How to check if directory 1 is a subdirectory of dir2 and vice versa

Question

What is an easy way to check if directory 1 is a subdirectory of directory 2 and vice versa?

I checked the Path and DirectoryInfo helperclasses but found no system-r

Answer 1

DirectoryInfo has a property Parent which is also a DirectoryInfo type. You can use that to to determine if your directory is a subdirectory of a parent directory.