// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002689/fileinfo-openzipfile

​

// @nuget: Z.ExtensionMethods

// @nuget: System.IO.Compression

​

using System;

using System.IO;

using System.IO.Compression;

public class Program

{

    public static void Main()

    {

        CreateZipFile();

​

        var dir = new DirectoryInfo(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "ExtractZipFileToDirectory"));

        if (dir.Exists)

        {

            dir.Clear();

        }

        var zip = new FileInfo(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "ZipFileDirectory", "test.zip"));

​

        Directory.CreateDirectory(zip.Directory.FullName);

​

        //C# Extension Method: FileInfo - OpenZipFile

        using (ZipArchive archive = zip.OpenZipFile(ZipArchiveMode.Update))

        {

            archive.CreateEntry("NewEntry.txt");

        }

​

        string extractPath = dir.FullName;

​

        if (!extractPath.EndsWith(Path.DirectorySeparatorChar.ToString(), StringComparison.Ordinal))

            extractPath += Path.DirectorySeparatorChar;

​

        using (var archive = zip.OpenReadZipFile())

        {

            foreach (ZipArchiveEntry entry in archive.Entries)

            {

                Console.WriteLine(entry.FullName);

            }

        }

    }

    public static void CreateZipFile()

    {

        var dir = new DirectoryInfo(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "TxtFileDirectory"));

        var dir2 = new DirectoryInfo(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "ZipFileDirectory"));

​

        if (dir.Exists)

        {

            dir.Clear();

        }

        if (dir2.Exists)

        {

            dir2.Clear();

        }

​

        // Type

        var @this = new FileInfo(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "TxtFileDirectory", "test.txt"));

        var zip = new FileInfo(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "ZipFileDirectory", "test.zip"));

​

        Directory.CreateDirectory(@this.Directory.FullName);

        Directory.CreateDirectory(zip.Directory.FullName);

​

        // Intialization

        using (FileStream stream = @this.Create())

        {

        }

        @this.Directory.CreateZipFile(zip);

    }

}