C# 如何在LinkedIn中添加帖子评论？

在过去的一周里，我试图在LinkedIn中添加帖子评论

我已经写了这个代码

    protected void Page_Load(object sender, EventArgs e)
    {
        string xmlContent = "<?xml version='1.0' encoding='UTF-8'?>";
        xmlContent += "<comment><text>Check out</text></comment>";
        byte[] databytes = Encoding.Default.GetBytes(xmlContent);

        var credentials = new Hammock.Authentication.OAuth.OAuthCredentials
        {
            Type = OAuthType.AccessToken,
            SignatureMethod = OAuthSignatureMethod.HmacSha1,
            ParameterHandling = OAuthParameterHandling.HttpAuthorizationHeader,
            ConsumerKey = "*********",
            ConsumerSecret = "*********",
            Token = "*********",
            TokenSecret = "*********",
            Version = "1.0"
        };

        var client = new Hammock.RestClient() { Authority = "http://api.linkedin.com/v1/posts" };
        var request = new Hammock.RestRequest() { Path = "/56787878/comments", Method = Hammock.Web.WebMethod.Post, Timeout = new TimeSpan(0, 0, 5), Credentials = credentials };
        request.AddHeader("Content-Type", "application/xml");
        client.AddParameter("","");
        client.AddPostContent(Encoding.UTF8.GetBytes(xmlContent));
        //request.AddPostContent(Encoding.UTF8.GetBytes(xmlContent));
        var response = client.Request(request);
        Response.Write(response.Content);
     }

受保护的无效页面加载（对象发送方，事件参数e）
{
字符串xmlContent=“”；
xmlContent+=“签出”；
byte[]databytes=Encoding.Default.GetBytes（xmlContent）；
var credentials=new Hammock.Authentication.OAuth.OAuthCredentials
{
Type=OAuthType.AccessToken，
SignatureMethod=OAuthSignatureMethod.HmacSha1，
ParameterHandling=OAuthParameterHandling.HttpAuthorizationHeader，
ConsumerKey=“**********”，
ConsumerCret=“**********”，
令牌=“**********”，
TokenSecret=“**********”，
Version=“1.0”
};
var client=new Hammock.RestClient（）{Authority='http://api.linkedin.com/v1/posts" };
var request=new Hammock.RestRequest（）{Path=“/567878/comments”，Method=Hammock.Web.WebMethod.Post，Timeout=new TimeSpan（0,0,5），Credentials=Credentials}；
AddHeader（“内容类型”、“应用程序/xml”）；
client.AddParameter（“，”）；
AddPostContent（Encoding.UTF8.GetBytes（xmlContent））；
//AddPostContent（Encoding.UTF8.GetBytes（xmlContent））；
var response=client.Request（请求）；
Response.Write（Response.Content）；
}

我在下面的Xml格式中得到一个错误

 <?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>
 <error>  
 <status>400</status>
 <timestamp>1374494502579</timestamp>
 <request-id>QM4MYPEKJJ</request-id>  
 <error-code>0</error-code>
 <message>Couldn't parse message document: error: Unexpected end of file after null</message>\n</error>

400
1374494502579
QM4TYPEKJJ
0
无法分析消息文档：错误：null后文件意外结束\n

---

有人处理这个错误吗？提前谢谢。

这些代币在这里安全吗？谢谢，我已经修改了代币