找不到 OAuth2 参数

我正在尝试使用 OAuth 2.0 来授权 google docs API， 根据谷歌给出的例子https://developers.google.com/google-apps/documents-list/#authorizing_requests_with_oauth_20 https://developers.google.com/google-apps/documents-list/#authorizing_requests_with_oauth_20他们正在使用这段代码：

// OAuth2Parameters holds all the parameters related to OAuth 2.0.
      OAuth2Parameters parameters = new OAuth2Parameters();

      // Set your OAuth 2.0 Client Id (which you can register at
      // https://code.google.com/apis/console).
      parameters.ClientId = CLIENT_ID;

      // Set your OAuth 2.0 Client Secret, which can be obtained at
      // https://code.google.com/apis/console.
      parameters.ClientSecret = CLIENT_SECRET;

      // Set your Redirect URI, which can be registered at
      // https://code.google.com/apis/console.
      parameters.RedirectUri = REDIRECT_URI;

      ////////////////////////////////////////////////////////////////////////////
      // STEP 3: Get the Authorization URL
      ////////////////////////////////////////////////////////////////////////////

      // Set the scope for this particular service.
      parameters.Scope = SCOPE;

      // Get the authorization url.  The user of your application must visit
      // this url in order to authorize with Google.  If you are building a
      // browser-based application, you can redirect the user to the authorization
      // url.
      string authorizationUrl = OAuthUtil.CreateOAuth2AuthorizationUrl(parameters);

问题是，当我尝试使用此代码时，它说找不到 OAuth2Parameters 我正在使用两者Google.GData.Client; & Google.GData.Documents;

来这里做什么？？

要使用OAuth2Parameters类你必须检查库的源代码并自己构建它：

http://code.google.com/p/google-gdata/source/checkout http://code.google.com/p/google-gdata/source/checkout

该类将包含在即将发布的 2.0 版库中。