.Net Framework and .Net Core in same solution

Question

I have an application targeting .NET Framework, and now I need to develop a library in .NET Core. I plan to put both projects in the same solution and add the .NET Core library as a reference in the .NET Framework project.

Can this be done? If the answer is yes, how can this be done?

Answer 1

There is an article published in April 2017 on how to support both runtimes from the same solution:

https://docs.microsoft.com/en-us/dotnet/core/porting/project-structure

It boils down to 2 methods:

• Having both frameworks configured in the same project (e.g. *.csproj):

Replace existing projects with a multi-targeted .NET Core project.

• Having a separate project for each framework:

Keep existing projects and create a .NET Core project.

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We are actively discussing which way to go in pythonnet, since the project supports .NET Framework on Windows and Mono on Linux/OSX. Now we are adding cross-platform pythonnet support:

https://github.com/pythonnet/pythonnet/pull/518