(VB.NET) List Files/Directories in Zip by Index

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Demonstrates how to iterate over the files and directories in a zip archive by index.

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.


Dim zip As New Chilkat.Zip

Dim success As Boolean = zip.OpenZip("qa_data/zips/sample.zip")
If (success <> True) Then
    Debug.WriteLine(zip.LastErrorText)
    Exit Sub
End If


Dim numEntries As Integer = zip.NumEntries
Dim i As Integer = 0

Dim entry As Chilkat.ZipEntry

While i < numEntries
    entry = zip.GetEntryByIndex(i)
    ' Note: In the ZIP file format, it is not required for a ZIP file to contain explicit directory entries. 
    ' However, explicit directory entries can be included for convenience and compatibility with certain ZIP file processing tools and software.
    ' An explicit directory entry in a ZIP file is an entry that specifically represents a directory, rather than a file. 
    ' It usually has a directory name with a trailing slash (/) and zero-length content.
    If (entry.IsDirectory) Then
        Debug.WriteLine(i & ": " & entry.FileName & " (directory)")
    Else
        Debug.WriteLine(i & ": " & entry.FileName)
    End If


    i = i + 1
End While

' Sample output:

' 0: aaa/ (directory)
' 1: aaa/pigs.json
' 2: bbb/ (directory)
' 3: bbb/base64Cert.txt
' 4: bbb/sub1/ (directory)
' 5: bbb/sub1/brasil_cert.pem
' 6: bbb/sub2/ (directory)
' 7: bbb/sub2/penguins.gif
' 8: bbb/sub2/starfish.jpg
' 9: hamlet.xml
' 10: hello.pdf

zip.CloseZip()