public UserList VerifyCredentials(string format, string apiToken, string apiTokenSecret) { SinaApiService myApi = new SinaApiService(); string myResult = myApi.VerifyCredentials(format, consumerKey, consumerKeySecret, apiToken, apiTokenSecret); XDocument doc = XDocument.Parse(myResult); //return UserList.Parse(doc); return UserList.Parse(doc.Root); }