How to edit C# code in a .net DLL [duplicate]

Question

I have used many decompilers but have too little experience to understand where it is that I can edit the c# code of specific objects within the DLL. Is it possible to simply edit the C# code and save the changes? If so how could I go about doing this?

TL:DR How do I edit C# code inside a DLL that I do not have the source code for?

Answer 1

You can edit & patch .NET DLL/EXE with https://github.com/0xd4d/dnSpy

Worked perfectly well for me.