Dynamically generate and display QR code image in ASP.Net c#
QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) .Now a days we have every book and packet in QR code that attached with website .So in this article , we will learn about that how to dynamically generate and show QR code image in asp.net c#
Source Code:-
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title> QR code image in ASP.Net c#</title>
</head>
<body>
<form id="form1" runat="server">
<asp:TextBox ID="txtqccode" runat="server"></asp:TextBox>
<asp:Button ID="btngenerate" runat="server" Text="Generate" OnClick="btngenerate_Click" />
<hr />
<asp:PlaceHolder ID="plBarCode" runat="server" />
</form>
</body>
</html>
Code Behind(c#):-
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using QRCoder;
using System.IO;
using System.Drawing;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btngenerate_Click(object sender, EventArgs e)
{
string code = txtqccode.Text;
QRCodeGenerator qcgenerator = new QRCodeGenerator();
QRCodeGenerator.QRCode qrcode = qcgenerator.CreateQrCode(code, QRCodeGenerator.ECCLevel.Q);
System.Web.UI.WebControls.Image imgbarcode = new System.Web.UI.WebControls.Image();
imgbarcode.Height = 200;
imgbarcode.Width = 200;
using (Bitmap bitmap = qrcode.GetGraphic(20))
{
using (MemoryStream ms = new MemoryStream())
{
bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
byte[] byteImage = ms.ToArray();
imgbarcode.ImageUrl = "data:image/png;base64," + Convert.ToBase64String(byteImage);
}
plBarCode.Controls.Add(imgbarcode);
}
}
}
Note: - You will need to download the QR code dll;
Out-Put:-
Dynamically generate and display QR code image in ASP.Net c#
Reviewed by NEERAJ SRIVASTAVA
on
10:39:00 AM
Rating:
Reviewed by NEERAJ SRIVASTAVA
on
10:39:00 AM
Rating:
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