Generate QR code in Devexpress can't use lowercase ?

Question

Can't use lowercase letters in Devexpress to generate QR codes? Or is there a library called that can generate lowercase uppercase QR codes with less error ?

Rijwan Ansari · Answer

Hi, Try this https://www.c-sharpcorner.com/article/barcode-and-qrcode-application-in-winforms/

Marvin Reid · Answer

I haven’t tried Spire, but I found the tutorial lightweight, easy to follow and got no errors with the LEADTOOLS link. It gives a small project that you can run in Visual Studio.

Dong Lam Trien · Answer

I read the documentation on the https://www.e-iceblue.com/Knowledgeb...e.BarCode.html net and added the library using Spire.Barcode; into Visual Studio, but got the error below, do you know how to fix this error? library you see attached file https://www.mediafire.com/file/53zu0...rcode.dll/file warning error: The currently targeted framework ".NETFramework,Version=v4.0,Profile=Client" does not include "System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" which the referenced assembly "Spire.Barcode, Version=1.2.5.21040, Culture=neutral, PublicKeyToken=663f351905198cb3, processorArchitecture=MSIL" depends on. This caused the referenced assembly to not resolve. To fix this, either (1) change the targeted framework for this project, or (2) remove the referenced assembly from the project. Have you tried Spire.Barcode and compared with LEADTOOLS SDK which is easier to use and lighter, less error ?

Marvin Reid · Answer

You can use the BarcodeWriter class provided through the LEADTOOLS SDK to create a barcode that has both lowercase and uppercase values. You can set this value through the BarcodeData Value property. You can try the following code to test this. static void WriteQRBarcode(RasterImage image) { QRBarcodeData data = new QRBarcodeData { SymbolModel = QRBarcodeSymbolModel.Model1AutoSize, Symbology = BarcodeSymbology.QR, Value = "TesT" , Bounds = new LeadRect(10, 250, image.ImageWidth, image.ImageHeight) }; QRBarcodeWriteOptions options = new QRBarcodeWriteOptions { GroupNumber = 0, GroupTotal = 0, XModule = 30, ECCLevel = QRBarcodeECCLevel.LevelL, HorizontalAlignment = BarcodeAlignment.Near, VerticalAlignment = BarcodeAlignment.Near }; barcodeEngine.Writer.WriteBarcode(image, data, options); } https://www.leadtools.com/help/sdk/v21/tutorials/dotnet-console-write-1d-and-2d-barcodes-to-an-image.html https://www.leadtools.com/help/sdk/v21/dh/ba/barcodedata-value.html

Dong Lam Trien · Answer

this link i came across, i downloaded their example works fine, i created a new one and followed the instructions on this page it doesn't work and i get the library error using Spire.Barcode; even though i added the library to winform but still getting error warning

Sapna Girish · Answer

Check this link out https://www.c-sharpcorner.com/UploadFile/38268a/generating-qr-code-in-C-Sharp/