Hi @Timo Kinnunen
Microsoft Visual Studio 2022 Blazor Web App template and .Net 8 with rendering. Database access and rendering has been for me a tricky one.
Microsoft official document also has some tutorials about the Database access and data rendering, and it also provide some sample code, you can refer to them:
For Database Access, you can use Entity Framework Core: ASP.NET Core Blazor with Entity Framework Core (EF Core) and View or download sample code.
For the data rendering, you can use Blazor Form Components or Razor Tag Helper to display the data, and you can also use the QuickGrid component to display data in tabular form (see the QuickGrid for Blazor sample app).
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Best regards,
Dillion