steven-giesel.comadded August 2026
I vibe-coded a small tool to get a grasp on your projects MEMORY.md that is in ~/.claude. claude-memory-admin Over time your project memory grows, so to get an idea on what claude is doing, I built...
Steven Gieselby Steven Giesel1d ago
xUnit.v3 got a new major release. This blog post is more about the consequences of that for your local build and CI/CD pipelines than about the new features.
Steven Gieselby Steven Giesel3d ago51 human-writing confidence
Quite some time passed since I posted a changelog to the .NET Toolbox. And there are big news: The Toolbox is running dotnet native in the browser thanks to wasm and Mono!
Steven Gieselby Steven Giesel3d ago
As always my yearly take on the latest .NET release. In a few months dotnet 11 will be released and I wanted to have a look into some performance metrics.
Steven Gieselby Steven Giesel19d ago51 human-writing confidence
Here a simple scenario: You have a StringComparer and you want to add your own comparer to the mix - for example a "natural sort" order, so "file2" sorts before "file10" instead of after.
Steven Gieselby Steven Giesel19 Jul 2026
Blazor is a bit talkative when it comes to the Developer Console. PageSpeed Insights for example does complain: Browser errors were logged to the console The fix is easy.
Steven Gieselby Steven Giesel12 Jul 2026
LinkedIn: The "professional" network where critical thinking takes a backseat and everyone is an expert in everything.
Steven Gieselby Steven Giesel1 Jul 202651 human-writing confidence
If you use AsSplitQuery anywhere in your codebase, EF Core 11 has a present for you: your queries get faster. By default, EF Core loads everything in one query.
Steven Gieselby Steven Giesel8 Jun 202651 human-writing confidence
.NET has had DeflateStream, GZipStream, ZLibStream, and BrotliStream for a while now. In .NET 11, a new one joins the party: ZstandardStream. And now we get to say "Zstd" in .NET.
Steven Gieselby Steven Giesel18 May 202651 human-writing confidence
Here's a bug that lived in .NET for over four years As in: Reported over 4 years ago. If your BackgroundService threw an exception after its first await, your host would catch it, log a critical...
Steven Gieselby Steven Giesel10 May 202651 human-writing confidence
Microsoft.Extensions.Configuration has had ConfigurationKeyNameAttribute since .NET 6 which it lets you rename the key a property maps to.
Steven Gieselby Steven Giesel26 Apr 202651 human-writing confidence
Some time ago (over 4.5 years ago!) I wrote a blog post titled: "A better enumeration - Type safe from start to end". While cool and so - it had some issues. Let's tackle them!
Steven Gieselby Steven Giesel6 Apr 202651 human-writing confidence
What is the output of that code snippet? Console.Write(new Derived("Test")); public abstract record Base(string Key) { public override string ToString() => Key; } public sealed record...
Steven Gieselby Steven Giesel16 Mar 2026
We have Join. We have LeftJoin. We have RightJoin. But somehow we still don't have a proper full outer join in LINQ. That might come soon!
Steven Gieselby Steven Giesel6 Mar 202651 human-writing confidence
I am using a tool called Handy, which is basically nothing else than speech to text. But it does it so well that I thought, okay, let's give it some broader audience.
Steven Gieselby Steven Giesel2 Mar 2026
Sometimes doing arbitrary stuff feels just good! So let's do that! Spoiler alert and disclaimer: This blog post will generate 0 value in your life.
Steven Gieselby Steven Giesel23 Feb 202651 human-writing confidence
Some time back I wrote about "async2 - The .NET Runtime Async experiment concludes" basically moving the async state machine into the runtime.
Steven Gieselby Steven Giesel15 Feb 202651 human-writing confidence
The first preview of .NET 11 and C# 15 did just release. Some weeks back I did add already an article about that: "Collection Expression Arguments in C# 15+".
Steven Giesel12 Feb 2026
In Dezember 2025 and January 26 I created a small helper tool: the .NET Toolbox. I also made a post about, if you wanna be "up to speed": ".NET Toolbox". I did some bug fixes and updates.
Steven Gieselby Steven Giesel10 Feb 2026
I came across a recent thing, where I hit the limit with the "normal" approach of modeling my entity and had to resort to extension methods.
Steven Gieselby Steven Giesel25 Jan 202651 human-writing confidence
There is a nice proposal which would make collection expressions a bit better - Giving the users the ability to pass in arguments to the creation.
Steven Gieselby Steven Giesel12 Jan 202651 human-writing confidence
Let's start the new year with a bang: I created a new tool called "Toolbox" to offer some helpful tools for your everyday .NET life. Totally free, open-source and everything client-side!
Steven Gieselby Steven Giesel5 Jan 202651 human-writing confidence
Task.Delay fails if you wait longer than 49.7 days. So something like: await Task.Delay(TimeSpan.FromDays(50)); will fail. But why and should you care?
Steven Gieselby Steven Giesel28 Dec 202551 human-writing confidence
Short question, and a short answer: ToListAsync - but why? Let's check the code ToListAsync is defined as: public static async Task<List<TSource>> ToListAsync<TSource>( this IQueryable<TSource>...
Steven Gieselby Steven Giesel15 Dec 2025
I saw mutliple places where people use GitHub runners to do some benchmarking. That can be a tricky thing to do.
Steven Gieselby Steven Giesel9 Dec 202551 human-writing confidence
New helper will be available with .NET 11: MediaTypeMap.GetMediaType and MediaTypeMap.GetExtension which makes the web-development a bit easier!
Steven Gieselby Steven Giesel2 Dec 2025
.NET 9 introduced Guid.CreateVersion7() / Guid.CreateVersion7(DateTimeOffset) methods to create sortable UUIDs / GUIDs based on the time of their creation.
Steven Gieselby Steven Giesel24 Nov 2025
If you are using API Tests with the WebApplicationFactory you might did something like this to have a public Program class: public partial class Program; No more!
Steven Gieselby Steven Giesel19 Nov 2025
In xUnit v2 ITraceOutputHelper was needed (and injected) to make the console output inside your production code visible inside a test - in v3 it is easier: CaptureConsoleAttribute...
Steven Gieselby Steven Giesel10 Nov 2025
Many benchmarks that are using ArrayPool, or more specificly ArryPool<T>.Shared, are not actually measuring a "real" scenarion or the benchmark is flawed in some way.
Steven Gieselby Steven Giesel3 Nov 202551 human-writing confidence