There is one scenario,
1. Create a list or library in SharePoint 2010.
2. Open the list / library in SharePoint Designer.
3. Close and hide the XSLTListView Web part on the page.
4. Insert a DataForm web part on the page.
The page is working fine in SharePoint 2010 but once you migrate the site from SharePoint 2010 to SharePoint 2013 and If the list contains a large number of columns or custom XSL has been applied to the DataForm web part the following error message may be displayed:
"Unable to display this Web Part. To troubleshoot the problem, open this Web page in a Microsoft SharePoint Foundation-compatible HTML editor such as Microsoft SharePoint Designer. If the problem persists, contact your Web server administrator."
You can also see System.StackOverflowException errors in the SharePoint log.
In SharePoint 2013, Microsoft has reduced the timeout for XSLT transformation from 5 seconds to 1 second without giving the administrator the option of increasing it manually via Powershell. The reduction is a securtity measure to reduce the risk of successfull DoS attacks. .
The timeout essentially causes any modified XSLTListViewWebPart and XSLTDataViewWebParts to error intermittently when viewed in the browser.
We can fix the above error using Powershell script.
Below script is used to make the change to the Timeout value. Changing it to 5 seconds worked for us and the webparts are now showing fine.
PowerShell to set XsltTransformTimeOut
$farm = Get-SPFarm
$farm.XsltTransformTimeOut = 5
$farm.Update()
1. Create a list or library in SharePoint 2010.
2. Open the list / library in SharePoint Designer.
3. Close and hide the XSLTListView Web part on the page.
4. Insert a DataForm web part on the page.
The page is working fine in SharePoint 2010 but once you migrate the site from SharePoint 2010 to SharePoint 2013 and If the list contains a large number of columns or custom XSL has been applied to the DataForm web part the following error message may be displayed:
"Unable to display this Web Part. To troubleshoot the problem, open this Web page in a Microsoft SharePoint Foundation-compatible HTML editor such as Microsoft SharePoint Designer. If the problem persists, contact your Web server administrator."
You can also see System.StackOverflowException errors in the SharePoint log.
In SharePoint 2013, Microsoft has reduced the timeout for XSLT transformation from 5 seconds to 1 second without giving the administrator the option of increasing it manually via Powershell. The reduction is a securtity measure to reduce the risk of successfull DoS attacks. .
The timeout essentially causes any modified XSLTListViewWebPart and XSLTDataViewWebParts to error intermittently when viewed in the browser.
We can fix the above error using Powershell script.
Below script is used to make the change to the Timeout value. Changing it to 5 seconds worked for us and the webparts are now showing fine.
PowerShell to set XsltTransformTimeOut
$farm = Get-SPFarm
$farm.XsltTransformTimeOut = 5
$farm.Update()
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