Add class into current assembly

Question

I have a current assembly in my application and I would like to add a class from external cs file into this assembly. Is it possible to do it? I would like to use it like plug-ins. Now I'm trying use:

System.Reflection.Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();

and Activator,but without success. My application is using Roslyn, so maybe it can do it. Any idea will be appreciated.

Edit: Next problem with it is: Can I use external file (cs file with class) to get instance from this file but the constructor of class needs reference to sceneManager from current assembley. So is possible to send a reference to Roslyn of something like that and get instance of class from it?

Answer 1

You cannot modify an existing assembly that has already been loaded.

Instead, you can compile code to a new assembly (using Roslyn, CodeDOM, Sigil, or similar libraries) and load that assembly using reflection.

Answer 2

A '.cs' file by itself is just text. You can't do anything with it without compiling it through some route. But no: you can't add extra classes into an assembly at runtime. You can compile the code at runtime via CSharpCodeProvider or similar, and load the generated assembly. It is a lot of messing, though. Depending on the context, tools like Iron Python may be preferable, if you need to do a lot of things from scripts at runtime.