I am building a projects by C#. It contains many folders, each folder represents for a function. Now I want to make a .dll file for each of them. Is there any tools can help me to do it? And after that I want to merge them together. Is there any solution for me to do it?
Thank you,
You are searching for modules in .NET. Where module is a file (not a DLL) with self sufficient (from structure perspective) content which can be read and executed by CLR virtual machine into machine code.
Read this for detailed explanation: How to: Build a Multifile Assembly
You will need to do a little command line execution, no direct visual studio support, afaik.