如何解决在 ASP.NET MVC 中绑定嵌套对象 - Razor
我的 ASP.NET MVC 视图模型设计如下
public class Customer
{
public int CustomerId{ get; set; }
public string CustomerName{ get; set; }
public Address CustomerAddress {get;set;}
}
public class Address
{
public int AddressId{ get; set; }
public string HouseName{ get; set; }
public string Location{get;set;}
}
如何在 cshtml 页面中正确绑定 Address 对象,使其在表单提交后可用。
@model CustomerManagement.Model.viewmodels.Customers.Customer
@using (Html.BeginForm())
{
@Html.EditorFor(model => model.CustomerName,new { htmlAttributes = new { @class = "form-
control readOnlySchdCode",@readonly = "readonly" } })
@Html.Hidden("AddressId",Model.Address.AddressId)
@Html.Hidden("HouseName",Model.Address.HouseName)
}
在控制器表单中提交将如下所示
public async Task<ActionResult> AddCustomer(Customer model)
{
//How can i access Address properties eg:model.CustomerAddress.AddressId??
}
任何人都可以分享有关如何使用剃刀模板在 cshtml 中正确绑定上述视图模型以及如何在表单提交时在 Action 方法中正确检索属性的示例代码。
解决方法
这是一个小例子
public class BigViewModel : IModelOptions
{
public bool Confirm { get; set; }
public SmallViewModel SmallView { get; set; }
}
public class SmallViewModel
{
public string Stuff{ get; set; }
}
public interface IModelOptions
{
SmallViewModel SmallView { get; set; }
}
我们的控制器就像
public class HomeController : Controller
{
public ActionResult Index()
{
return View();
}
[HttpPost]
public ActionResult Index(BigViewModel model)
{
var smallVIewModelInfo = model.SmallView.Stuff;
var bigViewModelConfirm = model.Confirm;
return View();
}
}
使用类似视图
@model MvcApplication1.Models.BigViewModel
,
你可以试试这个。
客户端:
@using Newtonsoft.Json.Linq
@using WebAppDemo.Models
@model WebAppDemo.Models.Customer
@{
ViewData["Title"] = "Home Page";
}
@{
ViewBag.Title = "Home Page";
}
<br />
@using (Html.BeginForm("AddCustomer","Home",FormMethod.Post,new { id = "Form1" }))
{
<div class="row">
<div class="col-lg-2">Cust Id</div>
<div class="col-lg-10">
@Html.TextBoxFor(a => a.CustomerId,new { @class = "form-control" })
</div>
</div>
<br />
<div class="row">
<div class="col-lg-2">Customer Name</div>
<div class="col-lg-10">
@Html.TextBoxFor(a => a.CustomerName,new { @class = "form-control" })
</div>
</div>
<br />
<div class="row">
<div class="col-lg-2">Address</div>
<div class="col-lg-10">
@Html.TextBoxFor(a => a.CustomerAddress.HouseName,new { @class = "form-control" })
</div>
</div>
<br />
<div class="row">
<div class="col-lg-12"><input type="submit" value="Submit" class="btn btn-primary"></div>
</div>
}
表单输出应该是这样的:
控制器:
[HttpPost] //attribute to get posted values from HTML Form
public ActionResult AddCustomer(Customer model)
{
return Ok();// For testing I just kept it as `Ok` You can return `View()`;
}
注意:请尝试按照 Model property
描述在表单上传递值。除了你可能
获得 null
值。
输出:
希望能帮到你。如果您有任何进一步的疑虑,请告诉我。
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