'Get filenames without path of a specific directory

How can I get all filenames of a directory (and its subdirectorys) without the full path? Directory.GetFiles(...) returns always the full path!

c++sharp.net


Solution 1:[1]

You can extract the filename from full path.

.NET 3, filenames only

var filenames3 = Directory
                .GetFiles(dirPath, "*", SearchOption.AllDirectories)
                .Select(f => Path.GetFileName(f));

.NET 4, filenames only

var filenames4 = Directory
                .EnumerateFiles(dirPath, "*", SearchOption.AllDirectories)
                .Select(Path.GetFileName); // <-- note you can shorten the lambda

Return filenames with relative path inside the directory

// - file1.txt
// - file2.txt
// - subfolder1/file3.txt
// - subfolder2/file4.txt

var skipDirectory = dirPath.Length;
// because we don't want it to be prefixed by a slash
// if dirPath like "C:\MyFolder", rather than "C:\MyFolder\"
if(!dirPath.EndsWith("" + Path.DirectorySeparatorChar)) skipDirectory++;

var filenames4s = Directory
                .EnumerateFiles(dirPath, "*", SearchOption.AllDirectories)
                .Select(f => f.Substring(skipDirectory));

confirm in LinqPad...

filenames3.SequenceEqual(filenames4).Dump(".NET 3 and 4 methods are the same?");

filenames3.Dump(".NET 3 Variant");
filenames4.Dump(".NET 4 Variant");
filenames4s.Dump(".NET 4, subfolders Variant");

Note that the *Files(dir, pattern, behavior) methods can be simplified to non-recursive *Files(dir) variants if subfolders aren't important

Solution 2:[2]

See Path.GetFileName:

Returns the file name and extension of the specified path string.

The Path Class has several useful filename and path methods.

Solution 3:[3]

You want Path.GetFileName

This returns just the filename (with extension).

If you want just the name without the extension then use Path.GetFileNameWithoutExtension

Solution 4:[4]

You can just extract the file name from the full path.

var sections = fullPath.Split('\\');
var fileName = sections[sections.Length - 1];

Solution 5:[5]

string fileName = @"C:\mydir\myfile.ext";
string path = @"C:\mydir\";
string result;

result = Path.GetFileName(fileName);
Console.WriteLine("GetFileName('{0}') returns '{1}'", 
fileName, result);

result = Path.GetFileName(path);
Console.WriteLine("GetFileName('{0}') returns '{1}'", 
path, result);

Solution 6:[6]

Although several right answers are there for this questions, You may find this solution as: 

string[] files = Directory.EnumerateFiles("C:\Something", "*.*")
                 .Select(p => Path.GetFileName(p))
                 .Where(s => s.EndsWith(".bmp", StringComparison.OrdinalIgnoreCase) || s.EndsWith(".jpg", StringComparison.OrdinalIgnoreCase)).ToArray();

Thanks

Solution 7:[7]

Create a DirectoryInfo object, use a search pattern to enumerate, then treat it like an array.

string filePath = "c:\Public\";
DirectoryInfo apple = new DirectoryInfo(@filepath);
foreach (var file in apple.GetFiles("*")
{
   //do the thing
   Console.WriteLine(file)
}

Solution 8:[8]

You can get the files name of particular directory using GetFiles() method of the DirectoryInfo class. Here are sample example to list out all file and it's details of particular directory

System.Text.StringBuilder objSB = new System.Text.StringBuilder();
    System.IO.DirectoryInfo directory = new System.IO.DirectoryInfo("d:\\");
    objSB.Append("<table>");
    objSB.Append("<tr><td>FileName</td>" + 
                 "<td>Last Access</td>" + 
                 "<td>Last Write</td>" + 
                 "<td>Attributes</td>" + 
                 "<td>Length(Byte)</td><td>Extension</td></tr>");

    foreach (System.IO.FileInfo objFile in directory.GetFiles("*.*"))
    {
        objSB.Append("<tr>");

        objSB.Append("<td>");
        objSB.Append(objFile.Name);
        objSB.Append("</td>");

        objSB.Append("<td>");
        objSB.Append(objFile.LastAccessTime);
        objSB.Append("</td>");

        objSB.Append("<td>");
        objSB.Append(objFile.LastWriteTime);
        objSB.Append("</td>");

        objSB.Append("<td>");
        objSB.Append(objFile.Attributes);
        objSB.Append("</td>");

        objSB.Append("<td>");
        objSB.Append(objFile.Length);
        objSB.Append("</td>");

        objSB.Append("<td>");
        objSB.Append(objFile.Extension);
        objSB.Append("</td>");

        objSB.Append("</tr>");
    }
    objSB.Append("</table>");

    Response.Write(objSB.ToString());

This example display list of file in HTML table structure.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 drzaus
Solution 2 Mitch Wheat
Solution 3
Solution 4 Matt Grande
Solution 5 Santosh Kokatnur
Solution 6 Dev
Solution 7 Josh Garcia
Solution 8 Kjartan

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