VB.NET Barcode Encoding / Generating Control - How to Encode Valid Barcode Data

VB.NET Barcode Data Encoding Tutorial

Use VB.NET to encode Unicode & GS1-compatible barcode data

It works well throughout my whole project. And barcoding features are easy to be implemented with the help of guide documents.

- Kevin Cox, US

How to encode Unicode and valid data to generate GS1-compatible barcode using VB.NET

Professional barcode data encoding class library used for VB.NET applications
Mature VB.NET 1d & 2d barcode generating / implementing component since 2004
High-quality barcode encoder for .NET, VB.NET, ASP.NET web service / html page, VB.NET applications
Offer free download & simple VB.NET sample codings to encode GS1-compatible barcode data
Able to encode Unicode and generate linear & 2d bar code images in VB.NET barcoding system
Easy to encode,generate barcode data to show barcode in VB.NET WinForms, VB.NET Crystal Report
Get source code to generate code in Visual Studio VB.NET program
Automatically calculate and add check digit for linear barcodes/ postal barcode in VB.NET

Encode GS1 Barcode

Encode Unicode

Supported Barcodes

Apart from encoding those common numeric digit & alphanumeric data, Visual Basic barcode encoding & generating class library SDK from OnBarcode.com also supports encoding GS1-compatible data and Unicode in .NET Framework. This VB.NET barcode encoding dll can be used in WinForms.NET, ASP.NET, Crystal Reports and RDLC Reports. In addition, VB.NET barcode recognition are availabe with .NET Barcode Reader.

For VB.NET developers, OnBarcode also provides other complete VB.NET barcode manuals here:

VB.NET Barcode Generation Tutorial - How to generate & print barcode graphic labels in VB.NET projects
VB.NET Barcode ASP.NET Tutorial - How to stream & create barcodes in ASP.NET web applications using VB.NET
VB.NET Barcode WinForms Tutorial - How to draw & paint multiple barcodes pictures in VB.NET Windows Forms
VB.NET Barcode Imaging Tutorial - How to programmatically design barcodes using VB.NET code to adjust image settings

How to Encode GS1 Barcode Using VB.NET Class Codes

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VB.NET barcode encoding control owns the GS1-compatible data encoding function, so it can easily export & display these GS1 compatible barcode images encoding numbers with VB.NET scripting. Please install the barcode plugin by adding it to reference and toolbox first.

The following example text string will illustrate how to use VB.NET class codes to encrypt those GS1-compatible barcodes (GS1 DataBar, EAN-128/GS1-128, ITF-14, Data Matrix, and QR Code). Default value is Png, while you can output image in Gif, Jpg, Tif via VB.NET.

Generate GS1 DataBar Barcode in VB.NET Class


   Dim gs1_databar As New Linear()
   gs1_databar.Type = BarcodeType.RSS14
   gs1_databar.Data = "01666663333300"

   ' GS1 DataBar Size Settings
   gs1_databar.UOM = UnitOfMeasure.PIXEL
   gs1_databar.X = 2
   gs1_databar.Y = 82
   gs1_databar.LeftMargin = 20
   gs1_databar.RightMargin = 20

   ' GS1 DataBar Image Format Setting
   gs1_databar.Format = System.Drawing.Imaging.ImageFormat.Gif

   ' Save GS1 DataBar to C:\
   gs1_databar.drawBarcode("C://vb-net_gs1_databar.gif")

Generate GS1-128/EAN-128 Barcode in VB.NET Class


   Dim gs1_128 As New Linear()
   gs1_128.Type = BarcodeType.EAN128
   gs1_128.Data = "(8101)06789900799"

   ' GS1-128/EAN-128 Size Settings
   gs1_128.UOM = UnitOfMeasure.PIXEL
   gs1_128.X = 1
   gs1_128.Y = 80
   gs1_128.LeftMargin = 10
   gs1_128.RightMargin = 10

   ' GS1-128/EAN-128 Image Format Setting
   gs1_128.Format = System.Drawing.Imaging.ImageFormat.Png

   ' Save GS1-128/EAN-128 to C:\
   gs1_128.drawBarcode("C://vb-net_gs1_128.png")

Generate GS1 Compatible ITF-14 Barcode in VB.NET Class


   Dim itf_14 As New Linear()
   itf_14.Type = BarcodeType.ITF14
   itf_14.Data = "1061414199993"

   ' ITF-14 Size Settings
   itf_14.UOM = UnitOfMeasure.PIXEL
   itf_14.X = 1
   itf_14.Y = 76
   itf_14.N = 2F

   ' ITF-14 Bearer Bar Settings
   itf_14.BearerBarHori = 2
   itf_14.BearerBarVert = 2

   ' ITF-14 Image Format Setting
   itf_14.Format = System.Drawing.Imaging.ImageFormat.Png

   ' Save ITF-14 to C:\
   itf_14.drawBarcode("C://vb-net_itf_14.png")

Generate Compatible Data Matrix Barcode in VB.NET Class


   Dim data_matrix As New DataMatrix()

   ' Set Data Matrix barcode data to encode
   data_matrix.Data = "(8101)06789900799"

   ' Set Data Matrix data mode
   data_matrix.DataMode = DataMatrixDataMode.ASCII

   ' Data Matrix format mode
   data_matrix.FormatMode = DataMatrixFormatMode.Format_16X16

   ' Set Data Matrix to be GS1 Compatible
   data_matrix.FNC1 = FNC1.FNC1_1ST_POS

   ' Set Data Matrix barcode size;
   data_matrix.UOM = UnitOfMeasure.PIXEL
   data_matrix.X = 4
   data_matrix.LeftMargin = 8
   data_matrix.RightMargin = 8
   data_matrix.TopMargin = 8
   data_matrix.BottomMargin = 8

   ' Generate Data Matrix and encode it to gif format
   data_matrix.ImageFormat = System.Drawing.Imaging.ImageFormat.Gif
   data_matrix.drawBarcode("C:\vb-net_data_matrix.gif")

Generate Compatible QR Code Barcode in VB.NET Class


   Dim qr_code As New QRCode()

   ' Set QR Code barcode data
   qr_code.Data = "(8101)06789900799"

   ' Set QR Code data mode
   qr_code.DataMode = QRCodeDataMode.Auto

   ' Set QR Code to be GS1 Compatible
   qr_code.FNC1 = FNC1.FNC1_1ST_POS

   ' Set QR Code barcode size;
   qr_code.UOM = UnitOfMeasure.PIXEL
   qr_code.X = 4
   qr_code.LeftMargin = 16
   qr_code.RightMargin = 16
   qr_code.TopMargin = 16
   qr_code.BottomMargin = 16

   ' Save created QR Code to png file format
   qr_code.ImageFormat = System.Drawing.Imaging.ImageFormat.Png
   qr_code.drawBarcode("C:\vb-net_qr_code.png")

How to Encode Unicode into Barcode Using VB.NET

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Besides encoding ISO 8859-1 standard data, Onbarcode.com's VB.NET barcode encoder can also encode other data, such as Arabic, Cyrillic, Greek, Hebrew. And users can encode these special characters through the Unicode encoding function of our VB.NET Barcode Generator.

The following VB.NET codes are used to encode Unicode into two-dimensional barcode symbology QR Code, Data Matrix and PDF417. For more, you can input VB.NET code to change barcode height, color and other properties.

Please note that, the following VB.NET code uses Base64[] conversion method to encode Unicode. Therefore, to scan and obtain original data, you need to convert the decoded data back to original data via Base64[] conversion.