.NET UPC-A Barcode Generator for RDLC Reports

How to generate UPC-A in RDLC Client Reports for .NET application

Generate UPC-A linear barcode images for your RDLC Reports using .NET Barcode Library

Embed UPC-A barcode image generation features into client report RDLC
Completely built in C#.NET and compatible with VB.NET, managed C++ and Borland Delphi for .NET
Strong-named and signed barcode DLL for .NET framework 2.0, 3.0, 3.5 and 4.0
Generate and print UPC-A as images instead of fonts
Automatically calculate UPC-A check digits and appended on the end of the symbol
The generated UPC-A is compatible with International Standard ISO/IEC 15420
Easily customize UPC-A size, data, image and other properties via class library

How to create, print UPC-A barcode in RDLC local reports in ASP.NET, Windows Forms application?

Download RDLC Reports UPC-A Barcode Generator C# library
Install C# DLL to create UPC-A in RDLC reports in ASP.NET, WinForms Projects
Step by Step Tutorial

Introduction of UPC-A RDLC Report Barcode Generator

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UPC-A barcode control library SDK for RDLC local report supports barcode generation and creation in RDLC local report as images with flexible barcode property settings. Users are flexible to customize every aspect of the generated UPC-A barcode including size, rotation, resolution, and color to required one.

OnBarcode.com provides not only UPC-A Barcode Library for .NET RDLC Local Report, but also other linear and 2D barcode controls for RDLC. We provide detailed online tutorial: How to create, print barcodes in RDLC reports?

Linear Barcodes on RDLC Report: Code 39, Code 128, EAN-8, EAN-13, GS1 128, Code 93, UPC-E, Interleaved 2 of 5, Identcode, ISBN, ISSN, Code 25, Leitcode, MSI Plessey, OneCode, Planet, Postnet, RM4SCC, etc
2D Barcodes on RDLC Report: including QR Code, Data Matrix, PDF-417

How to Generate UPC-A in .NET RDLC Local Report Barcode SDK

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This guide simplifies creating and integrating UPC-A barcodes into RDLC Local Reports using C#, optimized for ASP.NET (ASP.NET Framework, MVC) and WinForms (.NET Framework) projects with the ReportViewer Control.

OnBarcode provides step-by-step tutorials about print barcode in RDLC report in C# ASP.NET, Windows Forms application.

How to create barcode in RDLC report in ASP.NET?

How to create barcode in RDLC report in WinForms?

In the above tutorials, you are able to create and print Code 128 barcodes in RDLC reports. Here we will update the demo codes to print UPC-A barcodes in RDLC report files (.rdlc)

Open file Form1.cs in the Visual Studio

Change barcode type from BarcodeType.CODE128 to BarcodeType.UPCA.
Make sure the UPC-A data is 11 or 12 digits.

barcode.Type = BarcodeType.UPCA;

Customizing UPC-A Barcodes for RDLC in ASP.NET/WinForms (C#)

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The OnBarcode C# Barcode Generator library enables granular customization of UPC-A barcodes for RDLC reports using these key properties (optimized for ASP.NET/WinForms integration):

ShowQuietZoneIndicator: Show/hide UPC quiet zone indicator (default = true)
UPCEANLeadDigitSpace: Space between first digit and start character bar (default = 0)
UPCEANTrailDigitSpace: Space between stop character bar and quiet zone indicator (default = 0)
UPCEANLeadTrailDigitSizeRatio: Font size ratio of first/last digits vs. other digits (default = 1.0f)
UPCEANLeadDigitYShift / UPCEANTrailDigitYShift: Vertical offset of first/last digits (adjusts position in RDLC)

Customize UPC-A Quiet Zone Indicator for RDLC

You can show or hide the UPC-A quiet zone indicator in the RDLC reports.

barcode.ShowQuietZoneIndicator = false;

Note: Test the setting to ensure it does not overlap with other RDLC report items (e.g. Textbox, Line).

Customize UPC-A Digit Position/Font Size for RDLC

You can adjust UPC-A text label digit spacing / position to align with UPC-A barcode symbology in RDLC Header/Footer or Table elements.

TextFont : Specify the UPC-A text font family, font size. GS1 recommends "OCR" font.
ShowQuietZoneIndicator: Show/hide UPC quiet zone indicator (default = true)
UPCEANLeadDigitSpace: Space between first digit and start character bar (default = 0)
UPCEANTrailDigitSpace: Space between stop character bar and quiet zone indicator (default = 0)
UPCEANLeadTrailDigitSizeRatio: Font size ratio of first/last digits vs. other digits (default = 1.0f)
UPCEANLeadDigitYShift / UPCEANTrailDigitYShift: Vertical offset of first/last digits (adjusts position in RDLC)

barcode.TextFont = new Font("OCR-B", 16f, FontStyle.Regular);
barcode.UPCEANLeadDigitSpace = 10;
barcode.UPCEANTrailDigitSpace = 10;
barcode.UPCEANLeadTrailDigitSizeRatio = 0.6f;
barcode.UPCEANLeadDigitYShift = -20;
barcode.UPCEANTrailDigitYShift = -20;

Note: Preview or print the RDLC report to confirm UPC-A digits are positioned correctly (no overlap with quiet zones or report elements).

Excessively large UPCEANLeadDigitSpace values may cause the barcode to exceed the RDLC Image report item bounds. Do test with sample data first.

Calculating UPC-A Check Digit for RDLC Reports (C#)

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UPC-A barcodes require a mandatory check digit (MOD 10 calculation) for data integrity in RDLC reports. The library auto-calculates this digit, but understanding the logic ensures valid data input for RDLC.

UPC-A Check Digit Calculation

Assign "odd/even" positions to digits, starting from the rightmost digit (right = odd, moving left = even).
Sum digits in all odd positions, then multiply the result by 3.
Sum digits in all even positions.
Add the totals from steps 2 and 3.
The check digit is the number that makes this total divisible by 10 (if total is already divisible by 10, check digit = 0).

Example for RDLC Data Validation

Input UPC-A data: 12345678901 (11 digits)
Calculated check digit: 2
Full UPC-A code (for RDLC): 123456789012

Summary

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The core workflow for generating UPC-A in an RDLC Local Report is
1. Initialize Linear barcode object
2. Input 11/12-digit UPC-A data
3. Set barcode type as BarcodeType.UPCA
4. Generate, customize UPC-A barcode byte stream
5. Bind barcode binary data to the RDLC Image report item
6. Render through the ReportViewer Control (ASP.NET/WinForms)

Key UPC-A customizations for RDLC
Quiet zone indicator visibility (ShowQuietZoneIndicator), digit spacing (UPCEANLeadDigitSpace/UPCEANTrailDigitSpace), and digit font size/position (UPCEANLeadTrailDigitSizeRatio/UPCEANLeadDigitYShift).

Critical UPC-A rules for RDLC
Mandatory MOD 10 check digit (auto-calculated by the library), compliance with quiet zone standards, and validation of input data (11/12 digits) to avoid encoding errors in ASP.NET/WinForms projects.

Common Asked Questions

What is a GTIN-12 UPC-A barcode?

GTIN-12 is a 12 digits Global Trade Item Number. It is usually encoded in UPC-A barcode. The 12 digits Global Trade Item Number includes 11 digits of data message, and one digit of check sum digit. Using RDLC Barcode Generation Library, you can input 12-digit GS1 numeric data or 13-digits data with checksum digit in report barcode item data source.

What is the difference between UPC-A and UPC-E?

Both of UPC-A and UPC-E are UPC barcode. UPC-A is a 12-digit barcode, and UPC-E is a compressed UPC-A with 6 digits code. The UPC-E will be used in limited space for a barcode. You can create both UPC-A and UPC-E images in RDLC reports in report designer and preview UPC barcode in report viewer using .NET RDLC barcode library.

What is the difference between EAN-13 and UPC-A?

UPC-A Format barcodes have traditionally been used in the North America (USA and Canada), whereas EAN-13 format barcodes have been used throughout the rest of the world. RDLC Barcode Generator SDK supports both UPC and EAN with add-on symbol barcode generation in RDLC reports in .NET C#/VB.NET class, ASP.NET Core, WinForms, WPF applications.

What is the minimum & maximum size for a UPC-A barcode?

The Minimum X-dimension for the UPC-A barcode is 0.0104 inches.
The Maximum X-dimension for the UPC-A barcode is 0.0260 inches

You can apply the UPC-A barcode X-dimension and Y-dimension in RDLC report item proeprty settings in report designer using OnBarcode .NET RDLC Barcode Generator library.