(VB.NET) Unzip Files to Byte Array

Demonstrates how to unzip each file contained in a .zip to an in-memory byte array.

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/test.zip")
If (success = False) Then
    Debug.WriteLine(zip.LastErrorText)
    Exit Sub
End If


' Iterate of each entry in the zip.
' An entry can be a file or directory entry.  For each file, unzip to a byte array.
Dim numEntries As Integer = zip.NumEntries
Debug.WriteLine("NumEntries = " & numEntries)
Dim i As Integer = 0
While i < numEntries
    Dim entry As Chilkat.ZipEntry = zip.GetEntryByIndex(i)
    If (entry.IsDirectory = False) Then
        Dim fileData() As Byte = entry.Inflate()
        ' Do whatever you wish with the file data...
    End If


    i = i + 1
End While

zip.CloseZip()

Debug.WriteLine("Finished.")