CODEWITHSUNDEEP
c#searchzip
Entity
Entity

Reputation: 8202

C# List of files in an archive

I am creating a FileFinder class, where you can do a search like this:

    var fileFinder = new FileFinder(
                         new string[]
                             {
                                  "C:\\MyFolder1",
                                  "C:\\MyFolder2" 
                             }, 
                         new string[]
                             {
                                  "*.txt",
                                  "*.doc"
                             } );
    fileFinder.FileFound += new EventHandler<FileFinderEventArgs>(FileFinder_FileFound);
    DoSearch();

If I executed that code, FileFinder_FileFound would be called every time a *.txt or *.doc file was found in C:\\MyFolder1 and its subfolders, or C:\\MyFolder2 and its subfolders.

Sot the class looks through subfolders, but I also want it to look through any zip files it comes across, as if they were folders. How can I do this? It would be preferable that no temporary files be created...

EDIT Forgot to mention this is not a personal project; its for a commercial application I'm working on with my company.

Upvotes: 3

Views: 4152

Answers (3)

Csaba Toth
Csaba Toth

Reputation: 10697

If you can use .NET 4.5 or higher you can now finally use ZipArchive. It's in the System.IO.Compression namespace. The example uses ZipFile class too, which requires not just referencing System.IO.Compression assembly, but System.IO.Compression.FileSystem assembly too (both contribute to the same namespace). MSDN: http://msdn.microsoft.com/en-us/library/system.io.compression.ziparchive%28v=vs.110%29.aspx

So if your finder encounter a zip file, you can do something like this (the gist of it):

using System;
using System.IO;
using System.IO.Compression;

using (ZipArchive archive = ZipFile.OpenRead(zipFilePath))
{
    foreach (ZipArchiveEntry entry in archive.Entries)
    {
        if (entry.FullName.EndsWith(".txt", StringComparison.OrdinalIgnoreCase) ||
            entry.FullName.EndsWith(".doc", StringComparison.OrdinalIgnoreCase))
        {
            // FileFinder_FileFound(new FileFinderEventArgs(...))
        }
    }
}

Upvotes: 2

Kamyar
Kamyar

Reputation: 18797

Checkout System.IO.Packaging Namespace available in .NET 3.5 and higher. You'll find some good answers here

Upvotes: 1

Pieter van Ginkel
Pieter van Ginkel

Reputation: 29632

You should use a tool like SharpZipLib: http://www.icsharpcode.net/opensource/sharpziplib/. This allows you to list the files in a .zip file and, optionally extract them.

The .NET framework does not natively support using the FileFinder to search in .zip files.

Upvotes: 1

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