SharePoint 2013 and RadAjaxManager - full postback

Hi,

I'm experiencing a weird problem related to RadAjaxManager on a SharePoint 2103 layout page. From time to time (it seems quite random) "ajaxified" buttons (i.e. the ones under control of RadAjaxManager) issue a full postback instead of a partial AJAX request. As a result, values entered on a form (in text boxes, drop-down lists etc) are lost because the entire page is pull out from the server. This is a really bad user experience.

I did my research and it seems that disabling Forms Authentication in IIS of my SharePoint web application fixes the issue. The question is why does it fix the problem and what are the drawbacks of disabling Forms Authentication. I have to explain that to my client.

Thanks,

Leszek

August 24th, 2015 7:40pm

Hi Leszek,

If your web application can't use the Forms Authentication, you can disable it.

Here is a hotfix which seems to fix this issue.

https://support.microsoft.com/en-us/kb/2910943

I suggest you use the latest Cumulative Update for the SharePoint 2013 and try whether it works.

http://blogs.technet.com/b/stefan_gossner/archive/2015/07/14/july-2015-cu-for-sharepoint-2013-is-available-for-download.aspx

Best Regards,

Dennis

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August 26th, 2015 5:49am

Thanks Dennis for your response.

From the links you sent me I can infer that this is a known issue (a bug) that Microsoft has fixed in SharePoint Foundation 2013. Unfortunately, we are using SharePoint Server 2013 and I can't find any information if it has been fixed in the Server edition of SharePoint 2013.

Thanks,

Leszek

August 26th, 2015 9:42am

Hi Leszek,

You can try to update the latest Cumulative Update for the SharePoint 2013.

Or try to create a normal .Net application and test whether it works.

Best Regards,

Dennis

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August 26th, 2015 9:23pm

Hi Dennis,

I will definitely deploy the latest update for SharePoint 2013.

In the meantime it turned out that I can't simply turn off Forms Authentication on our production server. When I did that and navigated to our SharePoint site, I received a message: "Sorry, this site hasn't been shared with you.". This is a very bad news as turning off Forms Authentication is the only method I know would work for sure.

I have already created a normal ASP.NET application with exactly the same code. It's working fine. The problem is only when I use the code on a SharePoint page.

Thanks,

Leszek

August 27th, 2015 1:10pm

Unfortunately, the latest SharePoint cumulative update did not solve the problem we were experiencing.

Any other suggestions?

Thanks,

Leszek

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September 2nd, 2015 9:29pm

Hi,

I have found this thread dealing with a very similar issue we are experiencing:

https://social.msdn.microsoft.com/Forums/office/en-US/c33d4a46-87d6-4dbc-a24c-cb8e5f9eb1ea/page-refresh-after-postback-from-updatepanel-in-sharepoint-2013?forum=sharepointdevelopment#9b71f035-9cee-4dc5-aedb-92fea132b0bb

A difference is that the above thread deals with the ASP.NET UpdatePanel, not the RadAjaxManager. The two controls are similar.

Microsoft even issued a fix for this problem:

https://support.microsoft.com/en-us/kb/2910943

In a description we read: "Issues that this hotfix package fixes: When you browse to a SharePoint 2013 page that contains an UpdatePanel control, the page may be refreshed randomly. Therefore, if you type something in a text field on the page, the text field may become empty."

The problem is that the fix is for SP 2013 Foundation but we are using SP 2013 Server.

Any chance there will be (or maybe there is) a hot fix for the same problem but for SP 2013 Server?

Thanks,

Leszek

September 3rd, 2015 3:21pm

Hi,

Could I receive an answer to my question? Currently, we are working on a real-life project and the problem in SharePoint causes very poor user experience (loss of data). We are considering dropping SharePoint all together and advice our client not to use it.

Thanks,

Leszek

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September 14th, 2015 4:56pm

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