如何在视图中结合两个模型（ASP.net MVC）[重复]

This question already has an answer here:

这个问题在这里已有答案:

The model item passed into the dictionary is of type .. but this dictionary requires a model item of type 4 answers

传递到字典中的模型项是类型..但是这个字典需要类型4答案的模型项

Two model have combined to exist in view

两种模式结合在一起存在于视野中

1.~/Products.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ShoppingStore.Domain.Entities
{
    public class Product
    {
        public int ProductID { get; set;}
        public string Name { get; set; }
        public string Description { get; set; }
        public decimal Price { get; set;  }
        public string Category { get; set; }
    }
}

2.~/PorductListViewModel.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

using ShoppingStore.Domain.Entities;

namespace ShoppingStore.WebUI.Models
{
    public class ProductsListViewModel
    {
        public IEnumerable<Product> Products { get; set; }
        public PagingInfo PageInfo { get; set; }
        public string CurrentCategory { get; set; }
    }
}

3.control ~/ProductController.cs public ViewResult List(string category , int page=1)

3.control~ / ProductController.cs public ViewResult List(string category,int page = 1)

{
            ProductsListViewModel model = new ProductsListViewModel
            {
               Products = repository.Products.Where(p => category ==null || p.Category ==category).OrderBy(p => p.ProductID).Skip((page - 1) * PageSize).Take(PageSize),
                PageInfo = new PagingInfo {CurentPage = page,ItemPerPage = PageSize,TotalItems = category == null ? repository.Products.Count() : repository.Products.Where(e => e.Category == category).Count()},
                CurrentCategory = category
            }; 
            return View(model);
}

i use this way Multiple models in a view

我用这种方式在视图中的多个模型

and add two model in one model

并在一个模型中添加两个模型

1.~/MainPageModel.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using ShoppingStore.Domain.Entities;

namespace ShoppingStore.WebUI.Models
{
    public class MainPageModel
    {
        public ProductsListViewModel ProductsListViewModel { get; set; }
        public Product Product { get; set; }
    }
}

and chnage code like below

和chnage代码如下

~/List.cshtml

@model ShoppingStore.WebUI.Models.MainPageModel

@{
    ViewBag.Title = "Prodcuts";

}
@foreach (var p in Model.PorductListViewModel.Products)
{

 @Html.Partial("ProductSummary",p)
}


<div>
    @Html.PageLinks(Model.PorductListViewModel.PageInfo, x => Url.Action("List", new { page = x , category = Model.PorductListViewModel.CurrentCategory }))
</div>

<div>
         @using (Html.BeginForm())
         {

            <div >
                @Html.HiddenFor(x => x.Product.ProductID)
                @Html.Hidden("returnUrl", Request.Url.PathAndQuery)
                <input type="submit" value="Add to cart" />
            </div>

            <div>
                <div id='DIV2'><input type="button" onclick="incrementValue1()" value="ADD" /></div>
                <div id="DIV2"> <input type="text" id="number1" value="0" /></div>
                <div id="DIV2"><input type="button" onclick="decrementValue1()" value="minus" /></div>
            </div>
            <button id="checkvalue" onclick="checkValue()" type="submit">Check</button>
         </div>

    }

When Running , IIS have below error message .

运行时,IIS有以下错误消息。

The model item passed into the dictionary is of type 'ShoppingStore.WebUI.Models.ProductsListViewModel', but this dictionary requires a model item of type 'ShoppingStore.WebUI.Models.MainPageModel'.

传递到字典中的模型项的类型为“ShoppingStore.WebUI.Models.ProductsListViewModel”,但此字典需要“ShoppingStore.WebUI.Models.MainPageModel”类型的模型项。

why have this error message

为什么会出现此错误消息

1 个解决方案

#1

Its seems you are returning wrong model to view "@model ShoppingStore.WebUI.Models.MainPageModel".

它似乎是你返回错误的模型来查看“@model ShoppingStore.WebUI.Models.MainPageModel”。

Your Code looks good but you need to check your controller return view details its should be like :

您的代码看起来不错,但您需要检查您的控制器返回视图详细信息,它应该是:

public ActionResult ViewAction()
{

MainPageModel objMainPageModel = new MainPageModel();
objMainPageModel.ProductsListViewModel = new ProductsListViewModel();
objMainPageModel.ProductsListViewModel= //Bind this model as well

//Bind Data in objMainPageModel and return to view
return View("List", objMainPageModel)

}

#1