c# - delete folder/files and subfolder

Question

I want to delete a folder containing files and a subfolder, also containing files. I have used everything, but it is not working for me. I'm using the following function in my web-application asp.net:

var dir = new DirectoryInfo(folder_path);
dir.Delete(true); 

Sometimes it deletes a folder, or sometimes it doesn't. If a subfolder contains a file, it only deletes the file, and not the folder as well.

Answer 1

Directory.Delete(folder_path, recursive: true);

would also get you the desired result and a lot easier to catch errors.