How to read a text file in project's root directory?

Question

I want to read the first line of a text file that I added to the root directory of my project. Meaning, my solution explorer is showing the .txt file along side my .cs files

Answer 1

In this code you access to root directory project:

 string _filePath = Path.GetDirectoryName(System.AppDomain.CurrentDomain.BaseDirectory);

then:

StreamReader r = new StreamReader(_filePath + "/cities2.json"))