How to use zippackage to create a zip file

Question

I saw a document on MSDN about the ZipPackage class .

The example is not very useful, can someone provide an example about this class?

Answer 1

Here is an example, note that:
- ZipPackage doesn't seem to compress - Generated zip code has junk file "[Content_Types] .xml"
- System.IO.Compression , since .Net 4.5 seems to be a good alternative

In Visual Studio, add a link to "WindowsBase" (without a prefix like "System.IO.")

using System; using System.Linq; using System.Text; using System.IO.Packaging; using System.IO; namespace TestZip { public static class Program { public static void Main(string[] args) { byte[] data = Encoding.UTF8.GetBytes(String.Join("\n", new string[1000].Select(s => "Something to zip.").ToArray())); byte[] zippedBytes; using(MemoryStream zipStream = new MemoryStream()) { using (Package package = Package.Open(zipStream, FileMode.Create)) { PackagePart document = package.CreatePart(new Uri("/test.txt", UriKind.Relative), ""); using (MemoryStream dataStream = new MemoryStream(data)) { document.GetStream().WriteAll(dataStream); } } zippedBytes = zipStream.ToArray(); } File.WriteAllBytes("test.zip", zippedBytes); } private static void WriteAll(this Stream target, Stream source) { const int bufSize = 0x1000; byte[] buf = new byte[bufSize]; int bytesRead = 0; while ((bytesRead = source.Read(buf, 0, bufSize)) > 0) target.Write(buf, 0, bytesRead); } } } 

Answer 2

take a look at this code project -

C # Use Zip archives without external libraries .