Zip complete folder using System.IO.Compression

c#, wpf

Solution

I don't think you can zip a complete folder using System.IO.Compression, you can only compress files inside the folder. You can use DotNetZip instead. It is a 100% managed code library that can be used in any .NET application - Console, Winforms, WPF, ASP.NET, Sharepoint, Web services apps, and so on.

Download developer's kit package from http://dotnetzip.codeplex.com/Release/ProjectReleases.aspx.

Reference necessaries including DotNetZip DLL in your application and do follows:

string[] MainDirs = Directory.GetDirectories(""c:\users\public\reports");

for (int i = 0; i < MainDirs.Length; i++)
{
    using (ZipFile zip = new ZipFile())
    {
        zip.UseUnicodeAsNecessary = true;
        zip.AddDirectory(MainDirs[i]);
        zip.CompressionLevel = Ionic.Zlib.CompressionLevel.BestCompression;
        zip.Comment = "This zip was created at " + System.DateTime.Now.ToString("G");
        zip.Save(string.Format("test{0}.zip", i));   
    }
}

Hope this helps, Thanks

Problem

I have one example where all the files in the folder are zipped but not the folder itself .[This code is from MSDN] ``` using System; using System.IO; using System.IO.Compression; namespace zip { public class Program { public static void Main() { string directoryPath = @"c ------------------------------------------------------------------------ :\users\public\reports"; DirectoryInfo directorySelected = new DirectoryInfo(directoryPath); foreach (FileInfo fileToCompress in directorySelected.GetFiles()) { Compress(fileToCompress); } foreach (FileInfo fileToDecompress in directorySelected.GetFiles("*.gz")) { Decompress(fileToDecompress); } } public static void Compress(FileInfo fileToCompress) { using (FileStream originalFileStream = fileToCompress.OpenRead()) { if ((File.GetAttributes(fileToCompress.FullName) & FileAttributes.Hidden) != FileAttributes.Hidden & fileToCompress.Extension != ".gz") { using (FileStream compressedFileStream = File.Create(fileToCompress.FullName + ".gz")) { using (GZipStream compressionStream = new GZipStream(compressedFileStream, CompressionMode.Compress)) { originalFileStream.CopyTo(compressionStream); Console.WriteLine("Compressed {0} from {1} to {2} bytes.", fileToCompress.Name, fileToCompress.Length.ToString(), compressedFileStream.Length.ToString()); } } } } } public static void Decompress(FileInfo fileToDecompress) { using (FileStream originalFileStream = fileToDecompress.OpenRead()) { string currentFileName = fileToDecompress.FullName; string newFileName = currentFileName.Remove(currentFileName.Length - fileToDecompress.Extension.Length); using (FileStream decompressedFileStream = File.Create(newFileName)) { using (GZipStream decompressionStream = new GZipStream(originalFileStream, CompressionMode.Decompress)) { decompressionStream.CopyTo(decompressedFileStream); Console.WriteLine("Decompressed: {0}", fileToDecompress.Name); } } } } } } ```

Original source