小编Rob*_*ung的帖子

所以我有一个名为index的视图,它列出了我数据库中的所有线程.然后在该视图中我加载了线程上的所有注释.当我打电话给我应该创建新评论的表单时,它会一直告诉我模型状态无效.它告诉我它无法从类型字符串转换为类型配置文件或注释或标记.最初我把它作为我的代码:

 public ActionResult AddComment(Thread thread, string commentBody)
    {
        if (ModelState.IsValid)
        {
            _repository.AddComment(thread, comment);
            TempData["Message"] = "Your comment was added.";
            return RedirectToAction("Index");
        }

然后我改为:

 public ActionResult AddComment(Thread thread, string commentBody)
    {
        Profile profile = _profileRepository.Profiles.FirstOrDefault(x => x.Id ==       thread.ProfileId);
        Tag tag = _tagRepository.Tags.FirstOrDefault(t => t.Id == thread.TagId);
        thread.ThreadTag = tag;
        thread.Profile = profile;
        Comment comment = new Comment()
                              {
                                  CommentBody = commentBody,
                                  ParentThread = thread
                              };
        if (ModelState.IsValid)
        {
            _repository.AddComment(thread, comment);
            TempData["Message"] = "Your comment was added.";
            return RedirectToAction("Index");
        }

这仍然告诉我模型状态无效.如何获得它以便它不会尝试改变状态？ …