C# Tutorial 9.2 : File I/O - Working with directories

 in C# using File I/O. In C#, the System.IO namespace provides classes for working with files and directories. Here's a basic tutorial on how to perform common operations with directories:

1. Creating a Directory:

You can use the Directory.CreateDirectory method to create a new directory. Here's an example:

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string path = @"C:\MyDirectory";

        // Check if the directory doesn't exist before creating it
        if (!Directory.Exists(path))
        {
            Directory.CreateDirectory(path);
            Console.WriteLine("Directory created successfully.");
        }
        else
        {
            Console.WriteLine("Directory already exists.");
        }
    }
}

2. Getting the Files in a Directory:

You can use the Directory.GetFiles method to get a list of files in a directory. Here's an example:

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string path = @"C:\MyDirectory";

        // Check if the directory exists before getting files
        if (Directory.Exists(path))
        {
            string[] files = Directory.GetFiles(path);

            Console.WriteLine("Files in the directory:");
            foreach (string file in files)
            {
                Console.WriteLine(file);
            }
        }
        else
        {
            Console.WriteLine("Directory does not exist.");
        }
    }
}

3. Getting the Directories in a Directory:

You can use the Directory.GetDirectories method to get a list of subdirectories in a directory. Here's an example:

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string path = @"C:\MyDirectory";

        // Check if the directory exists before getting subdirectories
        if (Directory.Exists(path))
        {
            string[] subdirectories = Directory.GetDirectories(path);

            Console.WriteLine("Subdirectories in the directory:");
            foreach (string subdirectory in subdirectories)
            {
                Console.WriteLine(subdirectory);
            }
        }
        else
        {
            Console.WriteLine("Directory does not exist.");
        }
    }
}

4. Deleting a Directory:

You can use the Directory.Delete method to delete a directory. Here's an example:

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string path = @"C:\MyDirectory";

        // Check if the directory exists before deleting it
        if (Directory.Exists(path))
        {
            Directory.Delete(path);
            Console.WriteLine("Directory deleted successfully.");
        }
        else
        {
            Console.WriteLine("Directory does not exist.");
        }
    }
}

Remember to handle exceptions appropriately, especially when working with file I/O operations, as they may throw exceptions for various reasons (e.g., insufficient permissions, file not found, etc.).