RDLC Barcode How-Tos

PM > Install-Package BarcodeLib.RDLC

In this article

Quick to Create QR Code in Report
Adjust QR Code Dimension Size
Encode QR Code Text
- Unicode text
- GS1 text message
QR Code Colors and Image Settings
- Styling QR Code with colors
- QR Code image settings
QR Code Advanced Configurations

Home > .NET RDLC Reports Barcode > RDLC Reports Barcode Generation Guide > QR Code Barcode Generation Guide in RDLC Reports

.NET RDLC Reports QR Code Barcode Generator

Mature, Easy-to-use .NET RDLC Barcode Generator Library for QR Code

Professional RDLC Reports .NET Barcode Generator for QR Code 2D barcode
Written in C# with integration into .NET framework 2.x, 3.x, and 4.x version
Supporting Visual Studio 2026, 2022, 2019, 2017, and early verions ReportViewer Local Reports (RDLC)
Generate multiple QR Code barcodes in RDLC Report with data from database
Print QR Code 2D barcodes in Report RDLC in Jpg, Png, Gif and Bmp image formats
Create QR Codes images and adjust barcode settings easily with C# and VB.NET
Perpetually royalty-free developer license available for purchase

BarcodeLib provides step by step tutorials for printing barcodes in RDLC reports using C# in ASP.NET and Windows Forms applications.

Introduction

QR-Code is a widely used 2D symbology developed by Denso Wave. It is also known as Quick Response Code, Denso Barcode, QRCode, JIS X 0510, ISO/IEC 18004.

Compatibility: All the QR Code barcode images created with BarcodeLib Barcode for RDLC Report control are definitely compatible with ISO/IEC 18004 bar code symbology specification.

How to Create and Print QR Code in RDLC reports?

Go to c# file where barcode image will be created and customized.
- For ASP.NET web application, open file Default.aspx.cs
- For WinForms application, open file Form1.cs

Comment out or remove the existing LinearRDLC barcode generation code, and insert the following code.

//LinearRDLC barcode = new LinearRDLC();
//barcode.Type = BarcodeType.CODE128;

QRCodeRDLC barcode = new QRCodeRDLC();
barcode.ResizeImage = true;
barcode.ImageWidth = 300;
barcode.ImageHeight = 300;
barcode.ImageFormat = ImageFormat.Png;

Run the ASP.NET web application in Visual Studio:

How to Print QR Code with Specified Size in RDLC Reports

This section explains how to print barcodes with a specified image width and height in RDLC local report files for C# ASP.NET and WinForms applications. The WinForms tutorial is used for demonstration; the same principles apply to RDLC Reports when binding image data to report items.

The following step by step instructions illustrate generating a QR Code with a side length of 3 cm in a C# ASP.NET (.NET Framework) project.

Step 1. QR Code Image Resolution and Size Settings

Open Default.aspx.cs in Visual Studio 2022.

Add the following C# code in the Page_Load method.

Create a new QRCodeRDLC object.
Set the unit of measure to INCH.
Set the QR Code image width and height to 2 inch.
Set the image resolution to 300 ppi (high resolution improves printed quality).

QRCodeRDLC barcode = new QRCodeRDLC();
barcode.ResizeImage = true;
barcode.UOM = UnitOfMeasure.INCH;
barcode.ImageWidth = 2;
barcode.ImageHeight = 2;
barcode.Resolution = 300;
barcode.ImageFormat = ImageFormat.Png;

Step 2. Update the Barcode Image Object in the RDLC Report Designer

Open Report1.rdlc in design mode in Visual Studio.
Select the barcode image item in the report designer. Update the following properties:
- Set Width to 2 inch
- Set Height to 2 inch
Right click the barcode image item and choose Image Properties... in the popup menu.
Navigate to the Size tab, select Fit to size, and click OK.

Step 3. View and Measure the QR Code Size in the RDLC Report

Run the ASP.NET web project in Visual Studio and view the barcodes printed in the report in browser.
Export the report to PDF and measure the QR Code dimensions. The QR Code in the PDF file will measure 2 inches.

How to Encode Text in QR Code in RDLC Reports

Encoding text into a QR Code is straightforward. Assign the desired text to the Data property, and the QR Code RDLC library will convert it into a QR Code image within the report.

Encode QR Code with Unicode Text

To convert Unicode text to a QR Code image, enable the EncodeUnicodeText property. The library will automatically encode the Unicode text supplied in the Data property.

Encode QR Code with GS1 Text Message

To generate a GS1 compliant QR Code, set the FNC1Mode property to QRCodeFNC1Mode.FirstPosition and provide the GS1 defined data format in the Data property.

barcode.FNC1Mode = QRCodeFNC1Mode.FirstPosition;

How to Print QR Code with Colors and Image Settings Applied in Reports

Print QR Code with Styled Colors

Using the RDLC QR Code Generator library, colors can be customized for QR Codes in RDLC reports for C# ASP.NET and WinForms applications.

Customize QR Code module colors using the ModuleColor property.
Customize the background (space modules) color using the BackgroundColor property.

barcode.ModuleColor = Color.Blue;
barcode.BackgroundColor = Color.White;

With the above settings, QR Codes with blue modules are printed in the RDLC report.

High Resolution QR Code Images for Printing

High resolution QR Code images enhance print quality. Set the Resolution property to the desired DPI value.

barcode.Resolution = 300;

When the RDLC report is exported to PDF, the QR Code image will be rendered at 300 dpi, as can be verified by viewing the PDF at 800% zoom in Acrobat.

QR Code Advanced Options in RDLC Reports

The QR Code ISO and GS1 standards define several advanced options, including:

QR Code Data Mode
Error Correction Level (ECL)
QR Code Versions
FNC1

Detailed instructions for applying these options in C# are available here:
How to create QR Code with advaned features customized using C#.

Summary

The core workflow for generating QR Codes in an RDLC Local Report is as follows:

Initialize a QRCode barcode object.
Configure encoding data, size, colors, and advanced options as needed.
Generate the QR Code byte stream.
Bind the byte stream to an RDLC Image report item.
Render the report through the ReportViewer Control in ASP.NET or WinForms.

You can do customization on parameters, include Data (text to encode), UOM, BarcodeWidth (and optionally BarcodeHeight for rectangular QR Codes), Resolution, ForeColor, BackColor, and GS1 specific settings like FNC1. These settings must align with the properties of the RDLC Image report item to ensure accurate rendering.

.NET Barcode Tutorial & FAQ:

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