asp.net mvc-c#mvc模型绑定嵌套列表

我的模型绑定出现问题。这里有以下型号：

public class RoomScan
{
    public RoomScan() { }
    public RoomScan(Guid id)
    {
        Room_ID = id;
        Assets = new List<AssetScanModel>();
    }
    //public Guid Soll_ID { get; set; }
    public Guid Room_ID { get; set; }
    public List<AssetScanModel> Assets { get; set; }
    [Display(Name = "Barcode", ResourceType = typeof(Dictionary))]
    public string Barcode { get; set; }
    [Display(Name = "RFID", ResourceType = typeof(Dictionary))]
    public string RFID { get; set; }
}
public class AssetScanModel
{
    public AssetScanModel(Asset asset)
    {
        Asset = asset;
        Scanned = false;
        CheckIn = false;
    }
    public Asset Asset { get; set; }
    [Display(Name = "Scanned", ResourceType = typeof(Dictionary))]
    public bool Scanned { get; set; }
    [Display(Name = "CheckIn", ResourceType = typeof(Dictionary))]
    public bool CheckIn { get; set; }
}

视图确实列出了所有资产：

using (Html.BeginForm("Scan", "Inventory", FormMethod.Post))
{
Html.HiddenFor(rs => rs.Room_ID);
Html.HiddenFor(rs => rs.Assets);
<div>
    <div class="editor-label">Barcode</div>
    <div class="editor-field"><input type="text" name="Barcode" value="@Model.Barcode" /></div>
</div>
<div>
    <div class="editor-label">RFID</div>
    <div class="editor-field"><input type="text" name="Barcode" value="@Model.RFID" /></div>
</div><br />

@for (int i = 0; i < Model.Assets.Count; i++)
{
    <tr>
        <td>@Html.DisplayFor(asm => asm.Assets[i].Asset.InventoryNumber)</td>
        <td>@Html.DisplayFor(asm => asm.Assets[i].Asset.Description)</td>
        <td>@Html.DisplayFor(asm => asm.Assets[i].Asset.Manufacturer)</td>
        <td>@Html.DisplayFor(asm => asm.Assets[i].Asset.Model)</td>
        <td>@Html.DisplayFor(asm => asm.Assets[i].Asset.SerialNumber)</td>
        <td>@Html.DisplayFor(asm => asm.Assets[i].Scanned)</td>
        <td>@Html.DisplayFor(asm => asm.Assets[i].CheckIn)</td>
    </tr>
}

我添加了"Asset[I]"，因为我在某个地方读到它有助于默认模型绑定器正确绑定（不起作用）

我的问题是：在我的控制器中：

[HttpPost]
    public ActionResult Scan(RoomScan toVerify)

列表为空（不是null）。我知道这与模型活页夹有关，但我不熟悉如何更改它，所以它确实有效。