fix really isn't supported by most, but is there any obvious reason why debug performance would be much better than published site performance on the same exact code?

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I'm writing an app in which user can register. While registering the one may choose several options and according to these regiester fields are visible or not and are required or not. I came up with an idea that all fields will be in in the updatePanel and when users changes registration options I would set visibility of these fields on the server side.

It works but incredibly slow and whats more on the FF I have the given error:

The state information is invalid for this page and might be corrupted

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Each field is in dl tag with runat="server>

I had to do it like that cause for "required" option I simply add css class to this dl (need in in javascript validation. If field should be visible I set visible="false" for given dl and then that field for example FirstName with title and so on isn visible after postback.

Am I doing something wrong ? Why does it take so long (~4 min on localhost) and in firefox it doesnt really work (when I use debug I think that process completes without errors on ff, I dont understand that at all :)

If update Panel is so weak what would be other option to change visibility and adding required class to all dls. Logic is quite complicated and has to make query to DB so simple javascript would be quite tricky.

Oh and I'm using ASP.Net and cant upgrade on this project.

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[code]...

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[Code]....

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[Code]....

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[Code]....

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[code]....

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Above is my code to call a hidden DIV:

[Code]....

And above the html for the DIV:

[Code]....

on Code behind:

[Code]....

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I am having a weird issue with the update panels. I have an update panel in UpdateMode = Conditional . I have a dropdown list and a grid view..the gridview has to be updated √ĖnSelectionChanged event on the dropdown.

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[Code]....

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