(VB.NET) Unzip Encrypted Text into a String Variable

Demonstrates how to open an encrypted .zip archive and unzip a text file directly into a string variable.

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

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

Dim zip As New Chilkat.Zip

' Set the password required for decrypting.
zip.DecryptPassword = "myPassword"

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


' Locate the file within the Zip to be unzipped into a string variable:
Dim entry As Chilkat.ZipEntry = zip.FirstMatchingEntry("*.csv")
If (zip.LastMethodSuccess = False) Then
    Debug.WriteLine("No matching entry found.")
    Exit Sub
End If


' lineEndingBehavior:
' 0 = leave unchanged.
' 1 = convert all to bare LF's
' 2 = convert all to CRLF's
Dim lineEndingBehavior As Integer = 0
Dim srcCharset As String = "utf-8"

Dim strCsv As String = entry.UnzipToString(lineEndingBehavior,srcCharset)
Debug.WriteLine(strCsv)