.NET 11 Can Round-Trip a Double as Hex, Bit for Bit
.NET 11 Preview 4 teaches double, float, and Half to format with the X specifier and parse with NumberStyles.HexFloat, producing the same IEEE-754 hex text as C printf("%a").
Tag: csharp
300 posts · Page 14 of 30
Fix: ObjectDisposedException: Cannot access a disposed context instance
Your fire-and-forget task captured a request-scoped DbContext that the DI scope already disposed. Resolve a fresh context inside the task with IServiceScopeFactory or IDbContextFactory.
EF Core 11 Preview 4: Stop Retyping --project and --startup-project with .config/dotnet-ef.json
EF Core 11 Preview 4 lets the dotnet ef tool read default option values from a .config/dotnet-ef.json file, so split solutions no longer force you to pass --project and --startup-project on every command.
How to use query splitting to avoid a cartesian explosion in EF Core 11
When you Include two sibling collections, EF Core 11 returns the cross product and your row count explodes. Here is how AsSplitQuery fixes it, how to turn it on globally, and the consistency and ordering gotchas to watch for.
How to run fire-and-forget work safely in ASP.NET Core with BackgroundService
Calling Task.Run from a controller loses work on shutdown, swallows exceptions, and captures disposed scoped services. The safe pattern is a bounded Channel queue drained by a BackgroundService that opens a fresh scope per work item and drains in-flight work on StopAsync.
How to use ExecuteUpdate and ExecuteDelete for bulk writes in EF Core 11
A complete guide to ExecuteUpdate and ExecuteDelete in EF Core 11: the SQL they emit, the change-tracker gotcha that silently overwrites your bulk write, transactions, concurrency control with the affected-row count, and the EF Core 10 delegate setters that let you build conditional updates with plain if statements.
How to use scoped services inside a BackgroundService in ASP.NET Core 11
A BackgroundService is a singleton, so it cannot inject a scoped service like a DbContext directly. Take IServiceScopeFactory, open one scope per unit of work with CreateAsyncScope, resolve inside it, and dispose it when the work is done.
MAUI vs Avalonia vs Uno Platform: which should you pick in 2026?
For a new .NET cross-platform desktop and mobile app in 2026, pick Avalonia when you need a single rendered control set across all targets, Uno when you must reach the browser too, and MAUI only when you actually need native iOS and Android plus first-party Microsoft support.
Azure Functions isolated worker vs in-process in .NET 11: which should you pick in 2026?
Pick the isolated worker model for every new Azure Functions app on .NET 11 in 2026, and migrate any remaining in-process apps before the November 10 retirement deadline.
Blazor Server vs Blazor WebAssembly vs Blazor United in .NET 11: which should you pick in 2026?
For any new Blazor app on .NET 11, scaffold a Blazor Web App (the template formerly nicknamed Blazor United) and pick render modes per page. Server-only and WebAssembly-only templates only still make sense in narrow cases.