Special characters in Code128

Nov 2, 2015 at 4:12 PM
Edited Nov 4, 2015 at 12:34 PM
I created a SSRS Report which contains a few Code128 Barcodes. The Barcodes are generated using the latest zxing.net library. I would like to include tabs (char(9)) in an Code128 Barcode. But it fail with the following exception message:

System.ArgumentException: Bad character in input:

Needless to say that it works like a charm without the tabulator character.

The GetBarCodeHorizontal is used in the report to generate the barcodes. However, for testing purpose i wrapped it into a visual studio vb project:
Class MainWindow
    Public Function GetBarCodeHorizontal(ByVal s As String, ByVal width As Integer) As Byte()
        Dim writer As New ZXing.BarcodeWriter()
        Dim ms As System.IO.MemoryStream = New System.IO.MemoryStream()

        writer.Format = ZXing.BarcodeFormat.CODE_128
        writer.Options = New ZXing.Common.EncodingOptions
        writer.Options.Width = width
        writer.Options.Height = 60
        writer.Options.PureBarcode = False
        'writer.Options.Hints.Add(ZXing.EncodeHintType.CHARACTER_SET, "UTF-8")

        Dim bmp As System.Drawing.Bitmap = writer.Write(s)

        bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Png)
        Dim imagedata As Byte()
        imagedata = ms.GetBuffer()
        Return imagedata
    End Function

    Private Sub MainWindow_OnLoaded(sender As Object, e As RoutedEventArgs)
            Dim barCodeHorizontal = GetBarCodeHorizontal("3999999   80  1XXXXXX8    r1XX3", 200)
        Catch ex As Exception
        End Try
    End Sub
End Class
  • How can i solve this problem?
  • Is this a limitation of the zxing library?
  • Is there any suitable workaround (or maybe even another library)?
Thank you for your help.
Regards, Xenolith