Recap: One Year Using C# 9 with .NET Framework
You can use C# 9 language features with .NET Framework or netstandard. After more than a year, I can recommend it.
Be more productive with different keystrokes: Explicit interface implementation
Implement interfaces explicitly to convey intent, get more help from the compiler and maybe type less.
Be more productive with more keystrokes: seal all the things
Declare your classes (and records!) sealed by default.
Be more productive with fewer keystrokes: Access modifiers
Only declare access modifiers if you do not want the default. This makes the code much more readable and succinct.
How to exclude test categories by default for ‘dotnet test’ CLI
Exclude test categories from "dotnet test" by default via a TestCaseFilter in your .runsettings file.
Creating POCOs from XSD with a Source Generator
How to write a source generator for generating POCOs from XSD files.
Record type gotcha with FluentAssertions 5
Use version 6+ of FluentAssertions when asserting equality of record types with collections in them.
Returning Auto-Unregistering Objects From An Instance-Counting Factory
Automatically unregister a disposed instance at the factory by using a wrapper around the instance that executes a factory callback on being disposed.
Performance Optimization Guided By Benchmarks
This post is just a summary of a few things I learned about performance optimization of CPU-bound / memory-bound processes in C#/.NET.
I was able to accelerate two different low-level image processing algorithms by a factor of 10 while learning a lot and enjoying the process.
Gotcha with xsd.exe and XmlSerializer
TL;DR: Always use the /order option when using xsd.exe. If you have ever generated C# classes from an XML schema, chances are you used xsd.exe for that.You probably also expected…