TFS2010: Getting connected in new object model

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When starting up with TFS 2010 object model, there are few gotchas to be aware of (especially if you did coding for TFS OM 2005/2008 in the past). See my previous post for high-level details:

In 2008 one would establish connection to TFS as follows

   1 string[] servers = RegisteredServers.GetServerNames();

   2 

   3 // select one of the servers (in real life combo box?)

   4 string serverName = servers[0];

   5 

   6 TeamFoundationServer server = new TeamFoundationServer(serverName,

   7         new System.Net.NetworkCredential(userName, password));

   8 

   9 server.EnsureAuthenticated();

In Team Foundation Server 2010 the code becomes:

   1 RegisteredTfsCollection[] projects = RegisteredTfsConnections.GetProjectCollections();

   2 List<string> servers = new List<string>();

   3 foreach (RegisteredTfsCollection collection in collections)

   4 {

   5    if (!collection.Offline)

   6      results.Add(collection.Uri.ToString());

   7 }

   8 

   9 // select one of the servers (in real life combo box?)

  10 string serverName = servers[0];

  11

  12 TfsTeamProjectCollection server = new TfsTeamProjectCollection(new Uri(tfsServerName),

  13                 new System.Net.NetworkCredential(userName, password));

  14 

  15 server.EnsureAuthenticated();

Should be no big surprises considering the changes in 2010 – one server w\projects became multiple projects collections. One thing to be aware of is the change in the arguments you pass to constructor of TfsTeamProjectCollection; in 2005/2008 one was able to pass server name (i.e. “tfserver”) as retrieved by using RegisteredServers class. In 2010 that becomes impossible since the server may contain multiple collections; thus you have to pass full URI (e.g. “https://tfsserver:8080/tfs/DefaultCollection”).