(VB.NET UWP/WinRT) Create Zip Excluding Files Matching Patterns

How to create a .zip archive excluding (skipping) files that match a set of wildcarded patterns.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

' This example requires 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.NewZip("test.zip")
If (success <> True) Then
    Debug.WriteLine(zip.LastErrorText)
    Exit Sub
End If


' Create a string array object with our set of filename patterns
' to be excluded:
Dim sa As New Chilkat.StringArray
success = sa.Append("*.bak")
success = sa.Append("*.tmp")

' Tell the zip object to use these exclusions:
zip.SetExclusions(sa)

' Append a directory tree.  The AppendFiles does
' not read the file contents or append them to the zip
' object in memory.  It simply appends references
' to the files so that when WriteZip (or WriteZipAndClose,
' or WriteExe, etc.) is called, the files are compressed
' and encrypted.
Dim recurse As Boolean = True
success = Await zip.AppendFilesAsync("/temp/a/*",recurse)

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


Debug.WriteLine("Zip Created!")