Dateien inkl. Unterverzeichnissen kopieren

Public Sub CopyDirectory(ByVal sourcePath As String, ByVal destinationPath As String)
    Dim sourceDirectoryInfo As New System.IO.DirectoryInfo(sourcePath)

    ' If the destination folder don't exist then create it
    If Not System.IO.Directory.Exists(destinationPath) Then
        System.IO.Directory.CreateDirectory(destinationPath)
    End If

    Dim fileSystemInfo As System.IO.FileSystemInfo
    For Each fileSystemInfo In sourceDirectoryInfo.GetFileSystemInfos
        Dim destinationFileName As String =
            System.IO.Path.Combine(destinationPath, fileSystemInfo.Name)

        ' Now check whether its a file or a folder and take action accordingly
        If TypeOf fileSystemInfo Is System.IO.FileInfo Then
            System.IO.File.Copy(fileSystemInfo.FullName, destinationFileName, True)
        Else
            ' Recursively call the mothod to copy all the neste folders
            CopyDirectory(fileSystemInfo.FullName, destinationFileName)
        End If
    Next
End Sub