How to get a specific build with the TFS API

asp.net-mvc-3, c#, tfs

Solution

The key to this scenario is to use the ID of the queued build. So what I did was:

    public int QueuBuild(string TeamProject, string BuildDefinition)
    {
        IBuildServer buildServer = (IBuildServer)Server.GetService(typeof(IBuildServer));
        IBuildDefinition def = buildServer.GetBuildDefinition(TeamProject, BuildDefinition);

        var queuedBuild = buildServer.QueueBuild(def);
        return queuedBuild.Id;
    }

Then in the polling method

    public string GetBuildStatus(string TeamProject, string BuildDefinition, int BuildID)
    {
        IBuildServer buildServer = (IBuildServer)Server.GetService(typeof(IBuildServer));

        string status = string.Empty;
        IQueuedBuildSpec qbSpec = buildServer.CreateBuildQueueSpec(TeamProject, BuildDefinition);

        IQueuedBuildQueryResult qbResults = buildServer.QueryQueuedBuilds(qbSpec);
        if(qbResults.QueuedBuilds.Length > 0)
        {
            IQueuedBuild build = qbResults.QueuedBuilds.Where(x => x.Id == BuildID).FirstOrDefault();
            status = build.Status.ToString();
        }

        return status;
    }

Hope this helps someone down the road.

Problem

I am trying to get a particular build from TFS but it is frustratingly difficult. I have an MVC application that triggers a build like this: ``` IBuildServer buildServer = (IBuildServer)Server.GetService(typeof(IBuildServer)); IBuildDefinition def = buildServer.GetBuildDefinition(TeamProject, BuildDefinition); var queuedBuild = buildServer.QueueBuild(def); ``` QueueBuild returns IQueuedBuild and I was hoping to do something like this: ``` return queuedBuild.Build.BuildNumber ``` So that I would have some unique value that I could use to query the build server with to get the correct build back. Unfortunately Build may or may not be null when execution exits this method so that is a no go. After the build is queued I then poll this method ``` public string GetBuildStatus(string TeamProject, string BuildDefinition, string BuildNumber) { string status = string.Empty; IBuildDetailSpec buildDetailSpec = buildServer.CreateBuildDetailSpec(TeamProject, BuildDefinition); buildDetailSpec.MaxBuildsPerDefinition = 1; buildDetailSpec.Status = BuildStatus.InProgress | BuildStatus.None; buildDetailSpec.QueryOrder = BuildQueryOrder.FinishTimeDescending; IBuildQueryResult queryResult = buildServer.QueryBuilds(buildDetailSpec); if (queryResult.Builds.Length > 0) { status = queryResult.Builds[0].Status.ToString(); } return status; } ``` This works to some degree but if there are multiple builds in the queue I have no way of knowing in this polling method if the build I am working with is the one I queued in the first method. Does anyone have any idea what I could do to get back the specific build that is Queued up in the first method? Thanks!

Original source