问如何访问嵌套模型中的DisplayNameFor

EN

public class Invoice
{
    public int InvoiceId { get; set; }
    public string CustomerName { get; set; }
    public string Contact { get; set; }
    public IList<InvoiceItem> InvoiceItems { get; set; }
}

public class InvoiceItem
{
    public int InvoiceItemId { get; set; }
    public int InvoiceId { get; set; }
    [Display(Name = "Item Heading")]
    public string Item { get; set; }
    [Display(Name = "Item Description")]
    public string Description { get; set; }
    public virtual Invoice Invoice { get; set; }
}

     @foreach (var item in Model.InvoiceItems)
     {
          @Html.DisplayFor(modelItem => item.Item)
          <br />
          @Html.DisplayFor(modelItem => item.Description)
          <br />
     }  

@Html.DisplayNameFor(modelItem => modelItem.Item)