How to get some parts of the directory c#

Question

For example,

foreach (var imageFile in Directory.GetFiles(dir, "*.*", SearchOption.AllDirectories))
{
    //add to list
}

Output of imageFile = C:\Users\Documents\MyWeb\Slide\Main\slider2.png

I need to get only \Slide\Main\slider2.png

Is there any easy way of doing this?

How do you decide which part to discard? Why not just remove the directory path from the image path? eg `imageFile.Remove(dir);` — Panagiotis Kanavos, Mar 15 '17 at 11:41
Well, what's the rule that should be used? For that one case, you can split the path based on `MyWeb` maybe, but what about other directories? Is there a common place where it's split? — rory.ap, Mar 15 '17 at 11:41
It depends on how exactly this part should be determined. Is it always four folder in path or something else? — Andrey Korneyev, Mar 15 '17 at 11:42
@DavidG -- How can you close this as a dupe when we don't have enough information yet? — rory.ap, Mar 15 '17 at 11:47
@PanagiotisKanavos i just need the second to the last folder up to the filename — megatron, Mar 15 '17 at 11:49
@AndyKorneyev does always splitting it \Slide\ counts? because \Slide\ folder name does not change. — megatron, Mar 15 '17 at 11:49
@megatron Are you trying to make all of your image paths relative to the `C:\Users\Documents\MyWeb` folder? — DavidG, Mar 15 '17 at 11:50
@DavidG no, it varies. it is just the folder from \Slide\Main does not change. — megatron, Mar 15 '17 at 11:53
@megatron find the index of the nth slash and get the rest of the string with `.Substring()` — Panagiotis Kanavos, Mar 15 '17 at 11:54
@megatron If you know which files you need already, why should you search the whole directory? I am a little bit confused. — Jordy, Mar 15 '17 at 12:09

score 1 · Answer 1 · answered Mar 15 '17 at 12:05

Since you are looking for a specific folder, you can do this:

var imageFile = @"C:\Users\Documents\MyWeb\Slide\Main\slider2.png";
var subFolder = @"\Slide\Main";

var relativePath = imageFile.Substring(
    imageFile.IndexOf(subFolder, StringComparison.OrdinalIgnoreCase));

score 0 · Answer 2 · answered Mar 15 '17 at 12:13

0

You can use something like this:

string imageFile = @"C:\Users\Documents\MyWeb\Slide\Main\slider2.png";
string match = System.Text.RegularExpressions.Regex.Match(imageFile,@"\\Slide\\Main\\.*").Value;

answered Mar 15 '17 at 12:13

Zalomon

553
4
14

score 0 · Answer 3 · answered Mar 15 '17 at 12:18

0

Why not using string.Split("\") and that will give you all the chunks of that path and then you can concatenate the rest from the position you want, or use a Regular Expressionn as @Zalomon said

answered Mar 15 '17 at 12:18

Zinov

3,817
5
36
70

score 0 · Answer 4 · answered Mar 15 '17 at 12:19

You can do it with Uri easily, I have tested it, So it is Working fine

namespace ConsoleApplication1
{
    class Program
    {
        public static void Main()
        {
            Uri uriAddress1 = new Uri("C:\\Users\\Documents\\MyWeb\\Slide\\Main\\slider2.png");
            Console.WriteLine("The parts are {0}{1}{2}", uriAddress1.Segments[5], uriAddress1.Segments[6], uriAddress1.Segments[7]);
            Console.ReadKey();
        }
    }
}

score 0 · Answer 5 · answered Mar 15 '17 at 12:21

I wish I could credit the person who wrote this first, but I've since lost the link.

From my utilities collection:

    /// <summary>
    /// Generates a Relative Path for targetPath, from basePath
    /// </summary>
    /// <param name="basePath">The Directory to start from.</param>
    /// <param name="targetPath">Full Path to file or folder that is to be made relative</param>
    /// <returns>The relative location of targetPath, from basePath</returns>
    /// <remarks>Tested in Util.Tests.IO.PathUtilsTests</remarks>
    public static string MakeRelativePath(string basePath, string targetPath)
    {
        if (basePath == targetPath)
            return "";

        if (!basePath.EndsWith(Path.DirectorySeparatorChar.ToString()))
            basePath += Path.DirectorySeparatorChar;

        if (String.IsNullOrEmpty(basePath)) throw new ArgumentNullException("basePath");
        if (String.IsNullOrEmpty(targetPath)) throw new ArgumentNullException("targetPath");

        var fromUri = new Uri(basePath);
        var toUri = new Uri(targetPath);

        if (fromUri.Scheme != toUri.Scheme) { return targetPath; } // path can't be made relative.

        var relativeUri = fromUri.MakeRelativeUri(toUri);
        var relativePath = Uri.UnescapeDataString(relativeUri.ToString());

        if (toUri.Scheme.Equals("file", StringComparison.InvariantCultureIgnoreCase))
        {
            relativePath = relativePath.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
        }

        return relativePath;
    }

Usage:

var output = @"C:\Users\Documents\MyWeb\Slide\Main\slider2.png";
var basePath = @"C:\Users\Documents\MyWeb\";

var rel = MakeRelativePath(basePath, output);

Yes! That looks like where I first got this from. – Adam Schiavone Mar 15 '17 at 13:19 — Adam Schiavone, Mar 15 '17 at 13:19

How to get some parts of the directory c#

5 Answers5