ముఖ్యమైన నవీకరణ: Waldek Mastykarz has posted a workaround here: http://blog.mastykarz.nl/inconvenient-sharepoint-2010-content-query-web-part-anonymous-access/.
</నవీకరణ అంతం>

ఈ వారం, my team and I were upgrading a customer’s public internet site from MOSS to SP 2010. The MOSS site uses the CQWP in several places.

మేము ఖచ్చితత్వాన్ని నిర్ధారించడానికి సవివరమైన విధానం ద్వారా వెళ్ళింది, quality and all that good stuff. Despite that, we ran into a problem in the 11th hour that we didn’t expect or uncover until very late. ముఖ్యంగా, our CQWP wouldn’t render for anonymous users. It rendered find for the authors (who were logged in), but it wouldn’t show the content for anonymous users.

We did a lot of research and these are the parameters and actions we took to isolate the behavior:

• CQWP would render fine when it was pulling content from a custom list.
• CQWP would render content from the /Pages library.
• It would not render content from /SiteCollectionImages
• We created a new document library and uploaded a few docs to it. We did not add any content types to the library – this was a simple out of the box doc lib with no customization. Existing CQWP could not read from it.
• We created a new page and added a CQWP to it using all default values. it would not render for anonymous.
• We (somewhat hastily) set up a new SP 2010 పర్యావరణం, straight out of the box again and replicated this behavior.

బాటమ్ లైన్, it appears that CQWP in SP2010 can’t render content for anonymous users when the data source is a document library. Can this be true?

This is the error that we saw in the logs:

Web Part title: Content Query Web Part 653d91fb-2f83-4e6a-83af-1f39e8939f0a
07/30/2010 12:03:56.90 w3wp.exe (0x0F30) 0x1540 SharePoint Foundation Web Parts 89a1 High Error while executing web part: System.NullReferenceException: ఆబ్జెక్ట్ సూచన ఒక వస్తువు యొక్క సందర్భానికి సెట్ కాదు. at Microsoft.SharePoint.Publishing.WebControls.ContentByQueryWebPart.SetDocumentIconUrlAndOnClickString(SPWeb web, DataRow row, String strDefaultItemOpen, Boolean fSetDocIcon, Boolean fSetOnClick, String fileRefColumnRef, String progIdColumnRef, String fsobjTypeColumnRef, String permMaskColumnRef) at Microsoft.SharePoint.Publishing.WebControls.ContentByQueryWebPart.PreProcessForDocumentIconAndOnClickAttribute() at Microsoft.SharePoint.Publishing.WebControls.ContentByQueryWebPart.AddContentQueryData() at Microsoft.SharePoint.Publishing.WebControls.ContentByQueryWebPart.GetXPathNavigator(String viewPath) at Microsoft.SharePoint.WebPartPages.DataFormWebPart…. 653d91fb-2f83-4e6a-83af-1f39e8939f0a

It just seems kind of impossible that CQWP wouldn’t work for anonymous users. If you know any more about this, వ్యాఖ్యను పోస్ట్ చెయ్యండి.

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నా బ్లాగ్ సబ్స్క్రయిబ్.

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