blocks|key|2627494|text|您试过手动重置intellisense吗？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2627495|要手动重新启用intellisense，请进入工具->+Options+->+Text+Editor+->+All+Language%2B+C#|2627496|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Have you tried manually resetting intellisense?

To re-enable intellisense manually go into your Tools -> Options -> Text Editor -> All Languages + C#

blocks|key|2627515|text|微软为此发布了一个更新版本，Web+2013.1用于VS2012。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2627516|http://blogs.msdn.com/b/webdev/archive/2013/11/18/announcing-release-of-asp-net-and-web-tools-2013-1-for-visual-studio-2012.aspx|offset|length|2627517|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|3K|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

Microsoft has released an update for this, Web Tools 2013.1 for VS2012.

<a href="http://blogs.msdn.com/b/webdev/archive/2013/11/18/announcing-release-of-asp-net-and-web-tools-2013-1-for-visual-studio-2012.aspx" rel="noreferrer">http://blogs.msdn.com/b/webdev/archive/2013/11/18/announcing-release-of-asp-net-and-web-tools-2013-1-for-visual-studio-2012.aspx</a>

blocks|key|2627563|text|如何将aspnet+mvc4和webapi项目升级为aspnet+mvc5和web+api2|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2627564|在VS2013预览版中，我们发布了新的Razor+V3运行时和设计时间引擎，以支持MVC5和Razor+V3网站的运行时和设计时间行为。与Razor+V2运行时和设计时不同，VS2013没有GAC这些二进制文件。相反，安装相应的12.0\Common7\IDE\CommonExtensions\Microsoft\Web\Razor\v3.0”包时，二进制文件将安装在项目bin文件夹中，并安装在“%25ProgramFiles+(x86)%25\Microsoft”中以支持设计时间。|2627565|正如在VS2012中确定要加载哪个剃刀v1/v2设计时dll一样，VS+2013预览版首先使用web.config文件键来确定要加载用于编辑网页的设计时dll版本。例如，默认情况下，MVC5项目包含，VS将加载Razor+V3+dll来编辑项目的网页文件(即cshtml或vbhtml文件)。|2627566|如果web.config文件(如默认Razor+2/V3网站)缺少密钥，VS将使用bin目录的剃刀dll版本来确定要加载的设计时剃刀引擎dll。|2627567|由于Razor+v1不再附带VS2013预览，如果打开单个网页文件(即cshtml或vbhtml文件)而没有bin目录或web.config设置，VS+2013预览将简单地将网页加载为纯文本文件。更新10/9/2013:在VS2013+RC和RTW中，VS将使用盒子上最高的Razor版本打开单个网页文件。|2627568|您可以通过调试到Visual进程来验证这些行为，并检查模块窗口，使用剃刀关键字进行筛选。|2627569|entityMap|0|LINK|mutability|MUTABLE|url|http://www.asp.net/mvc/tutorials/mvc-5/how-to-upgrade-an-aspnet-mvc-4-and-web-api-project-to-aspnet-mvc-5-and-web-api-2^0|0|1A|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@$A|W|B|X|1|Y]]|C|$]]|$1|D|3|E|5|6|7|Z|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|10|8|@]|9|@]|C|$]]|$1|H|3|I|5|6|7|11|8|@]|9|@]|C|$]]|$1|J|3|K|5|6|7|12|8|@]|9|@]|C|$]]|$1|L|3|M|5|6|7|13|8|@]|9|@]|C|$]]|$1|N|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|O|$P|$5|Q|R|S|C|$T|U]]]]

<a href="http://www.asp.net/mvc/tutorials/mvc-5/how-to-upgrade-an-aspnet-mvc-4-and-web-api-project-to-aspnet-mvc-5-and-web-api-2" rel="nofollow">how to upgrade an aspnet mvc4 and webapi project to aspnet mvc5 and web api2</a>

In VS2013 Preview, we released new Razor V3 runtime and design time Engine to support MVC5 and Razor V3 website’s runtime and design time behavior. Unlike Razor V2 runtime and design time, VS2013 did not GAC these binaries. Instead, the binaries are installed in the project bin folder when corresponding NuGet package is installed, and in “%ProgramFiles (x86)%\Microsoft Visual Studio 12.0\Common7\IDE\CommonExtensions\Microsoft\Web\Razor\v3.0” to support design time.

As in VS2012 to determine which razor v1/v2 design time dlls to load, VS 2013 preview first use web.config file key to determine the design time dll version to load for editing webpages. For example, by default, MVC5 project contains , VS will load Razor V3 dlls to edit the project’s webpage files (i.e. cshtml or vbhtml files) .

If the key is missing from web.config file such as default Razor V2/V3 website, VS will use bin directory’s razor dll version to determine the design time razor engine dll to load.

Since Razor v1 is no longer ships with VS2013 preview, if a single webpage file (i.e. cshtml or vbhtml files) is opened without bin directory nor web.config setting, VS 2013 preview will simply load the webpage as a plain text file. Updated 10/9/2013: In VS2013 RC and RTW, VS will open the single webpage file using the highest Razor version on the box.

You can verify these behavior by debugging into the Visual Studio process and check the module window, filter with razor keyword.

blocks|key|353250|text|由于在撰写这篇文章时发布的所有答案都是2013年发布的，而且我们中仍有一些人不幸地使用了VS2012，所以我想发布一个指向WebTools2013包的直接链接，该链接除其他外，将启用Razor+3支持：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|353251|直接下载链接:+WebTools2013+for+Visual+2012|offset|length|353252|我被迫使用链接，因为Web平台安装程序无法再找到Razor+3软件包。|353253|希望这能帮到别人！！|353254|entityMap|0|LINK|mutability|MUTABLE|url|http://www.microsoft.com/en-us/download/details.aspx?id=41532^0|0|0|10|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

Since all the answers posted at the time of writing this are from 2013, and there's still some of us unfortunate enought to use VS2012, I want to post a direct link to the WebTools2013 package that will, amongst other things, enable Razor 3 support:
<h3><a href="http://www.microsoft.com/en-us/download/details.aspx?id=41532" rel="nofollow noreferrer">Link to direct download: WebTools2013 for Visual Studio 2012</a></h3>
I was forced to use link since the Web Platform Installer can no longer find the Razor 3 package.
Hope this helps someone else!!

I've updated all nuget packages and got the new MVC 5.0 package and Razor 3.0
Since then instellisence and syntax highlighting for all .cshtml files has stopped working

<pre><code>System.Web.WebPages.Razor is version: 3.0.0.0
System.Web.dll is version 4.0.0.0
System.Web.Mvc is version 5.0.0.0
</code></pre>

Im running Visual Studio 2012 with Update 3

Also tried making a new MVC 4 project and doing a Nuget Update all with the same result: Razor Intellisence stops working.

Applied the upgrade guide without any success:
<a href="http://www.asp.net/mvc/tutorials/mvc-5/how-to-upgrade-an-aspnet-mvc-4-and-web-api-project-to-aspnet-mvc-5-and-web-api-2">http://www.asp.net/mvc/tutorials/mvc-5/how-to-upgrade-an-aspnet-mvc-4-and-web-api-project-to-aspnet-mvc-5-and-web-api-2</a>

Razor 3 in Visual Studio 2012

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我更新了所有nuget包，并获得了新的MVC5.0包和Razor3.0，从那时起，所有.cshtml文件的instellisence和语法突出显示都停止了工作。System.Web.WebPages.Razor is version: 3.0.0.0System.Web.dll is version 4.0.0.0Sy...

问Visual Studio 2012中的剃须刀3
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