C# Barcode Generator in ASP.NET Application
How to create, print barcode label images for ASP.NET web applications with free C# barcode example source code
It works well throughout my whole project. And barcoding features are easy to be implemented with the help of guide documents.
- Kevin Cox, US

Using Free C# Souce Code to Generate Barcode Labels for ASP.NET Web Application & IIS Projects

  • Advanced 1D & 2D C# Barcode Design Library for ASP.NET web projects
  • Easily generate and stream high print-quality barcode images to ASP.NET web pages (runtime)
  • Dynamically draw GTIN barcodes in C# class library for ASP.NET applications
  • All generated barcode images comply with the latest ISO/IEC or GS1 standards
  • Simple to print ASP.NET linear bar codes in C# sample code, like Code 39, Code 128, EAN/UPC, ITF-14, Interleaved 2 of 5, Postal barcodes and so on
  • Support encoding ASP.NET 2d barcode symbols in C# class, like QR Code, Micro QR Code, PDF-417, Micro PDF-417, and Data Matrix
  • Thermal printer support for C# ASP.NET bar coding with simple button click
  • Source code for C# barcode dll provided upon purchase of Unlimited Developer License
Barcode Generator Library for .NET is one of the best .NET Barcode Encoder Control SDK in the market. It completely integrates into ASP.NET C# (& Visual Basic) barcoding applications / web service, as well as Internet Information Services (IIS), C# barcode MVC. Besides, this popular ASP.NET barcode program supports creating linear & matrix barcodes in C# class library, C# Crystal Report.
Recommended here are some more Visual C#.NET barcode implementation tutorial:
  1. Print C# Barcode - using C# to generate barcode in C# Class & Console projects with free barcode trial download
  2. Draw C# Barcode WinForms - using C# to draw & paint multiple barcodes images in C# Windows Forms
  3. Adjust C# Barcode Image - using C#.NET language to encrypt readable barcodes and adjust image properties
  4. Encode C# Barcode Data - using C# to create GS1 barcode (with given number) or encode Unicode in barcode with C# programming
How to Generate, Print Barcode Label using C# in ASP.NET Web Forms Application
  1. Install Barcode Library DLL Solution for ASP.NET.
    Please add OnBarcode.Barcode.ASPNET.dll to your Visual Studio ASP.NET web project.
  2. Add Barcode Library dll component for ASP.NET to Visual Studio Toolbox.
    Right click Toolbox, select Choose Items..., and click Browse... to locate OnBarcode.Barcode.ASPNET.dll.
  3. Copy qrcode.aspx and qrcode.aspx.cs to the web project folder you created.
    Here, we take QR Code as an example. If you want to create linear or other 2d barcodes, please copy respective files to the project folder.
  4. Drag and drop QRCodeWebForm to your ASPX web forms and run the project.
    Then a QR Code is created on website page. Parameters are user-defined. Please view API details from QR Code property settings.
How to Generate Barcode in IIS Streaming using C#
  1. Copy barcode folder and its contents from the downloaded package to your IIS.
  2. Create a new virtual directory and name it barcode.
  3. Restart IIS and navigate to (QR Code encoding alphanumeric sample text): http://YourDomain:Port/barcode/qrcode.aspx?DATA=9876543210
  4. To display or preview a square QR Code image in html or aspx pages, you may directly use an image tag like the sample below: <img src="http://YourDomain:Port/barcode/qrcode.aspx?DATA=0123456789"/>
How to Generate Barcode in ASP.NET C# Class
OnBarcode provides complete C# demo codes for quick barcode label printing. Designers can edit settngs to encode barcode value (ie.string, characters or byte array), control barcode vector image (Gif, Jpeg, Png, Tiff formats) or bitmap, adjust barcode size (width, height) and color, auto check digit calculation. For namespace and method to use, please see the sample below.
  1. Verify that you have installed VS (Visual Studio) 2005, 2008 or 2010.
  2. Add Barcode Library DLL for ASP.NET to your ASP.NET C# project reference.
  3. Copy the C# syntax to your barcode system to create a unique QR Code barcode item on ASP.NET web page.
   // Create a ASP.NET QR Code object
QRCode qrCode = new QRCode();

// Customize QR Code barcode data
qrCode.Data = "ASP.NET C# QR Code";
// Customize QR Code data mode
qrCode.DataMode = QRCodeDataMode.Auto;

// Customize QR Code barcode size
qrCode.X = 2;
qrCode.LeftMargin = 8;
qrCode.RightMargin = 8;
qrCode.TopMargin = 8;
qrCode.BottomMargin = 8;

// Encode created QR Code to png image file and save it to C:\
qrCode.ImageFormat = System.Drawing.Imaging.ImageFormat.Png;
C#.NET Barcode Generation Guides & Tutorials for Each Barcode

Barcode Control for C#.NET - Bar Code Type 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, Paint QR Bar Code in Java, Print QR Code in Software. 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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