How to extract the filename from a path

Question

I have a string value which is /Images/She.jpg. I want only the part after the /images/ i.e She.jpg. How to extract that part into a string?

score 16 · Accepted Answer · answered Aug 16 '13 at 15:31

16

string filename = System.IO.Path.GetFileName("/Images/She.jpg");

answered Aug 16 '13 at 15:31

Zbigniew

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Can you tell me how to delete that file. – vinay teja reddy Aug 16 '13 at 15:40
1

Sure, you can use [System.IO.File.Delete](http://msdn.microsoft.com/en-US/library/system.io.file.delete.aspx) method to remove it. – Zbigniew Aug 16 '13 at 15:42
Though, make sure that the `path` is correct. – Zbigniew Aug 16 '13 at 15:44
So it Does.'t delete the fodler ? it only deletes the file in that folder ? sorry just a small confusion.. – vinay teja reddy Aug 16 '13 at 15:44
Yes, it'll only delete file, if you want to delete folder then you need to use `System.IO.Directory.Delete` – Zbigniew Aug 16 '13 at 15:45

score 5 · Answer 2 · answered Aug 16 '13 at 15:36

5

If you're working with paths you should use the other answers. If it's only a plain string you're working with you can use following code:

string filePath = "/Images/She.jpg";
string fileName = filePath.Substring(filePath.LastIndexOf("/") + 1);

answered Aug 16 '13 at 15:36

Abbas

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Even when working with plain strings, you should use the `Path` class. What happens here if the file you were given is relative to the current directory, such as `"She.jpg"`? – dlras2 Aug 17 '13 at 19:27

score 0 · Answer 3 · answered Aug 16 '13 at 15:33

0

This will work, as long as you don't have anything too complicated in your path, e.g. query parameters after the file name.

Path.GetFileName("/Images/She.jpg")

answered Aug 16 '13 at 15:33

Tim S.

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score 0 · Answer 4 · answered Aug 16 '13 at 15:38

I like the GetFileName answers previously posted.

Alternatively, you can parse the string manually using IndexOf and Substring. I've included multiple variables so it's easy to see the steps of parsing a string.

var source = "/images/she.jpg";
var key = "/images/";
var target = source.IndexOf(key);
var start = target + key.Length;
var length = source.Length - start;
var result = source.Substring(start, length);

score 0 · Answer 5 · answered Aug 16 '13 at 18:43

Just for fun, you could also split the string into an array and get the last element in the array...

string path = "/Images/She.jpg";
string[] arr = path.Split('/');
string filename = arr[arr.Length - 1];

or if you prefer a one liner

string path = "/Images/She.jpg";
string filename = path.Split('/').Last();

this will return

She.jpg

score -1 · Answer 6 · answered Aug 16 '13 at 15:38

Well, you can move backwards from the end of the string.

    private string GetFileName(string path)
    {
        string filename = null;

        for (int i = (path.Length - 1); i > -1; --i)
        {
            if (path[i].ToString() == "/")
            {
                for (int x = (i + 1); x < (path.Length); ++x)
                {
                    filename += path[x];
                }

                break;
            }
        }

        return (filename);
    }

This works backwards from the last char of the string until it hits a '/'. Then, it adds up all the characters after the '/' and returns that to you.

What a complicated approach. – CesarGon Aug 16 '13 at 21:54 — CesarGon, Aug 16 '13 at 21:54

How to extract the filename from a path

6 Answers6