如何修复 Asp.net MVC 中的编译器错误消息：CS1061？

Question

我正在使用 ASP.net MVC 5 和 Razor Engine。我想创建一个页面来注册用户。我为我的用户实体创建了一个模型和元数据模型。我所有的代码都在这里。我认为一切都很好，但我得到了这个编译错误：

Compiler Error Message: CS1061: 'NP1.ViewModels.RegisterVM' does not contain a definition for 'UserEmail' and no extension method 'UserEmail' accepting a first argument of type 'NP1.ViewModels.RegisterVM' could be found (are you missing a using directive or an assembly reference?)

谁能帮我解决一下？

控制器

[HttpGet]
    public ActionResult Register()
    {
        RegisterVM vm = new RegisterVM();
        vm.UserAddress = "";
        vm.UserBirthDate = DateTime.Now;
        vm.UserCellPhone = "";
        vm.UserEmail = "";
        vm.UserFirstName = "";
        vm.UserGender = "";
        vm.UserID = 1;
        vm.UserImage = "";
        vm.UserLastName = "";
        vm.UserPassWord = "";
        vm.UserStatus = 1;
        vm.UserTell = "";
        return View(vm);
    }

注册虚拟机

     public List<SocialNetwork> SocialNetworks { get; set; }
     public List<Footer> Footers { get; set; }
     public List<FooterMenu> FooterMenus { get; set; }
     public List<User> Users { get; set; }

Register.cs

    @model NP1.ViewModels.RegisterVM

    @{
      ViewBag.Title = "Register";
     }

  @using (Html.BeginForm()) 
   {
@Html.AntiForgeryToken()

<div class="form-horizontal">
    <h4>User</h4>
    <hr />
    @Html.ValidationSummary(true)

    <div class="form-group">
        @Html.LabelFor(model => model.UserEmail, new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.UserEmail)
            @Html.ValidationMessageFor(model => model.UserEmail)
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.UserFirstName, new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.UserFirstName)
            @Html.ValidationMessageFor(model => model.UserFirstName)
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.UserLastName, new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.UserLastName)
            @Html.ValidationMessageFor(model => model.UserLastName)
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.UserPassWord, new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.UserPassWord)
            @Html.ValidationMessageFor(model => model.UserPassWord)
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.UserCellPhone, new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.UserCellPhone)
            @Html.ValidationMessageFor(model => model.UserCellPhone)
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.UserTell, new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.UserTell)
            @Html.ValidationMessageFor(model => model.UserTell)
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.UserImage, new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.UserImage)
            @Html.ValidationMessageFor(model => model.UserImage)
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.UserAddress, new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.UserAddress)
            @Html.ValidationMessageFor(model => model.UserAddress)
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.UserStatus, new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.UserStatus)
            @Html.ValidationMessageFor(model => model.UserStatus)
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.UserBirthDate, new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.UserBirthDate)
            @Html.ValidationMessageFor(model => model.UserBirthDate)
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.UserGender, new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.UserGender)
            @Html.ValidationMessageFor(model => model.UserGender)
        </div>
    </div>

    <div class="form-group">
        <div class="col-md-offset-2 col-md-10">
            <input type="submit" value="Create" class="btn btn-default" />
        </div>
    </div>
</div>
 }

  <div>
    @Html.ActionLink("Back to List", "Index")
  </div>

Answer 1

您需要在您的*.cshtml 中使用YourNameSpace。 像这样：@using MyNameSpace.

此answer 可能会有所帮助。

Answer 2

错误是不言自明的。

您的 razor 视图被强类型化为 RegisterVM ，但它没有名为 UserEmail 的属性。在您的视图中，您正在尝试使用模型的 UserEmail 属性。

因此，使用视图所需的属性更新您的 RegisterVm 视图模型。

public class RegisterVM
{
  public string UserName {set;get;}
  public string UserFirstName {set;get;}
  public string UserLastName {set;get;}
  //Add other properties needed for the view.
}

或者

看起来UserMetaData 类具有视图所需的所有属性。因此，将您的模型类型类更改为UserMetaData。在这种情况下，您需要将此类的可见性从 internal 更改为 public。

@model UserMetaData
@using(Html.BeginForm())
{
  @Html.TextBoxFor(s=>s.UserEmail)
  <input type="submit" />
}