如何使用Team Foundation的库来计算统一差异？

我想计算比较两个文档的统一差异 。 （差异是用电子邮件发送的，维基百科说统一差异是最好的纯文本差异格式。）

Team Foundation有一个命令行界面

> tf diff /format:unified alice.txt bob.txt - Alice started to her feet, + Bob started to her feet, 

（ https://gist.github.com/hickford/5656513上的示例文件）

很棒，但出于通常的原因，我宁愿使用库而不是启动外部进程。

搜索MSDN，我发现Team Foundation有一个.NET库Microsoft.TeamFoundation.VersionControl 。 但是，文档没有给出任何计算差异的例子。

如何使用Team Foundation库计算统一差异？

编辑：我尝试了方法Difference.DiffItems但它没有工作 – 文件diff.txt被留空。

 var before = @"c:alice.txt"; var after = @"c:bob.txt"; var path = @"c:diff.txt"; using (var w = new StreamWriter(path)) { var options = new DiffOptions(); options.OutputType = DiffOutputType.Unified; options.StreamWriter = w; Difference.DiffFiles( before, FileType.Detect(before, null), after, FileType.Detect(after, null), options ); } Console.WriteLine(File.ReadAllText(path)); 

  var diff = Difference.DiffFiles( before, FileType.Detect(before, null), after, FileType.Detect(after, null), options); while (diff != null){ //DO What you like with the diff(s) diff = diff.Next; }