这code是正确的，问题是，我没有将我的应用我的个人资料。阿呆想念，但我的想法是，整个事情是不良记录。我有离线访问另一个问题，但这是一个不同的职位。

This code was right, the problem was that I had not added my application to my profile. Dumb miss, but my thought is that the whole thing is poorly documented. I have another issue with offline access, but that is for a different post.

string apiKey = "XXXXXXXXX";
string apiSecret = "XXXXXXXXXXXX";
Facebook.Session.ConnectSession._connectSession = new Facebook.Session.ConnectSession(apiKey, apiSecret);
if (_connectSession.IsConnected)
{
    Facebook.Rest.Api api = new Facebook.Rest.Api(_connectSession);
    string response = api.Stream.Publish("Test", null, null, null, api.Users.Session.UserId);
}