Specifying a list of items for the parameters with WorkItemStore.Query in TFS

Question

I've got the following WIQL query for a TFS project:

string query = "SELECT * FROM Issue WHERE [System.TeamProject] = @Project "+
                "AND [Assigned To] IN (@AssignedTo)";

Dictionary<string, object> parameters = new Dictionary<string, object>();
parameters.Add("Project","test");
parameters.Add("AssignedTo","'chris','tfsuser'");
WorkItemStore.Query(query, parameters);

This is being run via the .NET TFS API.

My problem is with the AssignedTo parameter. How is this meant to be specified? I've tried it as a string[], List<string> as well as with and without quotes as above. Each one doesn't seem to work.

Answer 1

I understand what you're trying to do, but it doesn't look like it's possible. The query that you want is this:

WHERE [System.AssignedTo] in ('John Smith', 'Jane Citizen')

Which is semantically the same as this:

WHERE [System.AssignedTo] = 'John Smith' OR [System.AssignedTo] = 'Jane Citizen'

The only way I can work out how to achieve it in code is by specifying the identities as separate parameters:

TfsTeamProjectCollection tfs = TfsTeamProjectCollectionFactory.GetTeamProjectCollection(new Uri("http://localhost:8080/tfs/"));
WorkItemStore wis = tfs.GetService<WorkItemStore>();

Dictionary<string, string> values = new Dictionary<string, string>();

values.Add("parameter1", "John Smith");
values.Add("parameter2", "Jane Citizen");

Query query = new Query(wis, "SELECT [System.Id] FROM WorkItems WHERE [System.AssignedTo] IN (@parameter1, @parameter2)", values);

WorkItemCollection workItems = wis.Query(query.QueryString);
WorkItem workItem = workItems[0];