Question

I developed a simple .net application that scrapes some data from web and saves it in a file (file and the proejct exe file are in the same folder ).

It runs fine on windows, but when i run it on mac using ‘Mono’ i get this error

Access to the path ‘[path]’ is denied.

I am creating the accessing this file using Directory.GetCurrentDirectory.

here is the path i am using:

 System.IO.Directory.GetCurrentDirectory() + "\\abc.csv";

Answer 1

You should not concatenate directories using strings, not if you want your applications to be cross platform.

BAD:

Directory.GetCurrentDirectory() + "\\abc.csv";

Good:

Path.Combine(Directory.GetCurrentDirectory(), "abc.csv");

Using Path.Combine will ensure the correct directory separators are used.

If you have to traverse through several directories, use Path.Combine repeatedly:

Path.Combine(Path.Combine(Directory.GetCurrentDirectory(), "mydir"), "abc.csv");