How to generate dyanamic qr code .

Rajan Kumar

when i fill rs.999 in textbox then generate valid qr code when i put 1000rs then not valid qr code

upi://pay?pa=dqr.40179@icici&pn=ALERT PAY SOLUTIONS PRIVATE LIMITED&tr=DQRCIU012126818073838&tn=QrcodeforDistributorFund&am=1000&cu=INR&mc=5411 -not valid

upi://pay?pa=dqr.40179@icici&pn=ALERT PAY SOLUTIONS PRIVATE LIMITED&tr=DQRCIU012126818073838&tn=QrcodeforDistributorFund&am=999&cu=INR&mc=5411 -valid

2 Replies

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Leon D5y ago
Accepted answer
Free Spire.Barcode library can be used to generate qr code.
https://www.e-iceblue.com/Download/download-barcode-for-net-now.html

The following code example demonstrates how to generate qr code in c#:
using Spire.Barcode;
using System.Drawing;


namespace QRCode
{
    class Program
    {
        static void Main(string[] args)
        {
            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");
        }
    }
}
For more information, visit this link:
https://www.e-iceblue.com/Tutorials/Spire.Barcode/Spire.Barcode-Program-Guide/Create-a-QR-Code-in-C.html
+1
Abhishek Chadha5y ago
You can refer the below article to generate QR code-

https://www.c-sharpcorner.com/article/generate-qr-code-and-save-into-the-database/

and while generating the QR Code you can put the condition
+1