C# UPC-A Generator Library SDK

Integration & Developer Guide for UPC-A linear barcode image generation in C#

Generate barcode UPC-A images in Visual C# .NET with complete sample C# source cod

In this tutorial, you learn how to generate, print UPC-A barcode images in .NET using C#.

How to create UPC-A barcodes in ASP.NET, Windows app using C#

  1. Download .NET Barcode Generator Suite
  2. Install C# library to create UPC-A barcodes in .NET
  3. Step by Step Tutorial

C# UPC-A Generator Introduction
UPC-A, also known as Universal Product Code version A , UPC Code, UPC Symbol, GTIN-12, GS1-12, UCC-12, is the most common and well-known barcode symbology in the United States.
C# UPC-A Generator is one of the functions in OnBarcode's Barcode for .NET Generation Controls, which supports generating & printing UPC-A and 20+ other linear & 2D bar codes for C# applications.
OnBarcode C# Barcode Generator makes it easy to generate, create UPC-A and other linear & 2d barcodes in Microsoft Word. Here are some detailed tutorials for C# UPC-A generation and data encoding, size & image setting.

UPC-A Generator library, SDK & application

OnBarcode provides several UPC-A Generator components and software, including .NET UPC-A, Java UPC-A, VB.NET UPC-A, ASP.NET UPC-A, UPC-A Generator.
This document is providing a detailed C# source code about generating UPC-A barcodes in C# class using C# Barcode generation component. Complete UPC-A custmoization settings is included in C# UPC-A generation guide.

How to calculate UPC-A check digit using C#?

Barcode UPC-A checksum digit is based on a module 10 calculation, based on the weighted sum of the values of each of the digits in the UPC number system, menufacturer code, and product code.

The steps below explain how to calculate UPC-A checksum digit.
  1. Consider the right-most digit of the message to be in an "odd" position, and assign odd/even to each character moving from right to left.
  2. Sum the digits in all odd positions, and multiply the result by 3.
  3. Sum the digits in all even positions.
  4. Sum the totals calculated in steps 2 and 3.
  5. The check digit is the number which, when added to the totals calculated in step 4, result in a number evenly divisible by 10.
  6. If the sum calculated in step 4 is evenly disivisible by 10, the check digit is "0" (not 10).

For example, UPC-A barcode data is "12345678901", and its correct check digit sum is "2".

  1 2 3 4 5 6 7 8 9 0 1
Step 1 odd even odd even odd even odd even odd even odd
Step 2 & 3 3 2 9 4 15 6 21 8 27 0 3
Step 4 Total is 98
Step 5 The next number of 98 is 100, which will be evenly divisible by 10.
Step 5 So the check digit is 2. (100-98=2)
Create UPC-A Barcodes in C#
View complete C# source code at How to generate UPC-A barcodes in C# class?
More C# Barcode Generation 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. 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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