Question

我尝试搜索此问题，但无法找到解决方案，请帮助我：

我的viewModel：

namespace webShop.ViewModels.Home
{
    public class RegisterUserViewModel
    {
        public User User { get; set; }

        public UsersDetaile UsersDetaile { get; set; }

        public IEnumerable<state> state { get; set; }
    }
}

我的模特：

public partial class User
{
    public int Id { get; set; }
    public string Name { get; set; }
    public string Username { get; set; }
    public string Password { get; set; }
    public string Roles { get; set; }
    public byte Status { get; set; }

    public virtual UsersDetaile UsersDetaile { get; set; }
}

public partial class UsersDetaile
{
    public int userID { get; set; }
    public Nullable<System.DateTime> BirthDate { get; set; }
    public string Mobile { get; set; }
    public string Tell { get; set; }
    public bool Gender { get; set; }
    public byte city { get; set; }
    public byte state { get; set; }
    public string postCode { get; set; }
    public string address { get; set; }

    public virtual City City1 { get; set; }
    public virtual State State{ get; set; }
    public virtual User User { get; set; }
}

和我的控制员：

[HttpGet]
public ActionResult Register()
{ 
    OstanRepository stateRep = new OstanRepository();
    var model = new RegisterUserViewModel();
    model.state = stateRep.Select().ToList();
    return View(model);
}

[HttpPost]
public ActionResult Register(RegisterUserViewModel user)
{
   //My Code
}

和我的注册视图

@model webShop.ViewModels.Home.RegisterUserViewModel

@using (Ajax.BeginForm("Register", "Home", new AjaxOptions { HttpMethod = "Post", Url = "/Home/Register" }))
{

  @Html.AntiForgeryToken()
  @Html.ValidationSummary(true)
  <h1 class="block-header">Register</h1>
      <div class="group">
          <label class="label">Name <span class="required">*</span></label>
          <div class="controls">
              @Html.TextBoxFor(p => p.User.Name, new { @class = "text" })
              @Html.ValidationMessageFor(p => p.User.Name)
          </div>
      </div>

    //....

  <div class="group">
        <label class="label">Address </label>
        <div class="controls">
            @Html.TextBoxFor(p => p.UsersDetaile.address, new { @class = "text" })
            @Html.ValidationMessageFor(p => p.UsersDetaile.address)
        </div>
  </div>

  <div class="form">
    <div class="group">
        <div class="controls">
             <button class="button">Submit</button>
        </div>
    </div>
  </div>
}

按提交用户且 usersDetaile null 后，我该怎么办？

当然，如果我使用这个动作，那就麻烦了!!!

public ActionResult Register(User user)
{
    //...
}

我无法找到解决方案，请帮助我

Answer 1

我看错了，你必须将ViewModel传递给View，目前你只是将ViewModel的User属性传递给你的视图，这意味着你的视图被强类型化为User输入RegisterUserViewModel，这就是将操作参数更改为User时的原因：

[HttpGet]
public ActionResult Register()
{ 
    OstanRepository stateRep = new OstanRepository();
    var model = new RegisterUserViewModel();
    model.state = stateRep.Select().ToList();
    return View(model); // pass ViewModel to view not only User Model
}

并且您应该使用RegisterUserViewModel强烈输入您的视图：

将视图集模型设置为RegisterUserViewModel

@model webShop.ViewModels.Home.RegisterUserViewModel

Answer 2

绑定失败，因为POST方法参数名为user，而您的模型（RegisterUserViewModel）包含具有相同名称的属性（public User User { get; set; }）

将方法签名更改为

[HttpPost]
public ActionResult Register(RegisterUserViewModel model)

并且属性将被正确绑定。或者，您可以更改属性名称，但这意味着更新您的视图代码

`public User Person { get; set; }`

postback viewModel为null

2 个答案: