How to Generate QR Code in C# Windows Application
QR (Quick Response) Code Generator using C#.NET with Source Code
QR Code generate is a program that generates text into QR Code Image using the messaging toolkit QR code and developed using C# net. and it allows the export image and saves it into your system.
for example, POS System generates QR Code for each item produced and creates a tracking feature that has a QR Code Scanning and by that, the system user will have a better experience using the system.
Features
- Generate QR Code
- Export QR Code as an Image
Tools used:
- Labels
- Picture Box
- Buttons
Library Used
- MessagingToolkit.QRCode
The below code is the one I used to generate QR Code
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using MessagingToolkit.QRCode.Codec;
using System.IO;
using System.Threading;
namespace QR_Code_Generator
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void qrcodeGen()
{
try
{
QRCodeEncoder qrCode = new QRCodeEncoder();
qrCode.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCode.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;
this.PictureBox1.Image = qrCode.Encode(this.txtCode.Text, System.Text.Encoding.UTF8);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void btnGenerate_Click(object sender, EventArgs e)
{
try
{
qrcodeGen();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnExport_Click(object sender, EventArgs e)
{
try
{
if (this.PictureBox1.Image != null)
{
// this.PictureBox1.Image.Save(System.IO.Path.Combine((new Microsoft.VisualBasic.Devices.ServerComputer()).FileSystem.SpecialDirectories.MyDocuments, this.txtCode.Text + ".jpg"));
MessageBox.Show("QR is successfully saved");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
}
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