Unzip only one file from zip folder using c#

Question

Hi All,
Consider in the folder containing 10 files named like abc.txt, pqr.docx, xyz.txt, etc. I am zipping this folder using c# code. Now I want to Unzip only abc.txt from that zip file. how it's possible using c# code?

Answer 1

Ignoring the challenges of finding an arbitrary file in a subfolder contained within the zip file then you just need to find the zip entry first and then extract it.

static bool ExtractFile ( string zipFile, string filename, string targetPath )
{
    var zip = ZipFile.OpenRead(zipFile);
    var entry = zip.GetEntry(filename);
    if (entry == null)
        return false;

    entry.ExtractToFile(targetPath, true);
    return true;
}

if (!ExtractFile("myzip.zip", "abc.txt", "c:\destination\abc.txt"))
   //Not found

If you need to find the file in an arbitrary subfolder then you'll need to search for it via the Entries.