延迟加载和RequiredAttribute问题：XXX字段为必填

Comment

Author

public class Comment : IEquatable<Comment>
{
    public int ID { get; set; }

    [Required]
    public virtual User Author { get; set; }

    // More properties here
}

public virtual ActionResult Like(int id)
{
    var comment = _session.Single<Comment>(c => c.ID == id);
    comment.Likes++;

    _session.CommitChanges();

    return Json(new { comment.Likes });
}

Comment

Author

Include

context.Comments.Include(\"Author\").Single<Comment>(c => c.ID == id);

public virtual ActionResult Like(int id)
{

   var comment = _session.Single<Comment>(c => c.ID == id);
   comment.Likes++;

   if(TryUpdateModel(comment))
   {

       _session.CommitChanges();

   }
   return Json(new { comment.Likes });
}