Folders are called directories in C#. You can create, list, and delete them with a few commands.
📂 Create a Directory
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| Directory.CreateDirectory("myfolder");
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🗂️ List Files and Directories
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| string[] files = Directory.GetFiles("myfolder");
string[] dirs = Directory.GetDirectories(".");
foreach (var file in files)
Console.WriteLine(file);
foreach (var dir in dirs)
Console.WriteLine(dir);
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🗑️ Delete a Directory
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| Directory.Delete("myfolder", recursive: true); // recursive deletes all contents
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📝 Good to Know
- Always check if a directory exists before creating or deleting:
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| if (!Directory.Exists("myfolder"))
Directory.CreateDirectory("myfolder");
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💡 Try It!
Make a folder called “TestDir”, write a file inside, and list its contents.
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| Directory.CreateDirectory("TestDir");
File.WriteAllText("TestDir/hello.txt", "Hello!");
string[] files = Directory.GetFiles("TestDir");
foreach (var file in files)
Console.WriteLine(file);
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Next: File and directory operations recap!
