TFS2010 Query - Find Orphan Tasks?

I'm using the MSF Agile 5.0 project template.

I'm looking to modify 开发者_Go百科the Product Backlog query to include tasks that have no parents. The query currently only shows User Stories.

I don't see a field to query against such as parent item id or similar.

Has anyone done this?

Why are you looking to include tasks? The product backlog is to prioritize the User stories. If you want to plan on tasks, then use the Iteration backlog.

To achieve this result you can use the "Work items and direct links" type of query. Then in the 'top grid' specify the work item type = "task" and in the 'bottom grid' specify the work item type = 'user story. Then change the linking filter to "only return items that do not have the specified links"