Today I learned how to implement a custom Enumerable.DistinctBy extension method that returns distinct elements from a sequence according to a specified key selector function. .NET 6 and its successors have the method built in within LINQ, but I needed it in a .NET Standard 2.0 class library, so I was out of luck. My implementation is simple, not different from others I found online, and should also work fine with old ....
Fattura Elettronica for .NET v3.4.10 was released on NuGet today. The Fattura Elettronica project allows for the validation and de/serialization of electronic invoices following the Italian Revenue Agency standards. This release adds a missing validation point. See the changelog for details (Italian).
I’ve just received news that I’ve been awarded the Microsoft Most Valuable Professional (MVP) Award in the Software Development category. It is an honor and a pleasure to be renewed for the eighth time. Being a Microsoft MVP means a lot to me; I remember how intimidated I felt when I met MVPs at various events and how totally out of reach the title seemed for someone like me. Besides my everyday work, I kept doing the things I loved:...
Another day another Homebrew incompatibility emerges, this time with docfx, the technical documentation building tool of reference in .NET space. I’ve been using docfx for years to build the FatturaElettronica.NET website, and it’s always been working without a glitch. Lately, however, my builds have been failing with strange errors I was too lazy to diagnose until today when I decided to grasp the nettle and sort the whole thing out....
Today I learned that .NET 8 Preview could play better with Homebrew (or vice-versa). I’m working on a C# 12 presentation for our local developer meetup, and for that, I wanted .NET 8 Preview to run side by side with version 7 on my Mac. As version 7 was initially installed with Homebrew, I also wanted to install version 8 Preview with Homebrew, but that recipe was unavailable. Not perfectly happy with that, I fell back to the stand-alone installer, expecting problems....
The latest .NET 8 Preview is out, and I love that they’re finally changing how MSBuild logs are printed to the terminal. The new Terminal Logger ditches the infamous “wall of text” that is a nightmare to parse in favor of a cleaner, leaner, and more organized output. Once enabled, the new logger shows you the restore phase, followed by the build phase. During each phase, the currently-building projects are at the bottom of the terminal, and each building project tells you both the MSBuild Target currently being built, as well as the amount of time spent on that target....
Fattura Elettronica for .NET v3.4.8 was released on NuGet today. The Fattura Elettronica project allows for the validation and de/serialization of electronic invoices following the Italian Revenue Agency standards. As with the previous one, this release also addresses a small undocumented behavior in validating the invoice. See the relevant ticket for the details.
Fattura Elettronica for .NET v3.4.7 was released on NuGet today. The Fattura Elettronica project allows for the validation and de/serialization of electronic invoices adhering to the canon defined by the Italian Revenue Agency. This release refines how the one-cent tolerance is accounted for in validation checks of types 00421 and 00423. As is often the case, there are subtle differences between the theoretical implementation defined in the official specs and the actual validation implemented by the same Agency that released said specs....
Steve Sanderson is experimenting again, and when Steve plays with his toys, I pay attention. In a new video on his YouTube channel, Steve introduces an experimental new .NET package that allows the creation of isolated instances of the .NET runtime that will safely run code in a sandbox.
In a C# library I’ve been working on, I wanted to use C# 9.0’s init keyword. Quoting the documentation: The init keyword defines an accessor method in a property or indexer. An init-only setter assigns a value to the property or the indexer element only during object construction. This enforces immutability so that once the object is initialized, it can’t be changed again. Consider the following class: public class Person { public string FirstName { get; init; } } You can initialize it like this:...