Questions And Answers

More Tutorials

Get Files of certain extension(s) in C#

To get files of a specific extension in C# you can use Directory.EnumerateFiles() method which returns an enumerable collection of full file names that meet specified criteria. Then you can iterate and loop through the enumerable using foreach()


In below example we created a list of extension ext, this list will be used in lambda expression Where() to filter to required extensions.

using System;
using System.Linq;
using System.Collections.Generic;
using System.IO;

public class Program
	public static void Main()
		string dir = @"C:\DIRECTORY_PATH";
		var ext = new List<string> { "jpg", "gif", "png" };
		var myFiles = Directory.EnumerateFiles(dir, "*.*", SearchOption.AllDirectories)
    				.Where(s => ext.Contains(Path.GetExtension(s).TrimStart('.').ToLowerInvariant()));
		foreach (string currentFile in myFiles)
			string fileName = currentFile.Substring(dir.Length + 1);


In this page (written and validated by ) you learned about Get Files of certain extension(s) in C# . What's Next? If you are interested in completing C# tutorial, we encourage you simply to start here: C# Tutorial.

Incorrect info or code snippet? We take very seriously the accuracy of the information provided on our website. We also make sure to test all snippets and examples provided for each section. If you find any incorrect information, please send us an email about the issue:

Share On:

Mockstacks was launched to help beginners learn programming languages; the site is optimized with no Ads as, Ads might slow down the performance. We also don't track any personal information; we also don't collect any kind of data unless the user provided us a corrected information. Almost all examples have been tested. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. By using, you agree to have read and accepted our terms of use, cookies and privacy policy.