.NET EAN 13 Barcode Generator
How to generate, print EAN-13 barcode labels in asp.net, vb.net.

     BarCode ean13 = new BarCode();
     ean13.Symbology = KeepAutomation.Barcode.Symbology.EAN13;
     ean13.CodeToEncode = "012345678901";
     ean13.generateBarcodeToImageFile("c://ean13-csharp.jpeg");

     Dim ean13 As KeepAutomation.Barcode.Bean.BarCode = New KeepAutomation.Barcode.Bean.BarCode

     ean13.Symbology = KeepAutomation.Barcode.Symbology.EAN13
     ean13.CodeToEncode = "012345678901"
     ean13.generateBarcodeToImageFile("c:/ean13-vbnet.jpeg")

     BarCode ean13 = new BarCode();

     //Set barcode symbology type to EAN13, EAN13Sup2, EAN13Sup5
     ean13.Symbology = KeepAutomation.Barcode.Symbology.EAN13Sup2;

     //Set EAN 13 encoding valid data: 12 numeric digits (the 13th checksum will be automatically added).
     ean13.CodeToEncode = "012345678912";

     // Apply checksum for EAN 13 barcode.
     ean13.ChecksumEnabled = true;
     // Display checksum in the EAN 13 barcode text
     ean13.DisplayChecksum = true;

     // Set EAN-13 image formats in Png, Jpeg, Gif, Tiff ,Bmp, etc.
     ean13.ImageFormat = ImageFormat.Png;

     // Set EAN 13 image size

     // EAN-13 unit of measure, Pixel, Cm and Inch supported.
     ean13.BarcodeUnit = BarcodeUnit.Pixel;
     // EAN 13 image resolution in DPI.
     ean13.DPI = 72;
     // EAN 13 bar module width (X dimention)
     ean13.X = 2;
     // EAN 13 bar module height (Y dimention)
     ean13.Y = 60;

     // Image left margin size. KA. will automatically add a 10X left margin to go with standard..
     ean13.LeftMargin = 0;
     // Image right margin. K.A. will automatically add a 10X right margin to go with standard..
     ean13.RightMargin = 0;
     // EAN 13 image top margin size
     ean13.TopMargin = 0;
     // EAN 13 image bottom margin size
     ean13.BottomMargin = 0;

     // EAN-13 orientation, 90, 180, 270 degrees supported
     ean13.Orientation = KeepAutomation.Barcode.Orientation.Degree0;

     // Supplement code. It should be 2 or 5 digits
     ean13.SupplementCode = "02";
     // Supplement bar height vs primary bar height ratio.
     ean13.SupplementHeight = 0.8f;
     // Space between barcode and supplement barcode
     ean13.SupplementSpace = 15;

     // Set EAN 13 human readable text

     // Display human readable text
     ean13.DisplayText = true;
     // Customize human-readable text font.
     ean13.TextFont = new Font("Arial", 10f, FontStyle.Regular);
     // Space between barcode and text
     ean13.TextMargin = 6;

     // Generate EAN 13 barcodes in image format TIFF
     ean13.generateBarcodeToImageFile("C://barcode-ean13-csharp.tiff");
        
     /* Create EAN-13 barcodes in Stream object
     ean13.generateBarcodeToStream(".NET System.IO.Stream Object");

     Draw & Print EAN-13 barcodes to Graphics object
     ean13.generateBarcodeToGraphics(".NET System.Drawing.Graphics Object");

     Generate EAN-13 barcodes & write to byte[]
     byte[] barcodeInBytes = ean13.generateBarcodeToByteArray();

     Generate EAN-13 barcodes & encode to System.Drawing.Bitmap object
     Bitmap barcodeInBitmap = ean13.generateBarcodeToBitmap();
     */

     Dim ean13 As KeepAutomation.Barcode.Bean.BarCode = New KeepAutomation.Barcode.Bean.BarCode
     ean13.Symbology = KeepAutomation.Barcode.Symbology.EAN13Sup2
     ean13.CodeToEncode = "131310000013"

     'Apply checksum for EAN13 barcode.
     ean13.ChecksumEnabled = True
     'Display checksum in the EAN13 barcode text
     ean13.DisplayChecksum = True

     'EAN13 unit of measure, Pixel, Cm and Inch supported. 
     ean13.BarcodeUnit = KeepAutomation.Barcode.BarcodeUnit.Pixel
     ean13.DPI = 72

     'Set EAN13 image size

     'EAN13 bar module width (X dimention)
     ean13.X = 1
     'EAN13 barcode image width (X dimention)
     ean13.BarCodeWidth = 160
     'EAN13 bar module height (Y dimention)
     ean13.Y = 60

     'Image left margin size, a 10X is automatically added according to specification.
     ean13.LeftMargin = 0
     'Image right margin size, a 10X is automatically added according to specification.
     ean13.RightMargin = 0
     'EAN13 image top margin size'
     ean13.TopMargin = 0
     'EAN13 image bottom margin size'
     ean13.BottomMargin = 0

     'EAN13 Supplimental data settings. 
     'To enable this, you need to set Barcode Symbology into "EAN13Sup2" or "EANSup5" first.

     'Supplement code. It should be 2 or 5 digits
     ean13.SupplementCode = "02"
     'Supplement bar height vs primary bar height ratio.
     ean13.SupplementHeight = 0.8F
     'Space between barcode and supplement barcode
     ean13.SupplementSpace = 15


     'Orientation, 90, 180, 270 degrees supported' EAN13 image bottom margin size
     ean13.Orientation = KeepAutomation.Barcode.Orientation.Degree0
     ean13.ImageFormat = System.Drawing.Imaging.ImageFormat.Tiff

     'Set EAN13 human readable text style
     ean13.DisplayText = True
     ean13.TextFont = New Drawing.Font("Arial", 10.0F, Drawing.FontStyle.Regular)
     'Space between barcode and text
     ean13.TextMargin = 6
     ean13.generateBarcodeToImageFile("C://ean13-vb-net.tiff")