title: VSTS: Query all work items for a given Feature
body: <p>Is it possible to extract a list all work items and bugs for a given feature in VSTS? I do not see a "Parent ID" or similar that I can search after.</p>
  
  <p>The thing is that I would like to use the query for a "Work item" tile on the dash-board displaying the number of bugs and work items for this specific feature.</p>
  
  <p>The work-around is to annotate all bugs and work items with a tag and then filter on that, but it is a manual step that I would like to avoid.</p>
  
  <p>Thanks :-)</p>