Creating a Zip archive using ZipWriter Snippet

The following example demonstrates how to create a Zip archive locally using the files in a test directory.

using System.IO;
using Xceed.Zip.ReaderWriter;
//The target Zip archive
using (FileStream fileStream1 = new FileStream(@"d:\testOutput\test.zip",
  FileMode.Create, FileAccess.Write))
{
  //Create the ZipWriter object around the stream.
  Xceed.Zip.ReaderWriter.ZipWriter zipWriter1 =
    new Xceed.Zip.ReaderWriter.ZipWriter(fileStream1);
  //The source directory.
  DirectoryInfo directoryInfo = new DirectoryInfo(@"d:\test\");
  if (directoryInfo.Exists)
  {
    //Get files in the current directory and all subdirectories.
    FileInfo[] files = directoryInfo.GetFiles("*.*",
      SearchOption.AllDirectories);
    foreach (FileInfo file in files)
    {
      //Create ZipItemLocalHeader for current item and write to archive.
      ZipItemLocalHeader zipItemLocalHeader1 = new ZipItemLocalHeader
        (file.Name);
      zipWriter1.WriteItemLocalHeader(zipItemLocalHeader1);
      byte[] buffer = new byte[1024];
      int read = 0;
      using (FileStream fs = file.OpenRead())
      {
        //Read the current item's data
        while ((read = fs.Read(buffer, 0, buffer.Length)) != 0)
        {
          //Write the current item's data to the Zip archive
          zipWriter1.WriteItemData(buffer, 0, read);
          Console.WriteLine("Writing {0}. {1} bytes written.",
            zipItemLocalHeader1.FileName, read);
        }
      }
    }
    //Close the Zip archive. Writes the archive's central header.
    zipWriter1.CloseZipFile();
    Console.WriteLine("Zip archive created.");
  }
}

VB.NET

Imports System.IO
Imports Xceed.Zip.ReaderWriter
'The target Zip archive
Using fileStream1 As New FileStream("d:\testOutput\test.zip",
  FileMode.Create, FileAccess.Write)

  'Create the ZipWriter object around the stream.
  Dim zipWriter1 As New Xceed.Zip.ReaderWriter.ZipWriter(fileStream1)
  'The source directory
  Dim directoryInfo As New DirectoryInfo("d:\test\")
  If directoryInfo.Exists Then

    'Get files in the current directory and all subdirectories.
    Dim files As FileInfo() = directoryInfo.GetFiles("*.*",
      SearchOption.AllDirectories)

    For Each file As FileInfo In files
      'Create ZipItemLocalHeader for current item and write to archive.
      Dim zipItemLocalHeader1 As New ZipItemLocalHeader(file.Name)
      zipWriter1.WriteItemLocalHeader(zipItemLocalHeader1)
      Dim buffer As Byte() = New Byte(1023){}
      Dim read As Integer = 0
      Using fs As FileStream = file.OpenRead()
        'Read the current item's data
        read = fs.Read(buffer, 0, buffer.Length)
        Do While (read <> 0)
          'Write the current item's data to the Zip archive
          zipWriter1.WriteItemData(buffer, 0, read)
          Console.WriteLine("Writing {0}. {1} bytes written.", zipItemLocalHeader1.FileName, read)
          read = fs.Read(buffer, 0, buffer.Length)
        Loop
      End Using
    Next file
    'Close the Zip archive. Writes the archive's central header.
    zipWriter1.CloseZipFile()
    Console.WriteLine("Zip archive created.")
  End If
End Using