我在StackOverflow中找到的最接近的问题是我所拥有的 Posting data when my view model has a constructor does not work
模型
public class Customer
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
视图模型
public class CustomerViewModel
{
public Customer Customer { get; set; }
public CustomerViewModel(Customer customer)
{
Customer = customer;
}
}
控制器代码
public ActionResult CreateCustomer()
{
Customer c = new Customer();
CustomerViewModel cvm = new CustomerViewModel(c);
return View(cvm);
}
[HttpPost]
public ActionResult CreateCustomer(CustomerViewModel customer)
{
// do something here
}
查看代码
@model Blah.Models.CustomerViewModel
@{
ViewBag.Title = "CreateCustomer";
}
<h2>CreateCustomer</h2>
@using (Html.BeginForm())
{
<div class="editor-label">
@Html.LabelFor(model => model.Customer.FirstName)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Customer.FirstName)
@Html.ValidationMessageFor(model => model.Customer.FirstName)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Customer.LastName)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Customer.LastName)
@Html.ValidationMessageFor(model => model.Customer.LastName)
</div>
<p>
<input type="submit" value="Create" />
</p>
}
错误
解决错误但没有帮助的解决方案
问题
我想我需要一个自定义模型绑定器。不知道如何创建一个: - (
(或)
我想知道我在这里有哪些其他选择
答案 0 :(得分:2)
您需要添加无参数构造函数。
public class CustomerViewModel
{
public Customer Customer { get; set; }
public CustomerViewModel()
{
}
public CustomerViewModel(Customer customer)
{
Customer = customer;
}
}
您认为这是“不工作”的原因&#39;是另一个问题。您的模型有一个名为Customer
的属性,它是一个复杂类型,POST方法的参数也被命名为customer
(DefaultModelBinder
不区分大小写)。结果,绑定失败。您需要将参数名称更改为除某个属性的名称之外的任何名称,例如
[HttpPost]
public ActionResult CreateCustomer(CustomerViewModel model)