mvc post复杂模型

Question

你好我试图编辑/添加我的复杂模型，我有一个问题，我的模型：

public partial class NodeLoc
{
    public int NodeId { get; set; }
    public string Title { get; set; }
    public string Brief { get; set; }
    public string Details { get; set; }

    public virtual Node Node { get; set; }
}

public partial class Node
{
    public int NodeId { get; set; }
    public int TypeId { get; set; }
    public Nullable<int> CatId { get; set; }
    public Nullable<int> AlbumId { get; set; }
    public System.DateTime PostDate { get; set; }
    public string ImageUrl { get; set; }
}

我的控制器

[HttpPost]
    public ActionResult Create(NodeLoc entity, int typeId, HttpPostedFileBase ImageUrl)
    {
        ModelState.Remove("NodeId");
        if (ModelState.IsValid)
        {
            Node node = entity.Node;
            node.TypeId = typeId;
            node.CatId = entity.Node.CatId; //cant read
            node.AlbumId = entity.Node.AlbumId; //cant read
            node.PostDate = DateTime.Now;
            node.ImageUrl = ImageResizer.SaveImage("Uploads/Node", ImageUrl);

            db.Nodes.Add(node);
            db.NodeLocs.Add(entity);
            db.SaveChanges();
            return RedirectToAction("Create", new { isSuccess = true, typeId = typeId });

        }
        return View(entity);
    }

和我的观点

@model MvcCms.Models.NodeLoc
@Html.HiddenFor(model => model.NodeId)
@Html.HiddenFor(model => model.Node.CatId)
@Html.HiddenFor(model => model.Node.AlbumId)

我的问题是：在帖子中我无法读取此值：model.Node.CatId或model.Node.AlbumId