C# 两个查询，一个视图 目标

在单个视图中的两个查询之间迭代

问题 在我的应用程序中，有一个特定产品的比较列表。在页面顶部，有该产品的详细信息，如名称、最低/最高价格、照片和其他一些详细信息

我需要的是这样的东西：

@modelComparisonList List<MyApp.Models.Products>
@modelProduct MyApp.Models.Products

@{
    ViewBag.Title = "Comparing " + modelProduct.name;
}

<h1>There is @modelProduct.quantity products to compare</h1>   

<table>
    @foreach (var item in modelComparisonList)
    {
        <tr>
            <p>@item.productName</p>
        </tr>
        <tr>
            <p>@item.productPrice</p>
        </tr>
        <tr>
            <p>@item.marketName</p>
        </tr>
    }
</table>

public class Product
{
     public int Id { get; set; }

     public string Name { get; set; }

     public string MarketName { get; set; }

     public decimal Price { get; set; }

     // Other properties not mentioned above
}

public class ProductViewModel
{
     public IEnumerable<Product> Products { get; set; }

     public Product Product { get; set; }
}

public ActionResult Compare(int id)
{
     ProductViewModel viewModel = new ProductViewModel
     {
          Product = productRepository.GetBuId(id),
          Products = productRepository.GetAll()
     };

     return View(viewModel);
}

@model YourProject.ViewModels.Products.ProductViewModel

@{
     ViewBag.Title = "Comparing " + @Model.Product.Name;
}

<h1>There is @Model.Product.Quantity products to compare</h1>

<table>
     @foreach (var product in Model.Products)
     {
          <tr>
               <td>@product.Name</td>
          </tr>
          <tr>
               <td>@product.Price</td>
          </tr>
          <tr>
               <td>@product.MarketName</td>
          </tr>
     }
</table>

@modelcomparaisonlist列表
@modelProduct MyApp.Models.Products
@{
ViewBag.Title=“Comparing”+modelProduct.name；
}
有@modelProduct.quantity产品可供比较
@foreach（modelComparisonList中的变量项）
{
@item.productName

@产品价格

@item.marketName

}

你能理解我的情况吗

---

我不知道如何执行解决方案来解决此问题。有人能给我一个主意吗？

只需创建一个包含这两者的包装器类，即：

public class TheViewModel
{
    public List<MyApp.Models.Products> Item1 { get; set; }
    public MyApp.Models.Products Item2 { get; set; }
}

public类视图模型
{
公共列表项1{get；set；}
公共MyApp.Models.Products项2{get；set；}
}

是的，您可以通过使用视图模型来完成。视图模型用于表示视图上的数据。视图模型可以是多个模型的“串联”

下面是一些关于类和属性的提示

您的产品域模型如下所示：

@modelComparisonList List<MyApp.Models.Products>
@modelProduct MyApp.Models.Products

@{
    ViewBag.Title = "Comparing " + modelProduct.name;
}

<h1>There is @modelProduct.quantity products to compare</h1>   

<table>
    @foreach (var item in modelComparisonList)
    {
        <tr>
            <p>@item.productName</p>
        </tr>
        <tr>
            <p>@item.productPrice</p>
        </tr>
        <tr>
            <p>@item.marketName</p>
        </tr>
    }
</table>

public class Product
{
     public int Id { get; set; }

     public string Name { get; set; }

     public string MarketName { get; set; }

     public decimal Price { get; set; }

     // Other properties not mentioned above
}

public class ProductViewModel
{
     public IEnumerable<Product> Products { get; set; }

     public Product Product { get; set; }
}

public ActionResult Compare(int id)
{
     ProductViewModel viewModel = new ProductViewModel
     {
          Product = productRepository.GetBuId(id),
          Products = productRepository.GetAll()
     };

     return View(viewModel);
}

@model YourProject.ViewModels.Products.ProductViewModel

@{
     ViewBag.Title = "Comparing " + @Model.Product.Name;
}

<h1>There is @Model.Product.Quantity products to compare</h1>

<table>
     @foreach (var product in Model.Products)
     {
          <tr>
               <td>@product.Name</td>
          </tr>
          <tr>
               <td>@product.Price</td>
          </tr>
          <tr>
               <td>@product.MarketName</td>
          </tr>
     }
</table>

您的视图模型可能如下所示：

@modelComparisonList List<MyApp.Models.Products>
@modelProduct MyApp.Models.Products

@{
    ViewBag.Title = "Comparing " + modelProduct.name;
}

<h1>There is @modelProduct.quantity products to compare</h1>   

<table>
    @foreach (var item in modelComparisonList)
    {
        <tr>
            <p>@item.productName</p>
        </tr>
        <tr>
            <p>@item.productPrice</p>
        </tr>
        <tr>
            <p>@item.marketName</p>
        </tr>
    }
</table>

public class Product
{
     public int Id { get; set; }

     public string Name { get; set; }

     public string MarketName { get; set; }

     public decimal Price { get; set; }

     // Other properties not mentioned above
}

public class ProductViewModel
{
     public IEnumerable<Product> Products { get; set; }

     public Product Product { get; set; }
}

public ActionResult Compare(int id)
{
     ProductViewModel viewModel = new ProductViewModel
     {
          Product = productRepository.GetBuId(id),
          Products = productRepository.GetAll()
     };

     return View(viewModel);
}

@model YourProject.ViewModels.Products.ProductViewModel

@{
     ViewBag.Title = "Comparing " + @Model.Product.Name;
}

<h1>There is @Model.Product.Quantity products to compare</h1>

<table>
     @foreach (var product in Model.Products)
     {
          <tr>
               <td>@product.Name</td>
          </tr>
          <tr>
               <td>@product.Price</td>
          </tr>
          <tr>
               <td>@product.MarketName</td>
          </tr>
     }
</table>

你的观点可能是这样的：

@modelComparisonList List<MyApp.Models.Products>
@modelProduct MyApp.Models.Products

@{
    ViewBag.Title = "Comparing " + modelProduct.name;
}

<h1>There is @modelProduct.quantity products to compare</h1>   

<table>
    @foreach (var item in modelComparisonList)
    {
        <tr>
            <p>@item.productName</p>
        </tr>
        <tr>
            <p>@item.productPrice</p>
        </tr>
        <tr>
            <p>@item.marketName</p>
        </tr>
    }
</table>

public class Product
{
     public int Id { get; set; }

     public string Name { get; set; }

     public string MarketName { get; set; }

     public decimal Price { get; set; }

     // Other properties not mentioned above
}

public class ProductViewModel
{
     public IEnumerable<Product> Products { get; set; }

     public Product Product { get; set; }
}

public ActionResult Compare(int id)
{
     ProductViewModel viewModel = new ProductViewModel
     {
          Product = productRepository.GetBuId(id),
          Products = productRepository.GetAll()
     };

     return View(viewModel);
}

@model YourProject.ViewModels.Products.ProductViewModel

@{
     ViewBag.Title = "Comparing " + @Model.Product.Name;
}

<h1>There is @Model.Product.Quantity products to compare</h1>

<table>
     @foreach (var product in Model.Products)
     {
          <tr>
               <td>@product.Name</td>
          </tr>
          <tr>
               <td>@product.Price</td>
          </tr>
          <tr>
               <td>@product.MarketName</td>
          </tr>
     }
</table>

@model YourProject.ViewModels.Products.ProductViewModel
@{
ViewBag.Title=“比较”+@Model.Product.Name；
}
有@Model.Product.Quantity产品可供比较
@foreach（模型产品中的var产品）
{
@产品名称
@产品价格
@产品名称
}

---

我希望这有帮助。

侧记：将你的<代码>产品< /Cord>类改名为<代码>产品<代码> 1。标题SOfanatic只是一个例子，但是谢谢你的提示。在将来我会考虑它。@勒南，你是一个生病的小狗；太神了简单明了的回答。谢谢这正是我所做的，布伦丹。顺便说一句，谢谢你的贡献！