如何使用SignalR更新特定文章的评论部分？

Question

想要仅在用户正在查看的文章上获得评论的更新。

Controller:
public void CommentAdded(string commentid, string username, string articleid)
        {
            Clients.Client(articleid).ArticleAdded(articleid, username);
        }


Script:
conn.client(articleid).articleAdded = function (commentid, username, articleid) {
        // code to append item to GUI
    };