Extract part of a path in c#

Question

Suppose I have the directory path:

D:\aa\bb

and inside of it can be more file or folders with sub folders

for example

D:\aa\bb\test.txt
D:\aa\bb\cc\test.txt
D:\aa\bb\cc\dd\test.txt

is there a clean way to extract the right part of the path?

I need something like:

string ExtractRightPart(string fullPath)
{
   return ...
}

Examples:

For input

D:\aa\bb\cc\dd\test.txt

the function should return

cc\dd\test.txt

And for input

D:\aa\bb\test.txt

the function should return

test.txt

score 1 · Accepted Answer · answered Jul 30 '20 at 08:37

1

    public string ExtractRightPart(string fullPath, string leftPath)
    {
        return fullPath.Substring(leftPath.Length);
    }

    ExtractRightPart(@"D:\aa\bb\cc\dd\test.txt", @"D:\aa\bb\");

answered Jul 30 '20 at 08:37

Philippe Auriou

567
4
17

What happens if full path does not start from the left path? – PaulF Jul 30 '20 at 08:42
Add condition if(!fullPath.StartsWith(leftPath)) return string.Empty; – Philippe Auriou Jul 30 '20 at 09:53

Extract part of a path in c#

1 Answers1