Question

我正在尝试将ModelView变量从控制器传递给视图，但是不幸的是，视图不允许我访问变量。我在下面提到代码。

这是ViewModel：

public class AuctionViewModels
{
    public List<Auction> AllAuction { get; set; }

    public List<Auction> PromotedAuction { get; set; }
}

这是Controller动作，它将数据传递到View：

public ActionResult Index()
    {
        AuctionViewModels vmodel = new AuctionViewModels();
        vmodel.AllAuction = service.GetAllAuction();     //If we need to send more then 1 model to views
        vmodel.PromotedAuction = service.GetPromotedAuction();
        return View(vmodel);
    }

这是视图：

@model List<DealDouble.Web.ViewModels.AuctionViewModels>

        @foreach (var auction in Model.AllAuction )
        {
                    <a href="#"><img class="card-img-top" src="http://placehold.it/700x400" alt=""></a>
        }

这是错误：

CS1061: 'List<AuctionViewModels>' does not contain a definition for 
'AllAuction' and no extension method 'AllAuction' accepting a first 
argument of type 'List<AuctionViewModels>' could be found (are you missing 
a using directive or an assembly reference?)

有人可以告诉我我实际上在做什么错吗？

Answer 1

更改

@model List<DealDouble.Web.ViewModels.AuctionViewModels>

收件人

@model DealDouble.Web.ViewModels.AuctionViewModels

那么您将可以foreach(var auction in Model.AllAuction)

Answer 2

您在行中有错误：

@model List<DealDouble.Web.ViewModels.AuctionViewModels>

您通过（作为模型）类，而不是列表。列表不包含诸如AllAuction之类的属性。尝试将此行替换为这一行：

@model DealDouble.Web.ViewModels.AuctionViewModels

Answer 3

应该只是

@model DealDouble.Web.ViewModels.AuctionViewModels

您只传入该对象的一个实例，然后遍历AllAuction属性。

Answer 4

您要实例化包含两个字段的单个对象，这两个字段都是列表：

    AuctionViewModels vmodel = new AuctionViewModels();
    vmodel.AllAuction = service.GetAllAuction();     /
    vmodel.PromotedAuction = service.GetPromotedAuction();

但是将其视为视图中的列表

@model List<DealDouble.Web.ViewModels.AuctionViewModels>

您需要将以上内容更改为：

 @model DealDouble.Web.ViewModels.AuctionViewModels

然后您可以遍历两个字段

@foreach (var auction in Model.AllAuction ){}
@foreach (var auction in Model.PromotedAuction ){}

MVC ViewModels-无法访问从控制器传递给View的对象/变量

4 个答案: