How can I tell the difference between source and published .NET code?

I am looking at some inherited code that I have not touched in about a year. The original designer had me first publish locally before uploading the published code to the internet server. Now I am looking a number of backed up source folders as well bas backed up published folders. I should have done a better job at naming the folders, I guess. Now I wonder: How can I tell the difference between source and published .NET code? Is there some easy way to see if some folder that contains only published code is lacking a file or xml setting?

Is the .csproj file or the .sln file part of the code pushed to the server when you publish? What other differences are there that I are immediate and obvious?

published code is typically all compiled code and all source files (cs files, project files, sln files, ..) removed. leaving only those files needed for the application to run (dlls, aspx, css, javascripts, etc...).

Published code only contains .dll files, .css files, .js files, .cshtml files, .aspx files etc. There are no source code files such as .cs file.

Hope you got the answer.

Happy coding.