MVC 4 @Scripts“不存在" [英] MVC 4 @Scripts "does not exist"
问题描述
我刚刚创建了一个 ASP.NET MVC 4 项目，并使用 Visual Studio 2012 RC 为 Index 和 Create 操作创建了一个控制器和 Razor 视图.
I have just created an ASP.NET MVC 4 project and used Visual Studio 2012 RC to create a Controller and Razor Views for Index and Create Actions.
当我开始运行应用程序并浏览到Create 视图时，显示以下错误:
When I came to run the application, and browsed to the Create view, the following error was shown:
编译器错误消息:CS0103:名称脚本"不存在于当前上下文
Compiler Error Message: CS0103: The name 'Scripts' does not exist in the current context
问题是自动添加到视图底部的以下代码:
The problem is the following code which was added automatically to the bottom of the View:
@section Scripts {
@Scripts.Render("~/bundles/jqueryval")
}
为什么脚本不存在?
我查看了 Assembly System.Web.Mvc.dll v4.0.0.0 中的基本网页类
I looked at the base Web Page class in Assembly System.Web.Mvc.dll, v4.0.0.0
我可以看到以下可用的辅助属性:
I can see the following helper properties available:
- 阿贾克斯
- HTML
- 网址
但没有命名脚本.
有什么想法吗?
我的 Web.config 文件如下所示(与 Visual Studio 创建的文件没有任何关系):
My Web.config file looks like this (untouched from the one that Visual Studio created):
<system.web.webPages.razor>
<host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<pages pageBaseType="System.Web.Mvc.WebViewPage">
<namespaces>
<add namespace="System.Web.Mvc" />
<add namespace="System.Web.Mvc.Ajax" />
<add namespace="System.Web.Mvc.Html" />
<add namespace="System.Web.Routing" />
</namespaces>
</pages>
</system.web.webPages.razor>
编辑 #2:
人们正在写关于使用 @Scripts 助手的博客:
People are blogging about using the @Scripts helper:
尽管刚刚将 Visual Studio 2012 RC 安装到全新的 Windows 8 安装上，我仍然无法使用 @Scripts，即使 Visual Studio 将其添加到生成的视图中！
Yet having just installed Visual Studio 2012 RC onto a fresh Windows 8 install I am still unable to use @Scripts even though Visual Studio adds it to the generated View!
解决方案如下所示.
我不知道如何关闭它，因为最终更新似乎解决了这个问题.我仔细检查了我是否使用新项目执行了全新安装.但是，经过各种更新并且没有明显的人工干预后，我所做的同样失败的项目现在可以正常工作了.感谢所有的想法，但当时肯定有问题;)
I am not sure how to close this, because in the end an update seemed to resolve the issue. I double checked I had performed a clean install, using a new project. But the same failing project I had made works fine now after various updates and no manual obvious intervention. Thanks for all of the thoughts but there was definitely an issue at the time ;)
推荐答案
这里的关键是添加
<add namespace="System.Web.Optimization" />
到两个 web.config 文件.我的情况是我在项目和主/根 web.config 中都有 System.Web.Optimization 参考，但 @Scripts 仍然无法正常工作.您需要将命名空间引用添加到 Views web.config 文件中才能使其工作.
to BOTH web.config files. My scenario was that I had System.Web.Optimization reference in both project and the main/root web.config but @Scripts still didn't work properly. You need to add the namespace reference to the Views web.config file to make it work.
更新:
自从 MVC 4 System.Web.Optimization 发布以来，它已经过时了.如果您从空白解决方案开始，则需要安装以下 nuget 包:
Since the release of MVC 4 System.Web.Optimization is now obsolete. If you're starting with a blank solution you will need to install the following nuget package:
Install-Package Microsoft.AspNet.Web.Optimization
您仍需要在 web.config 文件中引用 System.Web.Optimization.有关详细信息，请参阅此主题:
You will still need to reference System.Web.Optimization in your web.config files. For more information see this topic:
如何为 MVC-3-converted-to-4 应用程序添加对 System.Web.Optimization 的引用
正如许多人指出的那样，在上述步骤之后，可能需要重新启动 VS 才能完成这项工作.
As many pointed out, restart of VS could be required after the above steps to make this work.
这篇关于MVC 4 @Scripts“不存在"的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
