C# Advent

github.comGitHub - CSAdvent/csadvent.christmas: C# Advent - two new C# content entries every day from December 1st to 25thC# Advent - two new C# content entries every day from December 1st to 25th - CSAdvent/csadvent.christmas

Well, my ADHD got to me - the site is now in a new CSAdvent org! github.com/CSAdvent/csa...

C# Advent@csadvent.christmas

Open sourced the website - github.com/CodingWithCa... Might move it to its own org though, stay tuned.

github.comGitHub - CodingWithCalvin/CSAdvent: C# Advent - two new C# content entries every day from December 1st to 25thC# Advent - two new C# content entries every day from December 1st to 25th - CodingWithCalvin/CSAdvent

10h

Open sourced the website - github.com/CodingWithCa... Might move it to its own org though, stay tuned.

csadvent.christmasC# Advent 2026Sign-ups open November 1: two C# posts a day, December 1–25, written by the community.

C# Advent 2026 sign-ups open in 8 days, on November 1! Get ready to claim a day in December and write a post about C# for the community: two posts a day, December 1–25. https://csadvent.christmas/?via=bluesky&season=2026&in=8 #csharp #dotnet #csadvent

I need beta testers for the new site / workflow! Reply here (I do need your github username!)

Goal is to have the new site launched and registration opened on November 1 - exactly 11 days and counting. Get your ideas ready!

2026 may have started over 10 months ago, but it doesn't TRULY BEGIN until December! Get ready for another C# Advent - coming soon!

9 Jan

The website is back into "archive mode". Thank you to everyone who participated. See you in the fall!

26 Dec 2025

Thanks for a fantastic 2025 C# Advent! See you next year! #csadvent #csharp #dotnet

26 Dec 2025

We managed *48* posts this year (out of 50), for a 96% successful posting rate! @trailheadtech.bsky.social definitely led us in “most community posts per company” (is that a metric?…yeah it is now)

codingwithcalvin.netCreating Your Own MSBuild SDK - It's Easier Than You Think!An MSBuild SDK is basically a NuGet package that automatically imports .props and .targets files into your project. That's it. That's the whole thing.

25 Dec 2025

#CSAdvent post 2 for December 25, 2025! "String Interning" by @flash0ver.bsky.social github.com/Flash0ver/do... #dotnet #csharp

#CSAdvent post 1 for December 25, 2025! "Creating Your Own MSBuild SDK - It's Easier Than You Think!" by @codingwithcalvin.net codingwithcalvin.net/creating-you... #dotnet #csharp

c-sharpcorner.comMastering Deployment: An Easy Guide About Modern Docker Workflow for Depoying .NET 10 applicationMaster .NET 10 deployment with Docker! This guide simplifies containerization, ensuring consistent performance across all environments. Learn to build production-ready images.

24 Dec 2025

#CSAdvent post 2 for December 24, 2025! "Mastering Deployment: An Easy Guide About Modern Docker Workflow for Depoying .NET 10 application" by Santhosh Reddy Vootukuri (www.linkedin.com/in/naga-sant...) www.c-sharpcorner.com/article/mast... #dotnet #csharp

trailheadtechnology.comEvolving Intelligence: Evolutionary Algorithms and Neural Networks in C# - Trailhead Technology PartnersSimulate an evolution of creatures that evolve to survive in a world where only the corners of the map promote reproduction.

24 Dec 2025

#CSAdvent post 1 for December 24, 2025! "Evolving Intelligence: Evolutionary Algorithms and Neural Networks in C#" by Piotr Kolodziej (www.linkedin.com/in/piotr-kol...) trailheadtechnology.com/evolving-int... #dotnet #csharp

blog.nimblepros.comSanta's AI Chat App - Building a Festive Chat Application with RAG and .NET TemplatesIn this blog post, we explore how to build a Santa Chat application using AI and Retrieval-Augmented Generation (RAG) with the latest Microsoft.Extensions.AI project templates. Discover how to leverag...

23 Dec 2025

#CSAdvent post 2 for December 23, 2025! "Santa's AI Chat App" by @kylemcmaster.com blog.nimblepros.com/blogs/santas... #dotnet #csharp

dev.toThe .NET Cross-Platform Showdown: MAUI vs Uno vs Avalonia (And Why Avalonia Won)I've been writing .NET code since the first beta. Over three decades of professional development,...

23 Dec 2025

#CSAdvent post 1 for December 23, 2025! "The .NET Cross-Platform Showdown: MAUI/WinUI vs Uno vs Avalonia (And Why Avalonia Won)" by @biozal.bsky.social dev.to/biozal/the-n... #dotnet #csharp

irina.codesApi Versioning - A deep dive

22 Dec 2025

#CSAdvent post 2 for December 22, 2025! "Api Versioning - A deep dive" by @irina.codes irina.codes/api-versioni... #dotnet #csharp

timpurdum.devOver the River and Through the Woods

21 Dec 2025

#CSAdvent post 2 for December 21, 2025! "Over the River and Through the Woods" by @timpurdum.dev timpurdum.dev/post/2025/12... #dotnet #csharp

thecodepainter.co.ukFunctional Programming With C# - The Monads Were Here the Whole Time!!Not only does C# support Monads….but they were always here….

21 Dec 2025

#CSAdvent post 1 for December 21, 2025! "Functional Programming with C# -The Mondas Were Here the Whole Time!" by Simon Painter (www.linkedin.com/in/simon-pai...) www.thecodepainter.co.uk/blog/2025122... #dotnet #csharp

mzikmund.devBringing the DOOM to Uno PlatformLet's answer the most pressing question in software development: Can Uno Platform run DOOM?

20 Dec 2025

#CSAdvent post 2 for December 20, 2025! "Bringing the DOOM to Uno Platform" by Martin Zikmund (www.linkedin.com/in/mzikmund/) mzikmund.dev/blog/bringin... #dotnet #csharp @platform.uno

jeffrymorris.netGetting Started with Couchbase Enterprise Analytics SDKIntroduction Couchbase Enterprise Analytics is a new server from Couchbase that specializes in complex queries on data from multiple sources. It’s not an operational database, but a highly scalable…

20 Dec 2025

#CSAdvent post 1 for December 20, 2025! "Getting Started with Couchbase Enterprise Analytics SDK" by Jeff Morris (www.linkedin.com/in/jeffscott...) jeffrymorris.net/2025/12/20/g... #dotnet #csharp

thesoccerdev.comAgent orchestration with Microsoft Agent Framework. - The Soccer DevThis post is part of C# Advent 2025, for more event content click here. Up until recently, developers that were working on an agentic solution using the Microsoft stack had 2 options to orchestrate th...

19 Dec 2025

#CSAdvent post 2 for December 19, 2025! "Agent orchestration with Microsoft Agent Framework" by @thesoccerdev.bsky.social www.thesoccerdev.com/agent-orches... #dotnet #csharp

telerik.comBuilding an AI-Powered Form Assistant with BlazorCreate an AI assistant that guides users through completing RMA forms using natural language, JSON schema validation and real-time form binding in Blazor.

19 Dec 2025

#CSAdvent post 1 for December 19, 2025! "Building an AI-Powered Form Assistant with Blazor" by @edcharbeneau.bsky.social www.telerik.com/blogs/buildi... #dotnet #csharp

code4it.dev[C# Tip] How to create and access custom C# Attributes by using ReflectionIn C#, Attributes are a handy mechanism to attach metadata to your classes, methods, properties, etc. In this article, we will see how to create custom Attributes and access them at runtime using Refl...

18 Dec 2025

#CSAdvent post 2 for December 18, 2025! "How to create and access custom C# Attributes by using Reflection" by @bellonedavide.bsky.social www.code4it.dev/csharptips/c... #dotnet #csharp

techwatching.devFrom Spec to Santa: My C#‑Powered Christmas Story Generator ExperimentIn this article, I will explain how I built a website to generate Christmas Stories my almost 5-year-old daughter using C# and AI related technologies (GitHub Spec Kit, GitHub Copilot, Microsoft.Exten...

18 Dec 2025

#CSAdvent post 1 for December 18, 2025! "From Spec to Santa: My C#‑Powered Christmas Story Generator Experiment" by @techwatching.bsky.social techwatching.dev/posts/christ... #dotnet #csharp

C# Advent reposted

Alexandre Nédélec

@techwatching.bsky.social

18 Dec 2025

And here is my C# Advent post 👉 techwatching.dev/posts/christ... Or how I created a Christmas story generator using GitHub Spec Kit. @csadvent.christmas #aspire #dotnet #github

platform.unoBuilding a Fibonacci Sphere Visualizer with AI in the LoopPixel-Perfect Multi-Platform Applications with C# and WinUI for Windows, WebAssembly, iOS, macOS, Android and Linux

17 Dec 2025

#CSAdvent post 2 for December 17, 2025! "Building a Fibonacci Sphere Visualizer with AI in the Loop" by Matthew Mattei (www.linkedin.com/in/matteimatt/) platform.uno/blog/buildin... #dotnet #csharp #UnoPlatform @platform.uno

alexeyfv.xyzYour cache is not protected from cache stampedeLearn how ConcurrentDictionary and MemoryCache can cause multiple identical requests under load, and discover how HybridCache solves this problem.

17 Dec 2025

#CSAdvent post 1 for December 17, 2025! "Your cache is not protected from cache stampede" by Alexey Fedorov (www.linkedin.com/in/alexeyfv/) www.alexeyfv.xyz/en/post/2025... #dotnet #csharp

trailheadtechnology.comEF Core 10 Turns PostgreSQL into a Hybrid Relational-Document DB - Trailhead Technology PartnersDiscover how EF Core 10 and PostgreSQL JSONB make it easy to model flexible, schema-evolving data in a hybrid relational–document db.

16 Dec 2025

#CSAdvent post 2 for December 16, 2025! "EF Core 10 Turns PostgreSQL into a Hybrid Relational-Document DB" by Stefan Mitic (trailheadtechnology.com/author/stefa...) trailheadtechnology.com/ef-core-10-t... #dotnet #csharp

trailheadtechnology.comManufacturing Certainty: Load Testing with Azure Load Testing - Trailhead Technology PartnersLoad testing using Azure Load Test prevents significant production issues and bolsters the confidence of technology-driven businesses.

16 Dec 2025

#CSAdvent post 1 for December 16, 2025! "Manufacturing Certainty: Load Testing with Azure Load Testing" by Andy Wilson (www.linkedin.com/in/andy-wils...) trailheadtechnology.com/manufacturin... #dotnet #csharp

15 Dec 2025

#CSAdvent post 2 for December 15, 2025! "TUnit: The New Sheriff in Town for .NET Testing" by Vladan Petrovic (www.linkedin.com/in/vladan-pe...) trailheadtechnology.com/tunit-the-ne... #dotnet #csharp

linkedin.comlinkedin.com

trailheadtechnology.comSentiment Analysis in C#: Azure AI Language or LLMs - Trailhead Technology PartnersExplore the shift from traditional sentiment analysis to LLMs in C#, using Azure AI and OpenAI for improved accuracy and nuanced insights.

15 Dec 2025

#CSAdvent post 1 for December 15, 2025! "Sentiment Analysis in C#: Azure AI Language or LLMs" by @rodrigojuarez.com trailheadtechnology.com/sentiment-an... #dotnet #csharp

conradakunga.comDynamically Changing Decimal & Thousand Separators At RuntimeThis article is part of the 2025 C# Advent Calendar.

14 Dec 2025

#CSAdvent post 2 for December 14, 2025! "Dynamically Changing Decimal & Thousand Separators At Runtime" by Conrad Akunga (www.linkedin.com/in/conrad-ak...) www.conradakunga.com/blog/dynamic... #dotnet #csharp

accessibleai.dev16 Tips for Writing AI-Ready C# Code16 practical tips for optimizing your C# codebase to work seamlessly with AI coding assistants like Copilot, Cursor, and Claude Code, covering foundational practices, structural patterns, and C# langu...

14 Dec 2025

#CSAdvent post 1 for December 14, 2025! "16 Tips for Writing AI-Ready C# Code" by Matt Eland (www.linkedin.com/in/matteland/) accessibleai.dev/post/writing... #dotnet #csharp

barretblake.devC# Advent 2025 - Extension MembersYou’ve been able to create extension methods for C# types for a long time. With C# 14, extensions get a whole new look and feel. And, some new functionality as well.

13 Dec 2025

#CSAdvent post 2 for December 13, 2025! "C# Advent 2025 - Extension Members by @barretblake.dev barretblake.dev/posts/develo... #dotnet #csharp

trailheadtechnology.comSending Holiday Cheer in .NET with Scriban and MailKit - Trailhead Technology PartnersSee how you can use the Scriban scripting language and engine to template emails and send them with MailKit in .NET.

13 Dec 2025

#CSAdvent post 1 for December 13, 2025! "Sending Holiday Cheer in .NET with Scriban and MailKit" by John Waters (www.linkedin.com/in/john-wate...) trailheadtechnology.com/sending-holi... #dotnet #csharp

platform.unoModern .NET with Uno Platform & AIA look at modern .NET development with Uno Platform & AI

12 Dec 2025

#CSAdvent post 1 for December 12, 2025! "Modern .NET with Uno Platform & AI" by @samidip.bsky.social platform.uno/blog/modern-... #dotnet #csharp

chris-ayers.comGetting Started with the Aspire CLI - A Complete GuideThe Aspire CLI is a cross-platform tool for creating, managing, and running polyglot Aspire projects. This post covers the core commands you’ll use day-to-day.

12 Dec 2025

#CSAdvent post 2 for December 12, 2025! "Getting Started with the Aspire CLI" by @chris-ayers.com chris-ayers.com/2025/12/11/a... #dotnet #csharp

poornimanayar.co.ukSending sweet treats with Google Pub/Sub | Poornima NayarA simple guide to Google Pub/Sub messaging with .NET —publishers, subscribers and retries

11 Dec 2025

#CSAdvent post 2 for December 11, 2025! "Sending sweet treats with Google Pub/Sub" by @poornimanayar.bsky.social poornimanayar.co.uk/blog/sending... #dotnet #csharp

youtube.com2 code a Roslyn Source Generator - C# Advent Calendar 2025YouTube video by FlashOWare

11 Dec 2025

#CSAdvent post 1 for December 11, 2025! "2 code a Roslyn Source Generator" by @flashoware.bsky.social (live stream starts at 18:00 UTC, December 11th) www.youtube.com/watch?v=sB37... #dotnet #csharp

c-sharpcorner.comCreate your MCP Server using Azure FunctionsWith the growing number of frameworks and tools for creating MCP servers, especially within the .NET technology stack, Azure Functions emerges as a valuable new option. As is customary with Azure Func...

10 Dec 2025

#CSAdvent post 2 for December 10, 2025! "Create your MCP Server using Azure Functions" by @jorgelevy.net www.c-sharpcorner.com/article/crea... #dotnet #csharp

dev.toMeet Microsoft Agent Framework — Your .NET Agent ToolkitThis article is part of C# Advent Calendar 2025 initiative by Matthew D. Groves. You'll find other...

10 Dec 2025

#CSAdvent post 1 for December 10, 2025! "Meet Microsoft Agent Framework — Your .NET Agent Toolkit" by Luis Beltran (www.linkedin.com/in/luisanton...) dev.to/icebeam7/mee... #dotnet #csharp

consultwithgriff.comWhat's New in C# 14: Extension MembersA hands-on look at using extension members to improve expressiveness and eliminate boilerplate in C#.

9 Dec 2025

#CSAdvent post 2 for December 9, 2025! "What's New in C# 14: Extension Members" by @consultwithgriff.com consultwithgriff.com/csharp-14-ex... #dotnet #csharp

trailheadtechnology.comReusing Your Existing .NET REST APIs for AI with MCP - Trailhead Technology PartnersLearn to integrate MCP into your existing .NET REST APIs to enhance the code you already have with AI capabilities.

9 Dec 2025

#CSAdvent post 1 for December 9, 2025! "Reusing Your Existing .NET REST APIs for AI with MCP" by @jtowermi.bsky.social from @trailheadtech.bsky.social trailheadtechnology.com/reusing-your... #dotnet #csharp

blog.nyveldt.comMake Copilot Work Your Way: Building MCP Servers in C# | Al NyveldtBuild your first MCP server with C# and .NET. This practical guide shows how to connect GitHub Copilot to your Obsidian notes—and teaches you the pattern to solve your own problems.

#CSAdvent post 2 for December 8, 2025! "Make Copilot Work Your Way: Building MCP Servers in C#" by @al.nyveldt.com blog.nyveldt.com/post/buildin... #dotnet #csharp

samestuffdifferentday.net2025 C# Advent - A Christmas Trivia GameMy entry for the 2025 C# Advent - A Christmas Trivia game using C# and Spectre.Console

#CSAdvent post 1 for December 8, 2025! "A Christmas Trivia game using C# and Spectre.Console" by @mjeaton.net samestuffdifferentday.net/2025/12/08/c... #dotnet #csharp

linkedin.comDave Brock - CoVantage Credit Union | LinkedInI love to learn, grow, and make an impact. My expertise lies in distributed systems… · Experience: CoVantage Credit Union · Location: Oregon · 500+ connections on LinkedIn. View Dave Brock’s profile o...

#CSAdvent post 1 for December 7, 2025! "Parsing Santa's workshop with strongly typed data (without the coal)" by Dave Brock (www.linkedin.com/in/daveabrock) www.daveabrock.com/2025/12/07/p... #dotnet #csharp