Wednesday, March 21, 2012

partial rendering Post back error

Hi my application works fine in IE with partial rendering when posting back.

But When I use another Browser, some of pages are okay with partial rending, some of them I got the error message as below:


Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.

To me these pages seems no difference when applying partial rendering. All of them use same pattern when using UpdatePanel.

Help please.


I am afraid we cannot find out the exact root cause without further information captured when the problem occurs.

Why don't you provide us with some source codes of the pages that get error?

To troubleshoot this issue, we really need the source code to reproduce the problem, so that we can investigate the issue in house. It is not necessary that you send out the complete source of your project. We just need a simplest sample to reproduce the problem. You can remove any confidential information or business logic from it.

According to the error message,I guess the problem lies on adding controls dynamically, maybe you can checkDynamicaly loading User Controls into UpdatePanel for solution and more infomation.

Let me know if you need more info.

Hope this helps.

Thank you.

Hi, Thanks for reply.

This message comes out when using Safari to run AJAX application. This application works fine when using IE or Firefox.
The page loads many ascx dynamically and using UpdatePanel with RenderMode="Inline" UpdateMode="Conditional"

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