How to use C# 6 with Web Site project type?

by

I’ve tested this with ASP.NET MVC 5 (tested 5.2.3), and your mileage may vary with other web frameworks, but you just need to add the NuGet package for Roslyn CodeDOM.

Microsoft.CodeDom.Providers.DotNetCompilerPlatform should add the DLL files…

PM> Install-Package Microsoft.CodeDom.Providers.DotNetCompilerPlatform

Replacement CodeDOM providers that use the new .NET Compiler Platform (“Roslyn”) compiler as a service APIs. This provides support for new language features in systems using CodeDOM (e.g. ASP.NET runtime compilation) as well as improving the compilation performance of these systems.

…and also add the following to your web.config:

<system.codedom>
  <compilers>
    <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:6 /nowarn:1659;1699;1701" />
    <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\&quot;Web\&quot; /optionInfer+" />
  </compilers>
</system.codedom>

If the XML is still missing, try adding yourself.

More Related Contents:

  1. Project builds but can’t publish
  2. Can I automatically increment the file build version when using Visual Studio?
  3. How to use C# 7 with Visual Studio 2015?
  4. How to enable C# 6.0 feature in Visual Studio 2013?
  5. How do I enable NuGet Package Restore in Visual Studio?
  6. C# 6.0 Features Not Working with Visual Studio 2015
  7. How do I use the C#6 “Using static” feature?
  8. Visual Studio 2015 not syntax highlighting razor nor Intellisense
  9. Visual Studio – Resx File default ‘internal’ to ‘public’
  10. Breakpoint Failed to Bind – Visual Studio 2015
  11. Setting the datasource for a Local Report – .NET & Report Viewer
  12. How to find the reason for a failed Build without any error or warning
  13. ASP.NET 5 add WCF service reference
  14. Primary constructors no longer compile in VS2015
  15. How do i split a String into multiple values?
  16. IIS Express Immediately shutting-down running site after stopping web application
  17. Check if a folder exist in a directory and create them using C#
  18. Go To Definition: “Cannot navigate to the symbol under the caret.”
  19. ASP.NET 5 MVC: unable to connect to web server ‘IIS Express’
  20. Application Can’t Load. Visual C# 2015 RC Compiler Could Not Be Created
  21. Visual Studio 2015 diagnostics tool does not support current debugging configuration
  22. How to add config transformations for a custom config file in Visual Studio?
  23. Read a Registry Key
  24. Starting form to appear before the next form
  25. Delegate caching behavior changes in Roslyn
  26. ASP.NET FileUpload in UpdatePanel – still not working
  27. Multiples Table in DataReader
  28. Redirect to another page when user is not authorized in asp.net mvc3
  29. Is there a way in Json.NET serialization to distinguish between “null because not present” and “null because null”?
  30. How do I get a directory size (files in the directory) in C#?

Leave a Comment