Microsoft Agent Framework vs Semantic Kernel for a Greenfield .NET Agent
For a new .NET agent in 2026, start on Microsoft Agent Framework 1.0. Semantic Kernel is in maintenance mode. Here is the side-by-side and the one case where SK still wins.
Tag: csharp
215 posts · Page 5 of 22
Migrate from ValueTask<T> back to Task<T>: when and why (.NET 11, C# 14)
A practical checklist for reverting ValueTask and ValueTask<T> return types to Task and Task<T>, what breaks at the call sites, how to verify each change, and how to know whether the swap was ever worth it.
Migrate a Blazor Server app to Blazor United (Blazor Web App) in .NET 11
A step-by-step checklist to move a standalone Blazor Server app to the unified Blazor Web App template on .NET 11, keeping every page on InteractiveServer with zero behaviour change.
Migrate from in-process Azure Functions to the isolated worker model (.NET 8 / .NET 11)
A step-by-step checklist to move a .NET in-process Azure Functions app to the isolated worker model before the November 10, 2026 retirement, with csproj diffs, signature rewrites, and a slot-swap rollout.
EF Core ExecuteUpdate vs loading entities and SaveChanges: which should you use?
A decision guide and real benchmark for EF Core 11: use ExecuteUpdate for set-based writes by a predicate, and the load-then-SaveChanges path only when you need the change tracker, interceptors, or a complex object graph.
.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").
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.