访问模型内​​的对象传递给ASP.NET MVC 3中的Razor View

Question

我的啤酒模型有啤酒厂对象，但是当我在视图中时，我无法访问啤酒厂的属性。 Intellisense似乎认为我可以访问brewery属性，但DisplayFor方法不会打印任何内容。

@model BeerRecommender.Models.Beer

@{
ViewBag.Title = "Details";
}

<h2>@Html.DisplayFor(model => model.Name)</h2>

<fieldset>
<legend>Details</legend>

<div class="display-label">Style: @Html.DisplayFor(model => model.Style.Name)</div>
<div class="display-label">Brewery: @Html.DisplayFor(model => model.Brewery.Name)</div>

</fieldset>

以下是Beer类：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ComponentModel.DataAnnotations;
using BeerRecommender.Models.ViewModels;

namespace BeerRecommender.Models
{
public class Beer
{
    [Key]
    public int BeerID { get; set; }

    public ICollection<City> Cities { get; set; }

    public ICollection<Tag> Tags { get; set; }

    public Style Style { get; set; }

    public string Name { get; set; }

    public Brewery Brewery { get; set; }
}

......这是Brewery类：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.ComponentModel.DataAnnotations;

namespace BeerRecommender.Models
{
public class Brewery
{
    [Key]
    public int BreweryID { get; set; }

    public string Name { get; set; }

    public ICollection<Beer> Beers { get; set; }

    public City City { get; set; }
}
}

Answer 1

你是如何加载Beer类的？如果这是来自实体框架，则需要在加载代码中调用.Include（o =＆gt; o.Brewery）以包含该表。假设是EF 4.1，否则你需要像.Include（＆＃34; Brewery＆＃34;）这样的字符串名称，如果在4.0中