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Barcode Generation & Imaging Using VB.NET
Use VB.NET barcode generating class library to set barcode image properties
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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 Use VB.NET class codes to generate, change & print barcode imaging settings

  • A reliable VB.NET barcode image generating control for VB.NET applications
  • Generate & print barcode images using sample VB.NET class codes in .NET projects
  • Simple interface to draw & customize 1d and 2d barcode image properties in VB.NET Reportings
  • Printing high-quality VB.NET QR Code, EAN-13, UPC-A,GS1-128 and other barcode types
  • VB.NET DLL control to create & print barcode images with rich barcode imaging colors
  • Design, display & output VB.NET barcode images in several image formats, like jpg, png, tiff, gif, bmp
  • Able to generate & change barcode images in a transparent background image style
  • Get the VB.NET barcode source code with purchase of the Developer license
Barcode Color
Transparent Barcode
Barcode File Format
VB.NET barcode component SDK from OnBarcode.com has mature barcode image designing functions. This VB.NET barcode control plugin can be used in .NET Framework environment such as Visual Studio VB.NET Class Library, ASP.NET MVC Application, and Crystal Report. It can generate & output barcode images easily and quickly. Besides, there are free sample VB.NET class codes to help .NET users set different barcode imaging properties to meet their barcoding needs. For VB.NET barcode recognition, try .NET Barcode Reader.
Below are more complete tutorial on generating & implementing barcode images in VB.NET programming:
  1. VB.NET Barcode Generation - to create, print barcode image list with VB.NET (Visual Basic) programming with free dll trial download
  2. VB.NET Barcode ASP.NET Streaming - to stream, generate bar code symbology in ASP.NET web applications using VB.NET
  3. VB.NET Barcode WinForms Creation - to draw, paint multiple barcode pictures in VB.NET Windows Forms
  4. VB.NET Barcode for GS1 & Unicode Encoding - to generate, make GS1 barcode label or encode Unicode in VB.NET barcode
Use VB.NET to Generate Barcode Images in Different Colors
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Barcode images can be generated & printed in different color combinations. And VB.NET barcode image generating dll uses some simple VB.NET class codes to construct & save colorful barcode images. Using VB.NET codes, users can generate & customize barcode displaying colors, like image background color, foreground color, and human readable text color.
In the following example, we use OnBarcode.Barcode.WinForms.dll and Code 39 (with number string value) as a sample barcode image type.
Firstly, please add .NET barcode generator dll tool into your VB.NET project reference. Then, users can generate barcode image tag with their desired barcode imaging style. Use OnBarcode.Barcode as the namespace. You can add more VB.NET code to change barcode length / orientation /input, reset barcode type, or store bar code image to database.

   Dim code39 As New Linear()
   code39.Type = BarcodeType.CODE39
   code39.Data = "3333999"
   code39.X = 1
   code39.Y = 76
   code39.LeftMargin = 10
   code39.RightMargin = 10

   ' Customize Code 39 image color
   code39.BackColor = Color.Yellow
   code39.ForeColor = Color.Blue
   code39.TextColor = Color.Black

   ' Draw Code 39 barcode to C:\
   code39.drawBarcode("C://vb_net_code39.png")
Use VB.NET to Generate Transparent Barcode Images
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OnBarcode.com is one of the few barcode image generator providers which can support generating & printing transparent barcode images using VB.NET. Currently, only barcode images in png and gif image format can support this transparent barcode imaging style.
Here are some VB.NET sample code plan to encrypt transparent barcode in VB.NET barcode system. (Barcode type: EAN-13) Please note that with advanced barcoding algorithm, the barcode engine can automatically calculate & adde a check digit for VB.NET linear barcode encryption.

   Dim barcode As New Linear()

   barcode.Type = BarcodeType.EAN13

   barcode.Data = "123456789012"

   barcode.BackColor = Color.Transparent

   barcode.drawBarcode("c://vb_net_ean13.png")
Use VB.NET to Encode Image Formats (JPEG, PNG, GIF, BMP, TIFF)
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VB.NET barcode image generating control from OnBarcode.com supports encrypting & saving generated barcode images in several image file formats, including JPEF, PNG, GIF, BMP and TIFF. Following are some sample VB.NET class codes to save barcode into common image files.
(UPC-A is the sample barcode type).

   Dim upc_a As New Linear()
   upc_a.Type = BarcodeType.UPCA
   upc_a.Data = "12345678901"

   ' Encode UPC-A barcode into jpeg file format and save it to C:\
   upc_a.Format = System.Drawing.Imaging.ImageFormat.Jpeg
   upc_a.drawBarcode("c://vb_net_upca.jpeg")

   
   ' Encode UPC-A barcode into png, gif, bmp or tiff file format:

   ' upc_a.Format = System.Drawing.Imaging.ImageFormat.Png
   ' upc_a.drawBarcode("c://vb_net_upca.png")
   
   ' upc_a.Format = System.Drawing.Imaging.ImageFormat.Gif
   ' upc_a.drawBarcode("c://vb_net_upca.gif")
   
   ' upc_a.Format = System.Drawing.Imaging.ImageFormat.bmp
   ' upc_a.drawBarcode("c://vb_net_upca.bmp")
   
   ' upc_a.Format = System.Drawing.Imaging.ImageFormat.tiff
   ' upc_a.drawBarcode("c://vb_net_upca.tiff")
VB.NET Barcode Generation Guide for Supported Barcode Images
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.NET Barcode Control DLL for VB.NET - Barcodes Generation

OnBarcode is a market-leading provider of barcode imaging generator, reader controls and components for ASP.NET, Windows Forms, WPF, as well Java, Android, iOS (iPhone, iPad) across all major enterprise development platforms. We provides comprehensive tutorials and how-tos for various linear, 2d barcode information, such as C# in ASP.NET, C# .NET, C# Barcode Encoding, C# Barcode Image, VB.NET in ASP.NET, VB.NET Winforms, VB.NET Barcode Encoding. OnBarcode barcode products are supported by RasterEdge ASP.NET Document Viewer, which supports ASP.NET PDF Viewer, ASP.NET MVC Document Viewer, ASP.NET PDF Editor, MVC PDF Viewer. And provide high quality C# Convert PDF to Tiff, C# Convert PDF to Word, C# Convert PDF to HTML, C# Convert PDF to Jpeg images, and their easy and simple documents, like C# PDF SDK, C# extract text from PDF, C# Compress PDF, Print PDF in C# and C# extract image from PDF.
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