Adding Recursive Folders to TFS using C#

Add reference to two dlls

Microsoft.TeamFoundation.Client.dll
Microsoft.TeamFoundation.VersionControl.Client.dll

Include following assemblies,

using Microsoft.TeamFoundation.Client;
using Microsoft.TeamFoundation.Framework.Client;

Authenticating TFS

// Providing URL, UserName and Password
TfsTeamProjectCollection tpc = new TfsTeamProjectCollection(new Uri(tfsURL), new                          System.Net.NetworkCredential(userName,password));

// Checking Authentication
tpc.EnsureAuthenticated();

// Getting Version Control instance
VersionControlServer versionControl = tpc.GetService<VersionControlServer>();