ASP.NET MVC2 RenderAction 使父级松散 ViewModel 上下文

Question

我是我的项目浏览器页面，我有 2 个子元素需要它们自己的控制器（而不仅仅是用户控件） - 上传和文件浏览器，因此我使用 Html.RenderAction(Action, Controller, param) 添加了它们。

然而问题是，浏览页面需要 ProjectViewModel，而上传使用 UploadViewModel 等。因此，通过使用这些 Html.RenderAction 元素，浏览页面似乎立即停止接收 ProjectViewModel - 我猜它会切换到 VM最后一个 RenderAction 的值。

我必须在路由中设置一些东西来确保这些已经强类型化的视图保留它们的上下文吗？

用代码更新：

另外，也许我必须明确声明要“上传”的模型是不同的？我不知道。

浏览器（包含上传和文件浏览器）：

<%@ 
Page Title="" 
Language="C#" 
Inherits="System.Web.Mvc.ViewPage<CKD.Web.Files.ViewModels.ProjectViewModel>"
MasterPageFile="~/Views/Project/Project.Master" 
%>

<asp:Content runat="server" ID="Main" ContentPlaceHolderID="MainContent">
    <table>
<tr>
<td id="upload" style="width: 180px" class="ui-widget ui-widget-content ui-corner-all">
    <% Html.RenderAction("Index", "Upload", new {id = Model.Project.Id}); %>
</td>
<td id="fileBrowser" style="width: auto" class="ui-widget ui-widget-content ui-corner-all">
    <% Html.RenderAction("Index", "FileBrowser", new {id = Model.Project.Id}); %>
</td>
</tr>
</table>
</asp:Content>

上传视图：

<%@ 
Page Title="" 
Language="C#" 
Inherits="System.Web.Mvc.ViewPage<CKD.Web.Files.ViewModels.UploadViewModel>" 
MasterPageFile="~/Views/Shared/Control.master"
%>
<%@ Import Namespace="System.IO" %>

<asp:Content runat="server" ID="Scripts" ContentPlaceHolderID="Scripts">
</asp:Content>

<asp:Content runat="server" ID="Main" ContentPlaceHolderID="MainContent">
<div class="uploadControl" style="Margin: 8px">
<h2 style="Margin-Bottom: 0px">Upload</h2>
<hr />

<div id="accordion" style="display: block;">
    <h3><a href="#">Files</a></h3>
    <div>
        <div class="ui-widget-content ui-corner-all" style="min-height: 80px; margin: 4px">
            <% if(Model.Files != null) %>
                <% foreach(FileInfo f in Model.Files) {%>
                    <p><%= f.Name %></p>
                    <hr />
                <% } %>
        </div>
        <ul style="width: 10px; list-style-type:none">
            <li class="ui-widget ui-widget-button ui-corners-all">Clear</li>
            <li class="ui-widget ui-widget-button ui-corners-all">Add</li>
        </ul>
    </div>
    <h3><a href="#">Transmittal</a></h3>
    <div>
        <p>File here</p>
        <p style="width: auto; margin: 8px" class="ui-widget-button">Pick File...</p>
    </div>
    <h3><a href="#">Notification</a></h3>
    <div>
        <p>
        Stuff
        </p>
    </div>
</div>
<div>
<div class="ui-widget ui-corner-all ui-widget-active">Upload Files</div>
</div>

</div>
</asp:Content>

上传控制器：

using System.Web.Mvc;

namespace CKD.Web.Files.Controllers
{
    using System.Linq;
    using Models;
    using ViewModels;

    public class UploadController : Controller
    {
        private ICKDClientAreaRepository Repository { get; set; }
        private UploadViewModel _viewModel;

                        private UploadViewModel ViewModel
    {
        get { return _viewModel ?? (_viewModel = ViewModel = UploadViewModel.Default(Repository)); }
        set { _viewModel = value; }
    }

                    public UploadController(ICKDClientAreaRepository repository)
    {
        Repository = repository;
    }

        // GET
        public ActionResult Index(int id)
        {
            var project = Repository.Projects.Single(x => x.Id == id);
            ViewModel = UploadViewModel.ForProject(project, Repository);

            return View(ViewModel);
        }
    }
}

上传虚拟机：

namespace CKD.Web.Files.ViewModels
{
    using System;
    using System.Collections.Generic;
    using System.IO;
    using System.Linq;
    using System.Web.Security;
    using Models;

    public class UploadViewModel
    {
        public Project Project { get; set; }
        public DirectoryInfo Directory { get; set; }
        public User Uploader { get; set; }
        public DateTime Time { get; set; }

        public List<FileInfo> Files { get; set; }
        public FileInfo Transmittal { get; set; }

        public List<User> NotificationList { get; set; }

                        public static UploadViewModel Default(ICKDClientAreaRepository fromRepository)
    {
        var project = fromRepository.Projects.First();

        return ForProject(project, fromRepository);
    }

                                                                public static UploadViewModel ForProject(Project project, ICKDClientAreaRepository fromRepository)
    {
        var dir = project.DirectoryName;
        var uploader = fromRepository.Users.Single(x => x.Username == Membership.GetUser().UserName);
        var time = DateTime.Now;
        var notification = project.Users.ToList();

        return new UploadViewModel
        {
            Project = project,
            Directory = new DirectoryInfo(dir),
            Uploader = uploader,
            Time = time,
            NotificationList = notification
        };
    }
    }
}

Answer 1

尝试将 RenderAction() 渲染的视图设为分部视图。

您还应该使用 [ChildActionOnly] 属性装饰该操作，以防止它自己执行（当有人请求 http://xxx.com/Upload/Index 时） 。