Are you using Testcontainers in your tests?
Read more here:
https://www.devleader.ca/2024/02/20/testcontainers-in-asp-net-core-a-simplified-beginners-guide/
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#dotnet
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Even more Performance Measurement and Profiling of Roslyn Source-Generators included in Part 3 of Benchmarking Compiler Extensions.
- Wednesday, 2025-08-13
- 17:00 UTC
️ GPT-5 Now in Visual Studio's GitHub Copilot
#devdigest #dotnet #net #microsoft #ide #visualstudio #git #github
A Mistake I Made with ASP.NET Core Middleware
I once added some logging middleware… at the wrong place in the pipeline.
Result? I missed all the early failures.
Lesson: Order matters in ASP.NET Core middleware.
Put logging and error handling before your app-specific stuff.
Learned that one the hard way.
Day 24 of the Genetic Algorithms Bootcamp is live!
Today, we combine Genetic Algorithms + Hill Climbing.
A hybrid memetic approach for faster, smarter optimization in C#.
Chris Woody Woodruff · Day 24: Combining Genetic Algorithms with Hill Climbing: The Hybrid Memetic Approach - Chris Woody WoodruffTraditional genetic algorithms (GAs) excel at global exploration across large search spaces. However, they can struggle to fine-tune solutions with high precision due to their stochastic nature. On the other hand, local search techniques like hill climbing are good at refining individual solutions but easily get trapped in local optima. A memetic algorithm combines both approaches, using GAs for exploration and local search for exploitation. This hybrid strategy has proven effective in complex optimization problems where both breadth and depth of search are required.
Update on the future of Rx.NET versioning:
https://github.com/dotnet/reactive/discussions/2211
The 3 scenarios that seemed to prevail:
1. Keep the System.Reactive packages. Solve problems using hacks (different API surface in build time than in runtime).
2. Introduce System.Reactive.Net packages, keep System.Reactive as a facade.
3. Try the first one in Rx7. If (when?) something breaks, switch to the second one.
A YT summary:
https://www.youtube.com/watch?v=GSDspWHo0bo
GitHubPackaging Plans July 2025 · dotnet reactive · Discussion #2211Our previous announcement that we were going to be moving forward with a new packaging plan for Rx.NET turned out to be premature. The plan, whose main goal is to fix the 'deployment bloat' issues ...
Question: I want to build a light-weight simple UI for Linux on C#
Ideally, I don't large complex dependencies. What are my options?
1) https://avaloniaui.net/
2) https://platform.uno/
3) MAUI -- does not support Linux!
4) https://github.com/GtkSharp/GtkSharp -- development stopped
5) GObject/GTK wrappers? https://gircore.github.io/
avaloniaui.netAvalonia UI – Open-Source .NET XAML Framework | WPF & MAUI AlternativeAvalonia is the open-source .NET UI toolkit that lets you port WPF code to Windows, macOS, Linux, mobile and WebAssembly, all from one XAML codebase. Free forever.
C# is doing a lot of work to explore unions in an OO language. Watch this space, a very hard decision: perhaps more style perhaps than theory.
A very good summary here:
https://github.com/dotnet/csharplang/blob/main/meetings/working-groups/discriminated-unions/union-proposals-overview.md
As inheritance is baked in deep, we don't necessarily need unions -- rather we need closed hierarchies. So one of my favourite low-impact suggestions are `Standard Unions`
https://github.com/dotnet/csharplang/blob/main/meetings/working-groups/discriminated-unions/union-proposals-overview.md#standard-type-unions
Minimal APIs aren’t just for “small” #dotnet apps.
They can ship prod systems faster:
Less boilerplate
Feature-split endpoints
Pair w/ MediatR or CQRS
It’s not less functionality — it’s less ceremony.
.NET Blog · .NET 10 Preview 7 is now available! - .NET BlogFind out about the new features in .NET 10 Preview 7 across the .NET runtime, SDK, libraries, ASP.NET Core, Blazor, C#, .NET MAUI, and more!
via @dotnet : .NET 10 Preview 7 is now available!
https://ift.tt/cKpd4xf
#DotNet10 #Preview7 #DotNet #CSharp #ASPNETCore #Blazor #DotNetMAUI #EntityFrameworkCore #WindowsForms #WPF #SoftwareDevelopment #Programming #DeveloperCommunity #TechNews #OpenSource #Rele…
.NET Blog · .NET 10 Preview 7 is now available! - .NET BlogFind out about the new features in .NET 10 Preview 7 across the .NET runtime, SDK, libraries, ASP.NET Core, Blazor, C#, .NET MAUI, and more!
.NET 10 Preview 7 is now available!
Find out about the new features in .NET 10 Preview 7 across the .NET runtime, SDK, libraries, ASP.NET Core, Blazor, C#, .NET MAUI, and more!
https://devblogs.microsoft.com/dotnet/dotnet-10-preview-7/ #dotnet
.NET Blog · .NET 10 Preview 7 is now available! - .NET BlogFind out about the new features in .NET 10 Preview 7 across the .NET runtime, SDK, libraries, ASP.NET Core, Blazor, C#, .NET MAUI, and more!
Looking for a quick way to share CSharp snippets?
Read more here:
https://www.devleader.ca/2023/11/08/discovering-the-features-of-dotnetfiddle-how-to-compile-c-online/
Your #dotnet app feels slow?
It’s rarely the GC.
More often it’s:
Inefficient LINQ
Blocking async calls
Slow serialization
Profile first: dotnet trace, dotnet-counters, PerfView.
Find the real bottleneck before tweaking GC.
What’s your worst .NET perf pitfall?
#softwaredev
️ GPT-5 Available in Visual Studio with GitHub Copilot
#devdigest #dotnet #net #microsoft #ide #visualstudio #git #github
Visual Studio Blog · GPT-5 Now Available in Visual Studio - Visual Studio BlogWe’re excited to share that GPT-5, OpenAI’s latest frontier model, is now rolling out in GitHub Copilot for Visual Studio.GPT-5 offers faster responses and even better performance for writing and understanding code.
️ Choosing the right .NET core Image for your workload
Medium · All the .NET core Opsy ThingsPart 1: Choosing the right .NET core Image for your workload
Blogged: Running .NET in the browser without Blazor
https://andrewlock.net/running-dotnet-in-the-browser-without-blazor/
In this post I show how to run .NET in your browser without using Blazor, and instead rely on lower-level abstractions provided by [JSImport] and [JSExport]
Andrew Lock | .NET Escapades · Running .NET in the browser without BlazorIn this post I show how to run .NET in your browser without using Blazor, and instead rely on lower-level abstractions provided by [JSImport] and [JSExport]
I'll be speaking about WinUI, Windows App SDK, and the Windows AI APIs at @techbash 2025 this fall.
Register today with code SUMMER10 to save 10% on 3-day and 4-day tickets thru Labor Day. I'll see you there Nov 4-7: https://techbash.com/
I'll be speaking about WinUI, Windows App SDK, and the Windows AI APIs at @techbash.bsky.social 2025 this fall. Register today w/ code SUMMER10 to save 10% on 3-day & 4-day tickets thru Labor Day. I'll see you there Nov 4-7: techbash.com #dotnet #ai #windowsappsdk #windev #winui #csharp #windowsai
Day 23 of the Genetic Algorithms Bootcamp is live!
Today, we dive into NSGA-II.
A powerful way to handle multiple objectives in your C# GA without losing diversity.
Chris Woody Woodruff · Day 23: Introduction to Non-dominated Sorting Genetic Algorithm II (NSGA-II) in C# - Chris Woody WoodruffAs we extend our use of genetic algorithms (GAs) beyond single-objective problems, we enter the realm of multi-objective optimization, where trade-offs must be made between competing goals. The Non-dominated Sorting Genetic Algorithm II (NSGA-II) is one of the most widely used algorithms for solving such problems. Its design maintains a diverse population of high-quality solutions that form what is known as a Pareto front.