MVC 5 ERROR但是这个字典需要一个类型为'System.Collections.Generic.IEnumerable的模型项

时间:2017-03-01 20:13:40

标签: c# asp.net-mvc

我是Ninjet和Mvc的新手。我知道这个错误意味着我将错误的类型传递给视图。但我无法弄清楚错误在哪里。这是我的课程

 public class ProdListViewModel
{
    public ProdListViewModel()
    {
        this.ProductsList = new List<ProdViewModel>();
    }
    public ProdListViewModel(List<product> products)
    {
        this.ProductsList = new List<ProdViewModel>();

        foreach (var prod in products)
        {
            this.ProductsList.Add(new ProdViewModel(prod));


        }

    }

    public List<ProdViewModel> ProductsList { get; set; }
}

 public class ProdViewModel
{
    [Key]
    public int productsID { get; set; }

    [Required]
    [StringLength(50)]
    public string pname { get; set; }

    public ProdViewModel()
    {
    }

    public ProdViewModel(product product)
    {
        productsID = product.productsID;
        pname = product.pname;

    }
}
这是我的控制。如你所见,我正在使用ninjet。我检查我正在返回产品列表中的2个产品。但是

    public class ProductController : ControllerBase
{
     internal readonly IProductRepository productRepository;


     public ProductController(IProductRepository productRepository)
    {
        this.productRepository = productRepository;
    }
    // GET: Product
    public ActionResult FrontPageList()

    {

//这里我从存储库中获取产品,只带2个             var product = productRepository.Products.Take(2).OrderBy(p =&gt; p.productsID).ToList();

        return View(new ProdListViewModel(product));
    }
}

这是我由VS生成的视图

@model IEnumerable<SalesRep.Domain.ViewModels.TuscanyWeb.ProdListViewModel>

@{
    ViewBag.Title = "FrontPageList";
}

<h2>FrontPageList</h2>

<p>
    @Html.ActionLink("Create New", "Create")
</p>
<table class="table">
    <tr>
        <th></th>
    </tr>

@foreach (var item in Model) {
    <tr>
        <td>
            @Html.ActionLink("Edit", "Edit", new { /* id=item.PrimaryKey */ }) |
            @Html.ActionLink("Details", "Details", new { /* id=item.PrimaryKey */ }) |
            @Html.ActionLink("Delete", "Delete", new { /* id=item.PrimaryKey */ })
        </td>
    </tr>
}

</table>

这是完整的错误 传递到字典中的模型项的类型为“SalesRep.Domain.ViewModels.TuscanyWeb.ProdListViewModel”,但此字典需要类型为“System.Collections.Generic.IEnumerable”1 [SalesRep.Domain.ViewModels.TuscanyWeb]的模型项。 ProdListViewModel]'

另一方面,如果在控制器I中,

//List<ProdViewModel> basicObjectList =
        //     product.ConvertAll(x => new ProdViewModel
        //     {
        //         pname = x.pname,
        //          productsID = x.productsID
        //     });

并将basicObjectList传递给视图我工作正常。

1 个答案:

答案 0 :(得分:0)

您不需要@model IEnumerable<SalesRep.Domain.ViewModels.TuscanyWeb.ProdListViewModel>,只需@model SalesRep.Domain.ViewModels.TuscanyWeb.ProdListViewModel。然后,在你的for循环中,就这样做:

@foreach (var item in Model.ProductsList ) {