- 12/2/2025
- 1 minute read
Mime Type Helper in .NET 11
New helper will be available with .NET 11: MediaTypeMap.GetMediaType and MediaTypeMap.GetExtension which makes the web-development a bit easier!
Hey, I'm Steven a .NET Developer in Switzerland. I am a Microsoft MVP. Also, this blog is open source on GitHub.
Recent Posts
- 11/24/2025
- 1 minute read
Using sortable UUID / GUIDs in Entity Framework
.NET 9 introduced Guid.CreateVersion7() / Guid.CreateVersion7(DateTimeOffset) methods to create sortable UUIDs / GUIDs based on the time of their creation. This can be particularly useful in databases where you want to maintain a chronological order of records (plus some perf benefits).
Currently, there is no native way to configure Entity Framework to use these methods when generating new GUIDs for primary keys. But we can do this on our own.
- 11/19/2025
- 1 minute read
No more public partial class Program in .NET 10
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!
- 11/10/2025
- 1 minute read
Capturing Console Output in xUnit.v3
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
- 11/3/2025
- 4 minute read
ArrayPool Benchmarks: We have a problem
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. Let's examine a bit on what is going on.
- 10/27/2025
- 4 minute read
LinkedIn: "Are you still using new Random() everywhere?"
You need some advice around Random? Sure there is something on LinkedIn for that. Let's have a look.
- 10/20/2025
- 5 minute read
Inlining and structs in C#
In this - somewhat technical and barely usable - blog post, we will have a look at inlining and structs in C#. And how they can optimize performance in some interesting ways.
- 10/6/2025
- 3 minute read
Use CancellationTokens
This is a very small blog post on why you should use CancellationTokens in your API.
- 9/15/2025
- 3 minute read
LinkedIn Benchmarks again
Another day, another dollar. LinkedIn has the tips for you! Performance, performance! Let's get right into it.
- 9/8/2025
- 2 minute read
ToDictionaryAsync retrieves the whole object from the database in Entity Framework
In Entity Framework Core ToDictionaryAsync (and of course) also the the synchronous counter part ToDictionary retrieve the whole object from the database.