Exclude *.cs files while publish from VS

Hi,

I published MVC6 (dnx46) project, it pushed all the published files to 'artifacts\bin\MyProject\Release\PublishOutput'. I found it's publishing *.cs files also inside 'approot\src\...' folders. 

How we can prevent the .cs files while publishing.? Should I put below in appsettings.json or there is some other way?

"publishExclude": ["**.user","**.vspscc","**.cs",
  ],

Thanks,

Aniket