Comments posted to this topic are about the item Generate two-dimensional QR Code® bar codes in an SSRS report
This is a great introduction to a robust purely internal solution. I would like to recommend Jason Thomas' solution of building a dynamic URL image call to an external service if the data isn't overly sensitive and the amount of calls is relatively low.
Great, detailed article. Thanks.
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My blog at https://sqlkover.com.
MCSE Business Intelligence - Microsoft Data Platform MVP
Mr or Mrs. 500
1. I agree with Steph on using an external service and a link. If that is not possible, then do not install the dll into the GAC as it will cause future headaches in the future for sure. Instead, just reference the dll through a simple path file.
2. Fully test the QR Code by scanning them though a real scanner device not just a software one if your reports containing any barcode will be printed and read by real scanners out there. Barcoding seems to be simple (and it is) if it's performed correctly which means you use a good barcode encoder (we can help on this), you test it with a real device AND you get it verified by using a verifier device.
3. By the way, the link to the QR Code spec file is illegal. Look, QR Code is public BUT you have to pay for a license to ISO organization! That pdf file has this watermark at every page
"Licensed to SCANBUY, INC./ASHISH MUNI
ISO Store order #:762844/Downloaded:2006-08-01
Single user licence only, copying and networking prohibited"
The last phrase is far than clear
After trying the code, the images generated seem unreadable by a cell phone. Is that expected somehow?
The online code reader at zxing does recognize it, but iPhone or Lumia phones were unable to read it
To tell you the truth, I wrote this as a way of learning how to do QR Codes. I need a project when I want to learn something new.
It took me a long time to figure out this much. It's probably not optimal. I just wanted to share what I had learned in the hopes that somebody else might teach me a little more.
The QRCode.Net project (http://qrcodenet.codeplex.com/[/url]) looks to be a little more robust, but I haven't found my way into it yet. If anybody can point me in a direction I will write another article if I get it to work and if it works better.
Thanks Stan for clarifying. I agree with you, it is worth investigating 🙂
So far, we know that the QR codes created with the tools in this article are not compatible with all devices.
Mr or Mrs. 500
Tell me what code value you tried to encode and send me the QR Code you got there. Look, smart devices run barcode reader software and they have bugs as any other software. Again, they are not truly barcode reader scanners. So it could be an issue related to the QR Code encoder OR to the software reader running on your device.
I created a JPG from the string "SQL Server Central" you can download here:
Thanks a lot Stan. I got the same results with your image so far. The phone cannot read it.
Other QR codes from the web seem OK to phones, I wonder what's missing here.
I started working on QR Codes for a work project that was going to be on a secure server not connected to the Internet, so the external service was not an option. I wasn't able to come up with anything and the requirement was dropped, but it bugged me and I just decided to figure out how to generate QR Codes programmatically.
I got this far, and I thought I might just share my knowledge on the chance that somebody else would show me a better way.
Try downloading the binaries and application from here...
...and use the Gma.QrCodeNet.Demo.exe executable to generate some QR Codes and see if your phone can decipher them.
If it can, I am going to try to figure out how to use the accompanying Gma.QrCodeNet.Encoding.dll.
I have tried before, but got nowhere. Maybe this time will be different.
Thanks Stan. I have downloaded and run the code from the link you shared ("Just launched new open source project QrCode.Net at http://qrcodenet.codeplex.com").
The QR codes seem to work, however, non-regular characters are not understood properly (like Ñ, Å, Æ). The standard 128 ASCII chars work fine, so it could work with URLs.
I guess this code could be used as a DLL in Reporting Services and then solve the problem (to some point...)
Looking at that page again, there may be enough information for me to get it to work. I will try it this weekend.
After trying the code, the qr code images generated[/url] seem unreadable by a cell phone. Is that expected somehow?
The onlineqr code reader[/url] at zxing does recognize it, but iPhone or Lumia phones were unable to read it
Have you tried to use any android-based phone to read the QR code? I mean it is a little strange that only the online barcode reader can read the barcode.;-)
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