Preprocessor directives across different files in C#

Question

I know that I can use preprocessor directives in C# to enable/disable compilation of some part of code.

If I define a directive in the same file, it wor

Answer 1

In your .csproj there is a section:

  
    TRACE;DEBUG;LINQ
  

If you want extra preprocessors you can add them there.

Or via the properties of the project which will add them there automatically for you. In properties under the Build tab.