Rename Files before Unzipping

How to rename files before unzipping. The .zip is opened, the filenames are updated (in memory) so that when the .zip is unzipped, the filenames are different. The original .zip is unmodified.

Download Chilkat .NET for 2.0 Framework

Download Chilkat .NET for 1.0 / 1.1 Framework

'  
Dim zipObj As New Chilkat.Zip

        zipObj.UnlockComponent("Anything for 30-day trial")

        ' Open a zip archive containing:
        ' inv.dbf
        ' cust.dbf
        ' rpt.dbf
        ' test.xml
        ' junk.txt
        Dim success As Boolean
        success = zipObj.OpenZip("testData.zip")
        If (Not success) Then
            MessageBox.Show(zipObj.LastErrorText)
            Exit Sub
        End If

        ' Loop over the entries and rename all files ending in .dbf:
        Dim n As Integer
        Dim i As Integer
        Dim entry As Chilkat.ZipEntry
        n = zipObj.NumEntries
        For i = 0 To n - 1
            entry = zipObj.GetEntryByIndex(i)
            If (entry.FileName.EndsWith(".dbf")) Then
                entry.FileName = entry.FileName.Replace(".dbf", "01.dbf")
            End If
        Next

        ' Now unzip all .dbf files:
        n = zipObj.UnzipMatching("unzipDir", "*.dbf", False)
        If (n < 0) Then
            MsgBox(zipObj.LastErrorText)
        Else
            MsgBox(n.ToString() & " files unzipped!")
        End If

	' These files are created: cust01.dbf, rpt01.dbf, inv01.dbf