Generate QR Code

Question

I want to generate QR Code and after scanning, It will redirect to a web page..Please help... Thanks in advance..

Leon D · Answer

It's very simple to generate and scan qr code with Free Spire.Barcode library: https://www.nuget.org/packages/FreeSpire.Barcode/ Code to generate qr code: BarcodeSettings settings = new BarcodeSettings(); settings.Type = BarCodeType.QRCode; settings.Data = "Hello 123456789" ; settings.Data2D = "Hello 123456789" ; settings.QRCodeDataMode = QRCodeDataMode.AlphaNumber; settings.X = 1.0f; settings.QRCodeECL = QRCodeECL.H; BarCodeGenerator generator = new BarCodeGenerator(settings); Image image = generator.GenerateImage(); image.Save( "QRCode.png" ); Scan qr code: string [] data = Spire.Barcode.BarcodeScanner.Scan( "QRCode.png" , Spire.Barcode.BarCodeType.QRCode);

Mohamed Abedallah · Answer

Using LEADTOOLS the code is as simple as this: *Generate QR RasterImage img= RasterImage.Create(300,300,24,300,RasterColor.White); QRBarcodeData QData = BarcodeData.CreateDefaultBarcodeData(BarcodeSymbology.QR) as QRBarcodeData; BarcodeEngine bEngine = new BarcodeEngine(); QRBarcodeWriteOptions QwriteOptions = bEngine.Writer.GetDefaultOptions(QData.Symbology) as QRBarcodeWriteOptions; QData.Value = "www.facebook.com" ; bEngine.Writer.CalculateBarcodeDataBounds( new LeadRect(0,0,img.Width,img.Height),300,300,QData,QwriteOptions); bEngine.Writer.WriteBarcode(img, QData, QwriteOptions); RasterCodecs _code = new RasterCodecs(); _code.Save(img, @ "QR.PNG" , RasterImageFormat.Png,24); *Read QR and open a web browser. BarcodeData barcode = bEngine.Reader.ReadBarcode(img, LeadRect.Empty, BarcodeSymbology.QR); if (barcode.Value != String.Empty) { Process.Start(QData.Value); } For more information about QR standards and types, see this page: https://www.leadtools.com/help/leadtools/v20/dh/to/qr-code-barcodes-in-leadtools.html

Vincent Maverick Durano · Answer

I googled the term "Generate QR Code" and generate tons of results. Here are a few of them: http://www.hanselman.com/blog/howtodisplayaqrcodeinaspnetandwpf.aspx https://www.codeguru.com/csharp/.net/net_asp/dynamically-generating-qr-codes-in-c.html https://www.codeproject.com/Articles/20574/Open-Source-QRCode-Library Before posting anything in forums, I would really suggest you to do a search at google. Try out different approaches based on the articles you find. Now if you are having issues trying to implement the code you want, then that's the time you post to forums. When asking question related to your problem, you should be specific and state what you've tried so far with relevant information. Good luck!

Archit Shrivastava · Answer

try this, two lines of code for barcode https://www.youtube.com/watch?v=csSo9jzuLNQ

Rupesh Kahane · Answer

Refer below links https://www.aspsnippets.com/Articles/ASPNet-MVC-Dynamically-generate-and-display-QR-Code-Image.aspx http://www.twit88.com/platform/projects/show/mt-qrcode (previously here) http://www.barcodelib.com/net_barcode/barcode_symbologies/qrcode.html http://www.businessrefinery.com/products/barcode_net/barcodes/net-qr-code.html http://www.componentsource.com/products/dbarcode-net-qr-code/index.html http://www.onbarcode.com/products/net_barcode/barcodes/qrcode.html http://www.codeproject.com/KB/cs/qrcode.aspx http://qrcodenet.codeplex.com https://www.c-sharpcorner.com/blogs/how-to-generate-qr-code-using-asp-net