generating qr code using asp.net C# (web form)

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can any experts help?

C#

protected void bn_create_Click(object sender, EventArgs e)
        {
            string url = tb_content.Text;
            QRCodeEncoder enc = new QRCodeEncoder();
            Bitmap qrcode = enc.Encode(url);
            
       }

I could make this work with windows form, but not web form. because there is no picture box on web, can anyone help me finish this codes? im using the messaging tool kit.

if u have any other ideas/help it will save my life pls...

Posted 21-Jun-15 18:43pm

saifulbry

Updated 21-Jun-15 20:01pm

Arkadeep De

v2

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3 solutions

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Sarath kumar.N · Answer 1 · 2015-06-21T19:51:00

Solution 1

Please take a look this video. This would be useful to you.

Posted 21-Jun-15 19:51pm

Sarath kumar.N

Arkadeep De · Answer 2 · 2015-06-21T20:04:00

Check this code snippet..
It may help you.

C#

BarcodeLib.Barcode.QRCode barcode = new BarcodeLib.Barcode.QRCode();
     barcode.Data = "123456789012";

     barcode.ModuleSize = 3;
     barcode.LeftMargin = 0;
     barcode.RightMargin = 0;
     barcode.TopMargin = 0;
     barcode.BottomMargin = 0;

     barcode.Encoding = BarcodeLib.Barcode.QRCodeEncoding.Auto;
     barcode.Version = BarcodeLib.Barcode.QRCodeVersion.V1;
     barcode.ECL = BarcodeLib.Barcode.QRCodeErrorCorrectionLevel.L;
     barcode.ImageFormat = System.Drawing.Imaging.ImageFormat.Png;

     // more barcode settings here

     // save barcode image into your system
     barcode.drawBarcode("c://barcode.png");
    
     // generate barcode & output to byte array
     byte[] barcodeInBytes = barcode.drawBarcodeAsBytes();
    
     // generate barcode to Graphics object
     Graphics graphics = ...;
     barcode.drawBarcode(graphics);
    
     // generate barcode and output to HttpResponse object
     HttpResponse response = ...;
     barcode.drawBarcode(response);
    
     // generate barcode and output to Stream object
     Stream stream = ...;
     barcode.drawBarcode(stream);

Link : http://www.barcodelib.com/net_barcode/barcode_symbologies/qrcode.html[^]

Mathew Soji · Answer 3 · 2015-06-21T20:33:00

Solution 3

Please refer below article which talks about how to display a QR code in ASP.NET .

http://www.hanselman.com/blog/HowToDisplayAQRCodeInASPNETAndWPF.aspx[^]

Posted 21-Jun-15 20:33pm

Mathew Soji