Generate QR code in C# with database has a 5 columns

Question

alice yang · Answer

The easiest way is to use external library. Free Spire.Barcode is a free library and you can use it to generate QR code easily. https://www.e-iceblue.com/Introduce/barcode-for-net-introduce.html

Mohamed Abedallah · Answer

Your question is not clear enough about the 5 columns. If you mean that you want a barcode type that can store a certain amount of data (for example values from 5 database columns) please read the following article about choosing the correct barcode type: https://www.codeproject.com/Articles/690035/Choosing-the-Right-Barcode-for-Your-Application The article mentions that QR codes can store up to 2953 bytes (binary data) 4296 alphanumeric or 7089 numeric digits. If you want to write QR barcodes using the toolkit mentioned in the article the code will be like this: BarcodeEngine engine = new BarcodeEngine(); BarcodeWriter writer = engine.Writer; RasterImage myImage = RasterImage.Create(800 600 24 300 RasterColor.White); QRBarcodeData data = new QRBarcodeData(); data.SymbolModel = QRBarcodeSymbolModel.Model1AutoSize; data.Value = This is QR Value ; data.Bounds = new LogicalRectangle(0 0 myImage.ImageWidth myImage.ImageHeight LogicalUnit.Pixel); writer.WriteBarcode(myImage data null );

Bikesh Srivastava · Answer

try thisit may be helpful http://www.c-sharpcorner.com/UploadFile/38268a/generating-qr-code-in-C-Sharp/