WIQL query to get all item under a workitem

Question

I am looking for a query where i can return all work items and their relation from a area path.

for example : project 1

i need all Featured all Userstories mapped to it all workitem and Bug mapped to userstories,

in short if i took a bug from the object i need somthing like parent id where i can match with the userstory.

string query1 = " SELECT * FROM WorkItemLinks " +
                    " WHERE ( [System.IterationPath] Under 'iteration1' )" +
                    " AND ([System.Links.LinkType] = 'System.LinkTypes.Hierarchy-Forward' )" +
                    " ORDER BY [Microsoft.VSTS.Scheduling.StartDate]";

which throwing an error like below

An exception of type 'Microsoft.TeamFoundation.WorkItemTracking.Client.ValidationException' occurred in Microsoft.TeamFoundation.WorkItemTracking.Client.dll but was not handled in user code

Additional information: TF51005: The query references a field that does not exist. The error is caused by «[System.IterationPath]».

when i checked the dll's are refereed correctly and when i re wrote the query like this the query is working fine

 string query = " SELECT * FROM WorkItems"+
                           " WHERE  ( [System.IterationPath] Under 'iteration1' )" +
                           //" AND  ([System.State] = 'Active' OR  [System.State] = 'Assessed' ) "+
                           //" AND  ( [Microsoft.VSTS.Scheduling.StartDate] <= '09/13/2017' AND  [Microsoft.VSTS.Scheduling.FinishDate] >= '09/13/2017' )"+
                           " ORDER BY [Microsoft.VSTS.Scheduling.StartDate]";

but this query result does not give the relation ship that if a work item mapped as a child to other i need parent id in the work item object. how to get that. Thanks in advance.

Answer 1

You can try below query:

Install Nuget Package Microsoft.TeamFoundationServer.ExtendedClient for the project.

using Microsoft.TeamFoundation.Client;
using Microsoft.TeamFoundation.WorkItemTracking.Client;
using System;

namespace _0925_WIQL
{
    class Program
    {
        static void Main(string[] args)
        {
            TfsTeamProjectCollection tpc = new TfsTeamProjectCollection(
                  new Uri("http://server:8080/tfs/CollectionLC"));
            WorkItemStore workItemStore = (WorkItemStore)tpc.GetService(typeof(WorkItemStore));


            string query1= " SELECT * FROM WorkItemLinks " +
                    " WHERE ( Source.[System.IterationPath] Under 'TeamProject\\Iteration 1' )" +
                    " AND ([System.Links.LinkType] = 'System.LinkTypes.Hierarchy-Forward' )" +
                    " ORDER BY [Microsoft.VSTS.Scheduling.StartDate]";

            Query query = new Query(workItemStore, query1);
            WorkItemLinkInfo[] witLinkInfos = query.RunLinkQuery();

            foreach (WorkItemLinkInfo witinfo in witLinkInfos)
            {

                .......
            }

Besides, you can also use Wiql Editor. If you want to get all the parent workitems (IDs) from a specific child work item (ID), you can use below WIQL:

SELECT                      
        [System.Id],
        [System.WorkItemType],
        [System.Title],
        [System.AssignedTo],
        [System.State]
FROM workitemLinks
WHERE ([System.Links.LinkType] = 'System.LinkTypes.Hierarchy-Forward')
AND ([Target].[System.Id] = 25)
ORDER BY [System.Id]
MODE (Recursive, ReturnMatchingChildren)