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Asp.net mvc ASP.NETMVC问题_Asp.net Mvc_Entity Framework_Linq To Entities - Fatal编程技术网

Asp.net mvc ASP.NETMVC问题

Asp.net mvc ASP.NETMVC问题,asp.net-mvc,entity-framework,linq-to-entities,Asp.net Mvc,Entity Framework,Linq To Entities,我在控制器上写了这样的东西 public ActionResult Giris() { ViewData["Tarif"] = (from t in _entities.Tarif join k in _entities.Kullanici on t.KID equals k.KID select new {KAdi = k.KAdi, TAd

我在控制器上写了这样的东西

   public ActionResult Giris()

    {

        ViewData["Tarif"] = (from t in _entities.Tarif

                             join k in _entities.Kullanici on t.KID equals k.KID

                             select new {KAdi = k.KAdi, TAdi = t.TAdi})

                             .Take(4);



        return View();

    }
我在查看页面中使用它,如下所示

<% foreach (var item in (IEnumerable<dynamic>)ViewData["Tarif"]) {  %>

<div class="begenilen-video" style="float:left">

<img class="video-resmi" alt="reklam" src="../../Uygulama/Resimler/Reklam/1.jpg" />

<span class="benzer-yemek-tarifi-adi"></span><%=item.TAdi %><br />

<span class="benzer-yemek-tarifi-ekleyen">Ekleyen: </span><br />

<span class="benzer-yemek-tarifi-izlenme">İzlenme: </span>

</div>

<% } %>


埃克莱恩:
İzlenme:
但是,我收到select语句中的错误。如何调用视图页面中的项

提前感谢。

作为猜测,因为您尚未发布错误:

存储在
ViewData[“Tarif”]
中的对象将属于
IQueryable
类型,其中T是匿名对象,在您的视图中,您将强制转换为
IEnumerable
<代码>IQueryable也是延迟加载的,因此一旦对象被释放,您将尝试执行查询

您应该真正创建一个强类型视图模型

public class ViewModelType {

  public IEnumerable<TarifType> Tarif { get; set; }

}
控制器

public ActionResult Giris() {

  var viewModel = new ViewModelType();

  viewModel.Tarif = (from t in _entities.Tarif
                       join k in _entities.Kullanici on t.KID equals k.KID
                       select new TraifType { KAdi = k.KAdi, TAdi = t.TAdi }
                     ).Take(4)
                     .ToList();

   return View(viewModel);
}
看法



埃克莱恩:
İzlenme:
public ActionResult Giris() {

  var viewModel = new ViewModelType();

  viewModel.Tarif = (from t in _entities.Tarif
                       join k in _entities.Kullanici on t.KID equals k.KID
                       select new TraifType { KAdi = k.KAdi, TAdi = t.TAdi }
                     ).Take(4)
                     .ToList();

   return View(viewModel);
}
<% foreach (var item in viewModel.Tarif) {  %>
  <div class="begenilen-video" style="float:left">
    <img class="video-resmi" alt="reklam" src="../../Uygulama/Resimler/Reklam/1.jpg" />
    <span class="benzer-yemek-tarifi-adi"></span><%=item.TAdi %><br />
    <span class="benzer-yemek-tarifi-ekleyen">Ekleyen: </span><br />
    <span class="benzer-yemek-tarifi-izlenme">İzlenme: </span>
  </div>
<% } %>