How can I programmatically check-out an item for edit in TFS?

Question

I\'m working on a utility processing files being under source control using TFS 2010.

If an item is not yet checked-out for edit, I\'m getting an exception, what is

Answer 1

var registerdCollection = RegisteredTfsConnections.GetProjectCollections().First();
var projectCollection = TfsTeamProjectCollectionFactory.GetTeamProjectCollection(registerdCollection);
var versionControl = projectCollection.GetService();

var workspaceInfo = Workstation.Current.GetLocalWorkspaceInfo(_fileName);
var server = new TeamFoundationServer(workspaceInfo.ServerUri.ToString());
var workspace = workspaceInfo.GetWorkspace(server);

workspace.PendEdit(fileName);