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Generate QR Codes With QRCoder: .NET 10, QRCoder 1.8.0, SVG renderer - #2279
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Retarget both projects to net10.0 and bump QRCoder to 1.8.0 and the test packages. GeneratePng renders black on white again; the coloured call moves to GeneratePngBranded. Add GenerateQRCodeSvg with SvgQRCode. QrCodesDb uses ConcurrentDictionary with TryAdd. Drop the stray semicolon on @model, switch to MapStaticAssets, and add PNG and SVG output tests.
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Article: https://code-maze.com/aspnetcore-generate-qr-codes-with-qrcoder/
Updates the QRCoder sample for the article refresh. Only
dotnet-client-libraries/QRCoderchanges.GeneratePng()renders black on white again withGetGraphic(20), which is what the article's first screenshots show. The red on dark blue call moves to a separateGeneratePngBranded()method with its own "Branded" entry, which the article's Colors section points at.GenerateQRCodeSvg()method and "SVG" entry, rendering the same text withSvgQRCodeas adata:image/svg+xmlURI.QrCodesDbis registered as a singleton, so its store becomes aConcurrentDictionary<string, byte[]>andAddusesTryAdd(noContainsKeyplusAddrace).@model HomeModel;loses the stray semicolon.Program.csusesMapStaticAssets()and.WithStaticAssets()like the .NET 10 MVC template, in place ofUseStaticFiles().No
usingwas added to anyCreateQrCode()result: disposing the renderer already disposes theQRCodeDatait was given.Package versions, re-queried on NuGet on 2026-10-10 (latest stable):
Local run on SDK 10.0.302, runtime 10.0.10: build 0 warnings and 0 errors, 3 of 3 tests passed,
dotnet list package --vulnerable --include-transitiveclean on both projects. The app was run and all six images decoded in a browser.