ASP.net MVC4：在局部视图使用不同的模式？ [英] ASP.net MVC4: Using a different model in a partial view?

问题描述

我刚学ASP.net MVC所以请容忍我，如果我在解释我的问题不好。

I am just learning ASP.net MVC so please bear with me if I am bad at explaining my issue.

是否有可能在比什么是被继承视图中的局部视图使用不同的模型？

Is it possible to use a different model in a partial view than what is being inherited in the view?

我的看法首页目前继承 LoginModel ，它与用户的授权交易。一旦用户被授权，我想在首页显示的待办事项列表的用户。 待办事项通过LINQ检索。

My view Index currently inherits LoginModel, which deals with the authorization of users. Once a user is authorized, I want the Index to display the list of todos the user has. todos are retrieved via LINQ.

所以，我的局部视图要继承 System.Web.Mvc.ViewPage＆LT;＆IEnumerable的LT; todo_moble_oauth.Models.todo＆GT;＆GT; ，但我得到一个错误，当我使用这样的：'传递到字典中的模型产品类型

So my partial view wants to inherit System.Web.Mvc.ViewPage<IEnumerable<todo_moble_oauth.Models.todo>>, but I get an error when I use this: `The model item passed into the dictionary is of type

System.Data.Linq.DataQuery`1[todo_moble_oauth.Models.todo]', but this dictionary requires a model item of type 'todo_moble_oauth.Models.LoginModel'

这是我的首页视图

<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<todo_moble_oauth.Models.LoginModel>" %>

<section id="loginForm">
    <% if (Request.IsAuthenticated) { %>

        <% Html.RenderPartial("_ListTodos"); %>

    <% } else { %>

        <h1>Todo Mobile</h1>

        <blockquote>Easily store your list of todos using this simple mobile application</blockquote>

        <% using (Html.BeginForm()) { %>
            <%: Html.AntiForgeryToken() %>
            <%: Html.ValidationSummary(true) %>

                    <%: Html.LabelFor(m => m.UserName) %>
                    <p class="validation"><%: Html.ValidationMessageFor(m => m.UserName) %></p>
                    <%: Html.TextBoxFor(m => m.UserName) %>

                    <%: Html.LabelFor(m => m.Password) %>
                    <p class="validation"><%: Html.ValidationMessageFor(m => m.Password) %></p>
                    <%: Html.PasswordFor(m => m.Password) %>

                    <label class="checkbox" for="RememberMe">
                        <%: Html.CheckBoxFor(m => m.RememberMe) %>
                        Remember Me?
                    </label>

            <input type="submit" value="Login" />
        <% } %>
    <% } %>
</section>

我的局部视图 _ListTodos 如下：

<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<IEnumerable<todo_moble_oauth.Models.todo>>" %>

<% foreach (var item in Model) { %>
      <%: Html.DisplayFor(modelItem => item.title) %>
      <%: Html.DisplayFor(modelItem => item.description) %>
<% } %>

我的 LoginModel 有以下几点：

public class LoginModel
{
    [Required]
    [Display(Name = "User name")]
    public string UserName { get; set; }

    [Required]
    [DataType(DataType.Password)]
    [Display(Name = "Password")]
    public string Password { get; set; }

    [Display(Name = "Remember me?")]
    public bool RememberMe { get; set; }
}

的的HomeController 指数（）方法：

    [AllowAnonymous]
    public ActionResult Index()
    {
        // if user is logged in, show todo list
        if (Request.IsAuthenticated)
        {
            //var currentUser = Membership.GetUser().ProviderUserKey;
            todosDataContext objLinq = new todosDataContext();
            var todos = objLinq.todos.Select(x => x);
            return View(todos);
        }
        return View();
    }

任何帮助是极大AP preciated，谢谢。

Any help is greatly appreciated, thanks.

推荐答案

当然，你可以做到这一点：

Sure you can do that:

<% Html.Partial("_ListTodos", userTodos); %>

通过 userTodos 作为参数传递给偏帮手。

Pass the userTodos as a parameter to the Partial helper.

你得到的错误是因为你返回待办事项列表索引页/视图与返回查看（待办事项）; 的<$ C内$ C>首页操作方法。索引页需要 LoginModel 对象而不是TODO对象的的IEnumerable 。

The error you're getting is because you're returning a list of todos to the Index page/view with return View(todos); inside the Index action method. The Index page needs a LoginModel object instead of an IEnumerable of todo objects.

<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master"
    Inherits="System.Web.Mvc.ViewPage<todo_moble_oauth.Models.LoginModel>" %>

---

要解决这个问题，你需要改变的方式你传递了待办事项虽然。由于您的首页页收到 LoginModel ，您可以添加托多斯属性，这个类是这样的：

---

To solve this, you need to change the way you're passing the todos though. Since your Index page receives a LoginModel, you can add a Todos property to this class like this:

[Required]
[Display(Name = "User name")]
public string UserName { get; set; }

[Required]
[DataType(DataType.Password)]
[Display(Name = "Password")]
public string Password { get; set; }

[Display(Name = "Remember me?")]
public bool RememberMe { get; set; }

public IEnumerable<todo_moble_oauth.Models.todo> Todos { get; set; }

然后，修改您的索引操作方法：

and then, modify your Index action method:

[AllowAnonymous]
public ActionResult Index()
{
    // if user is logged in, show todo list
    if (Request.IsAuthenticated)
    {
        //var currentUser = Membership.GetUser().ProviderUserKey;
        todosDataContext objLinq = new todosDataContext();
        var todos = objLinq.todos.Select(x => x);

        LoginModel model = new LoginModel();
        model.Todos = todos;

        return View(model);
    }

    return View();
}

在视图中，做到这一点：

In the view, do this:

<% Html.Partial("_ListTodos", Model.Todos); %>

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