使用自己的布局控制器渲染局部视图

Question

A part of my master layout has a dropdown menu that contains a link to a modal panel for some user settings. 我的主版式的一部分有一个下拉菜单，其中包含一些用户设置的模式面板链接。 I'm not sure how to do this, but so far I've tried the following: 我不确定如何执行此操作，但到目前为止，我已经尝试了以下操作：

UserController.cs UserController.cs

public class UserController : Controller
{
    //
    // GET: /UserProfile/

    [ChildActionOnly]
    public ActionResult UserProfile(string user)
    {
        ViewBag.UserName = user;
        return View();
    }
}

UserProfile.cshtml UserProfile.cshtml

<h4>
    Modal Header
</h4>

<p class="help-block">Dummy text</p>
<hr>
@ViewBag.UserName

_Layout.cshtml _Layout.cshtml

<html>
 ....
<head>...</head>
<body>
<div id="menu">
    <li class="userlinks">
        <ul class="dropdown-menu">
            <li><a data-toggle="modal" href="#usrmodal">View Profile <i class="pull-right fa fa-pencil"></i></a></li>
            <li>@Html.ActionLink("Sign Out", "Index", "Logout")</li>
        </ul>
    </li>
@RenderBody()
</body>
    <!-- Modal -->
    <div class="modal fade" id="usrmodal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
        <div class="modal-dialog">
            <div class="modal-content">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
                    <h4 class="modal-title">User Settings</h4>
                </div>
                <div class="modal-body">
                    @{ Html.Action("UserProfile", "User", new { user = @ViewBag.UserName }); }
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
                    <button type="button" class="btn btn-primary">Save changes</button>
                </div>
            </div><!-- /.modal-content -->
        </div><!-- /.modal-dialog -->
    </div><!-- /.modal -->
</html>

Whenever I try to run this I get an unhandled exception at the line in my _Layout.cshtml where I call my @{ Html.Action("UserProfile", "User", new { user = @ViewBag.UserName }); } 每当我尝试运行此_Layout.cshtml ，我在_Layout.cshtml中的行上都会得到未处理的异常，该行将我的@{ Html.Action("UserProfile", "User", new { user = @ViewBag.UserName }); } @{ Html.Action("UserProfile", "User", new { user = @ViewBag.UserName }); } : @{ Html.Action("UserProfile", "User", new { user = @ViewBag.UserName }); } ：

An unhandled exception of type 'System.StackOverflowException' occurred in System.Web.Mvc.dll

How am I supposed to render views like this? 我应该如何渲染这样的视图？ Obviously I'm doing something fundamentally wrong. 显然我在做一些根本错误的事情。

Answer 1

View() renders with Layout, so you get stack overflow. View()使用Layout渲染，因此您会得到堆栈溢出。 return PartialView(); should help you. 应该可以帮助您。

[ChildActionOnly]
public ActionResult UserProfile(string user)
{
    ViewBag.UserName = user;
    return PartialView();
}

Answer 2

尝试将ViewBag.UserName强制转换为字符串

@Html.Action("UserProfile", "User", new { user = (string)ViewBag.UserName });

使用自己的布局控制器渲染局部视图

问题描述

2 个解决方案

解决方案1
3 已采纳 2013-12-20 13:03:22

解决方案2
0 2013-12-20 13:16:18

使用自己的布局控制器渲染局部视图

问题描述

2 个解决方案

解决方案1 3 已采纳 2013-12-20 13:03:22

解决方案2 0 2013-12-20 13:16:18

解决方案1
3 已采纳 2013-12-20 13:03:22

解决方案2
0 2013-12-20 13:16:18