<%@ Page Language="C#" AutoEventWireup="true" CodeFile="genQr.aspx.cs" Inherits="genQr" %>
<script>
var qr = "|010754500001200\r2320339993\r01\r1025"; // ตาม format
genQr(qr); //เรียกใช้ function genQr();
</script>
<body>
Tag HTML <div class="genQrPng"> <div> นี้ไปว่างตรงส่วนที่จะให้ QR Code แสดง
</body>
function genQr(genQr) {
var data_post = JSON.stringify({
'genQr': genQr
});
alert(genQr)
$.ajax({
type: "POST",
url: "genQr.aspx/genQrcode",
data: data_post,
cache: false,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (data) {
img = '<img style="width: 110px;height: 110px;position: relative;top: -10px; left: -10px;" src="' + data.d + '">';
img2 = '<img style="width: 200px;height: 200px;position: relative;" src="' + data.d + '"">';
$('.genQrPng').html(img)
$('.genQrPng2').html(img2)
},
error: function (data) { //console.log }
});
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Drawing;
using System.Web.Services;
using System.Web.Script.Services;
using System.Web.Script.Serialization;
using System.Collections.Specialized;
using QRCoder;
public partial class genQr : System.Web.UI.Page
{
[WebMethod]
public static string genQrcode(string genQr)
{
string Empty = genQr;
string code = genQr;
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeGenerator.QRCode qrCode = qrGenerator.CreateQrCode(code, QRCodeGenerator.ECCLevel.Q);
System.Web.UI.WebControls.Image imgBarCode = new System.Web.UI.WaebControls.Image();
imgBarCode.Height = 95;
imgBarCode.Width = 95;
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);
}
return imgBarCode.ImageUrl;
}
}
}