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How to create QR Code encode and decode using asp.net ?

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How to create QR Code encode and decode using asp.net ?

Posted 16-Jun-13 7:54am

Updated 28-May-18 7:06am

Comments

[no name] 16-Jun-13 13:57pm

You start by following rule #1 here, http://www.codeproject.com/Articles/64628/Code-Project-Quick-Answers-FAQ#rules

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Solution 1

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Refer to this link

Open Source QRCode Library[^]

Another simple code that you can implement:

1) Download Messaging Toolkit DLL from this link:

MessagingToolkit.QRCode.dll [^]

2)Include its reference into your program and proceed as follows:

C#

using MessagingToolkit.QRCode.Codec;
using MessagingToolkit.QRCode.Codec.Data;
using System.IO;

Encoding:

C#

string yourcode= textBox1.Text;
QRCodeEncoder enc = new QRCodeEncoder();
Bitmap qrcode = enc.Encode(yourcode);
pictureBox1.Image = qrcode as Image;//Displays generated code in PictureBox

Decoding:

C#

QRCodeDecoder dec = new QRCodeDecoder();
textBox2.Text = (dec.decode(new QRCodeBitmapImage(pictureBox1.Image as Bitmap)));

Regards.. :laugh:

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Posted 16-Jun-13 9:33am

Updated 16-Jun-13 18:09pm

v2

Comments

manojmadhuranga 7-Mar-14 23:32pm

Great man...This Codes really Worked for me...

Thanks7872 8-Mar-14 9:16am

Glad to know that this helped you. Cheers..!

manojmadhuranga 10-Mar-14 6:40am

can't we attach a list to the QR Code..?

Member 11302371 19-Dec-15 5:46am

.dll file not generate in toolbox.....

Member 12232091 1-Feb-16 2:19am

is there another alternative for picturebox as i doing a project required qrcode for asp.net?

Member 12302633 29-Feb-16 22:43pm

is there any tool through which I can open .dll file? I want to see the coding of this file..

Member 13471034 19-Oct-17 21:54pm

Good day! How to set a padding?

Member 13847218 13-Jun-18 10:32am

how do decode datetimepicker c#

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Solution 2

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Try google zxing .net port available here http://zxingnet.codeplex.com/[^]

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Posted 16-Jun-13 13:47pm

Comments

Member 11063220 20-Sep-14 17:38pm

Hi,

I have tried the dll and think it is quite well.
Only problem: I found there are two thin white lines, one at the right edge and another at the bottom edge of the encoded image.
I need to know if this is a bug, or any thing I can do?

Thanks a lot for your help!

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