DotNetZip add files without creating folders

Question

using (ZipFile zip = new ZipFile())
{
    foreach(string file in Directory.GetFiles(folder))
    {
        zip.AddFile(file, Path.GetFileName(file));
    }
    zip.Save("test.zip"));
}

Each time I add a file, it's creating a new subfolder for it.

So I want to end up with:

test.zip
    -  myDoc.doc
    -  myPdf.pdf

but I'm ending up with:

test.zip
    -  myDoc.doc
        -  myDoc.doc
    -  myPdf.pdf
        -  myPdf.pdf

Solution

How about just:

zip.AddFile(file,"");

or

zip.AddFile(file,@"\");

Comments

[fearofawhackplanet]

Thats makes it even worse. A filepath of for example Documents\Process\Practices\text.doc will create a subfolder in the .zip for each level in the path so you end up with test.zip -> Documents -> Process -> Practices -> text.doc.

[Praveen]

@Fosco This works. Is there any complete documentation for this? I am using IonicZip.dll from nuGet.

[Mou]

dotnet zip compression ratio not good. i zip a 152 KB doc file with dotnet zip and when zip was created then i was zip file size was 136KB. is there any tweak exist which create small size zip file. share the knowledge. thanks

[Clay]

@Mou - doc files are now like .zip files, and they are already mostly compressed. There are still sections inside that aren't compressed - so that external programs can read out property/summary information, etc. - but generally, they're already pretty compact.

[Avtandil Kavrelishvili]

@Fosco thank you for great solution. You save my time.