C# .NET Core QR Code Generator Library SDK

Integration & Developer Guide for QR Code 2D barcode image generation in C#/VB.NET ASP.NET Core

Generate 2d barcode QR Code images in Visual C# .NET Core with sample C# source code

• Generate, create QR Code in Visual C# .NET Core ASP.NET Core web applications
• Easy to install & integrate barcode QR Code generation library SDK into C# .net core developments
• Generate over 30 linear, 2d barcode images in C#.NET Core including C# .NET Core Data Matrix, C# .NET Core PDF-417, C# .NET Core Interleaved 2/5, C# .NET Core Code 39, C# .NET Core Code 128, C# .NET Core EAN
• Generate QR Code images in C# .net core class library
• Create barcode GS1 QR Code in C# ASP.NET Core web application
• Print QR Code barcode in C# Windows Form project
• Easy to encode QR Code to jpeg, gif, png, tiff, bitmap image files in C# program

C# .NET Core QR-Code Generator Introduction

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QR Code Generator library, SDK & application

Create QR-Code Barcodes in C# .NET Core

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Creating QR-Code barcode in .NET Core C# class example:

   using System;
   using System.Collections.Generic;
   using System.Text;
   using OnBarcode.Barcode;
   using System.Drawing.Imaging;
   using System.Drawing;


   QRCode qrcode = new QRCode();

   // Barcode data to encode
   qrcode.Data = "ONBARCODE";
   // QR-Code data mode
   qrcode.DataMode = QRCodeDataMode.AlphaNumeric;
   // QR-Code format mode
   //qrcode.Version = QRCodeVersion.V10;

   /*
   * Barcode Image Related Settings
   */
   // Unit of meature for all size related setting in the library. 
   qrcode.UOM = UnitOfMeasure.PIXEL;
   // Bar module size (X), default is 3 pixel;
   qrcode.X = 3;
   // Barcode image left, right, top, bottom margins. Defaults are 0.
   qrcode.LeftMargin = 0;
   qrcode.RightMargin = 0;
   qrcode.TopMargin = 0;
   qrcode.BottomMargin = 0;
   // Image resolution in dpi, default is 72 dpi.
   qrcode.Resolution = 72;
   // Created barcode orientation.
   //4 options are: facing left, facing right, facing bottom, and facing top
   qrcode.Rotate = Rotate.Rotate0;

   // Generate QR-Code and encode barcode to gif format
   qrcode.ImageFormat = System.Drawing.Imaging.ImageFormat.Gif;
   qrcode.drawBarcode("C:\\qrcode.gif");

   /*
   You can also call other drawing methods to generate barcodes
             
   public void drawBarcode(Graphics graphics);
    
   public void drawBarcode(string filename);
    
   public Bitmap drawBarcode();
    
   public void drawBarcode(Stream stream);
             
   */

Generate QR Code Barcode Image inside Specified Area (Width & Height)

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To create qr code image inside your specified image width and height, please follow the steps

• Set property AutoResize to true
• Set property UOM (unit of measure) to CM or INCH
• Set property Resolution (dot per inch) to the value, which is highter than your printer's resolution.
• Set property BarcodeWidth and BarcodeHeight to your required image width and height.
• Note: the barcode library will ignore the property X and Y values, and it will calculate the max X and Y for you.

Encode GS1 Standard QR Code Barcodes

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To create GS1 standard QR-Code barcode, please follow the steps

• Set property FNC1 to FNC1.FNC1_1ST_POS (1)
• Set property Data GS1 data. You need around AI code with "()", and followed by AI data, such as "(01)23(02)5555". Here "01", "02" are the AI code, "23", "5555" are the AI data,

QR Code Property Settings & Methods

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More .NET Core C#Barcode Generation Tutorials for Each Barcode

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Barcode Control for C# .NET Core - Bar Code Type Generation

• C#.NET 1D / Linear Barcodes:

Codabar	Code 11 in C#	Code 2 of 5 (Industrial 2 of 5) in C#	Code 39 in C#	Code 93 in C#
Code 128 in C#	EAN 8 in C#	EAN 13 in C#	GS1 128 (UCC/EAN128) in C#	GS1 DataBar (RSS)
Identcode in C#	Intelligent Mail in C#	Interleaved 2 of 5 in C#	ISBN in C#	ISSN in C#
ITF-14 in C#	Leitcode in C#	MSI Plessey in C#	PLANET in C#	POSTNET in C#
RM4SCC in C#	UPC-A in C#	UPC-E in C#

• C#.NET Core 2D / Matrix Barcodes:
  Data Matrix in C# .NET Core, PDF-417 in C# .NET Core, QR Code in C# .NET Core, Micro PDF-417 in C# .NET Core, Micro QR Code in C# .NET Core