MVC.Net綁定複雜模型？

Question

我有以下代碼和現有客戶。 我需要創建一個創建訂單的表單，並將其傳遞給我的控制器。

我試着將該頁面上的模型類型更改爲Order而不是Customer，但後來我必須傳遞Order對象，或者至少是OrderId。

模型

public class Customer 
{ 
    public int Id { set; get; } 
    public string FirstName { set; get; } 
    public string LastName { set; get; } 
    public List<Order> Orders { get; set;} 
} 

public class Order 
{ 
    public int Id { set; get; } 
    public string ItemName { set; get; } 
    public DateTime SomeDate { set; get; } 
} 

控制器

public class OrderController : Controller 
{ 
    [HttpPost] 
    public Create ActionResult(Customer customer) 
    { 
     // Customer doesn't have the values that it suppose to have 
     // All fields including the array of orders are null 
     customerStorage.UpdateOrders(customer); 

     return ("ItemListPartial", customer.orders); 
    } 
} 

查看

@model Company.Application.Model.Customer; 

@using (Ajax.BeginForm(new AjaxOptions { UpdateTargetId = "result" })) 
{ 
    // How can I bind this to Order object ? 
    // I can't define model as Order, because then I need to pass Customer Separately 
    @Html.TextBoxFor(o => o.Orders[0].ItemName) 
    @Html.TextBoxFor(o => o.Orders[0].SomeDate) 
    <input type="submit" value="Add" /> 
} 

Answer 1

我想你在尋找什麼這個博客文章介紹： ASP.NET MVC Wire Format for Model Binding to Arrays, Lists, Collections, Dictionaries

從博客

報價：

如果簽名是這樣的：

public ActionResult Blah(IDictionary<string, Company> stocks) { 
    // ... 
} 

，我們在HTML給出這樣的：

<input type="text" name="stocks[0].Key" value="MSFT" /> 
<input type="text" name="stocks[0].Value.CompanyName" value="Microsoft Corporation" /> 
<input type="text" name="stocks[0].Value.Industry" value="Computer Software" /> 
<input type="text" name="stocks[1].Key" value="AAPL" /> 
<input type="text" name="stocks[1].Value.CompanyName" value="Apple, Inc." /> 
<input type="text" name="stocks[1].Value.Industry" value="Consumer Devices" /> 

這是這樣的：

stocks[0].Key = "MSFT" 
stocks[0].Value.CompanyName = "Microsoft Corporation" 
stocks[0].Value.Industry = "Computer Software" 
stocks[1].Key = "AAPL" 
stocks[1].Value.CompanyName = "Apple, Inc." 
stocks[1].Value.Industry = "Consumer Devices" 

然後就好像我們有wr伊頓：

stocks = new Dictionary<string, Company>() { 
    { "MSFT", new Company() { CompanyName = "Microsoft Corporation", Industry = "Computer Software" } }, 
    { "AAPL", new Company() { CompanyName = "Apple, Inc.", Industry = "Consumer Devices" } } 
}; 

Answer 2

這IMO是如何你應該處理這樣的：在您的viewbag

通行證的customerID如果你真的不想做一個視圖模型（附：它是確定做一個視圖模型）

public class OrderController : Controller 
{ 
    public ActionResult Create(int customerID) 
    { 
     ViewBag.CustomerID = customerID 
     Order ord = new Order(o); 
     return View(ord); 
    } 
} 

您的POST方法：

[HttpPost] 
public ActionResult Create(int CustomerID, Order order) 
{ 
    //create your order 
} 

您CSHTML

@model Company.Application.Model.Order; 

@using (Ajax.BeginForm(new AjaxOptions { UpdateTargetId = "result" })) 
{ 
    @Html.TextBoxFor(o => o.ItemName) 
    @Html.TextBoxFor(o => o.SomeDate) 
    @Html.Hidden("CustomerID",ViewBag.CustomerID) 
    <input type="submit" value="Add" /> 
}