Today’s articles include topics on C# 14 Data Science, Azure Functions, SOLID Design, and .NET Logging

Stop Using FirstOrDefault for Claims in .NET

https://itnext.io/stop-using-firstordefault-for-claims-in-net-71add18db5a2

Say goodbye to magic strings and hello to testable, discoverable identity access in ASP.NET. Continue reading on ITNEXT »

Don’t Let Blob Sync Break Your .NET App — Try This Instead

https://itnext.io/dont-let-blob-sync-break-your-net-app-try-this-instead-79d6fd5ef6f9

Replace FTP and network drives with Azure Blob Storage in your .NET projects. Learn how to implement secure, scalable, and event-driven… Continue reading on ITNEXT »

Build AI-Powered Web APIs in .NET with Copilot and VS Code

https://medium.com/@hasanmcse/build-ai-powered-web-apis-in-net-with-copilot-and-vs-code-bfef6adfd3d3

Build AI-powered web APIs using .NET, GitHub Copilot, and VS Code. This guide helps software engineers streamline development with real…

C# Data Science With C# 14 Features (Comprehensive Guide)

https://www.c-sharpcorner.com/article/c-sharp-data-science-with-c-sharp-14-features-comprehensive-guide/

Is C# ready for data science in 2025? With features from C# 14 and the power of ML.NET and Microsoft.Data.Analysis, the answer is a confident yes. This hands-on guide walks you through how to build clustering models, visualize data with Plotly.NET, and process large datasets using .NET Interactive notebooks. Learn how primary constructors, pattern matching, and lambda improvements make C# a robust alternative to Python for modern data workflows.

StringComparison.InvariantCulture is not always invariant

https://www.meziantou.net/stringcomparison-invariantculture-is-not-always-invariant.htm

StringComparison.InvariantCulture always guarantees consistent behavior? Think again. This article by Gérald Barré breaks down why using InvariantCulture for string comparisons in .NET can lead to unexpected results across platforms due to underlying ICU/NLS differences. Learn why Ordinal or OrdinalIgnoreCase should be your go-to for string equality and how App-local ICU and Globalization Invariant Mode can offer consistency. A must-read for developers writing culture-aware .NET applications.

The ‘using’ Statement in C# Just Got Smarter — Are You Using It?

https://medium.com/dot-net-sql-learning/the-using-statement-in-c-just-got-smarter-are-you-using-it-1afb0c6a8879

As C# developers, we often use the using statement, but did you know that the using statement has become more powerful and smarter since… Continue reading on Dot Net, API & SQL Learning »

Why does Single() throw an exception in LINQ?

https://medium.com/@info.codenargs/why-does-single-throw-an-exception-in-linq-f0c5787db107

Ever wondered why Single() in LINQ throws InvalidOperationException? This quick read breaks it down: Single() expects exactly one match—not zero, not two. Learn when to use Single(), how it differs from SingleOrDefault() and FirstOrDefault(), and how to avoid common runtime errors in C# LINQ queries. A must-read for developers refining their .NET data handling practices.

Hackers Love This .NET Mistake — Don’t Fall for It!

https://medium.com/write-a-catalyst/hackers-love-this-net-mistake-dont-fall-for-it-31110144fda5

As .NET developers, we often make mistakes that open the door to hackers. You may be building a great feature, but one small mistake… Continue reading on Write A Catalyst »

How do I track a database in source control?

C# 14 – Exploring extension members

https://devblogs.microsoft.com/dotnet/csharp-exploring-extension-members/
https://devblogs.microsoft.com/dotnet/csharp-exploring-extension-members/

C# 14 introduces extension members, a game-changing enhancement that expands on the traditional this-parameter extension methods. This article by Kathleen Dollard explores the new extension block syntax, how to create extension properties and static methods, and how the compiler lowers these into familiar C# code. If you’ve ever wanted more organized, readable ways to extend types—especially when you don’t control the source—this guide is packed with practical examples, disambiguation strategies, and generics support that’ll shape the future of C# extensibility.

When Old .NET Habits Save New SQLite Code

https://medium.com/@rbrooks33/when-old-net-habits-save-new-sqlite-code-33d952d62a4a

SQLite query working in DB Browser but crashing in your .NET Core app with a DataTable.Load() constraint error? This article reveals a quirky behavior in DataSet.EnforceConstraints that still bites in modern C# apps. Discover how wrapping your DataTable in a DataSet and toggling constraint enforcement can solve mysterious SELECT errors — and why old-school ADO.NET habits sometimes save the day in today’s lightweight tools and admin UIs.

C# 10 File-Scoped Namespace: New Generation Namespace Usage

https://medium.com/womenintechnology/c-10-file-scoped-namespace-new-generation-namespace-usage-0eaa96132079

Hello there, C# is constantly improving itself with each new version, which creates a more productive working environment for… Continue reading on Women in Technology »

Boost Your .NET Projects: Enhancing .NET Logging with LoggingHelper in Spargine

Boost Your .NET Projects: Enhancing .NET Logging with LoggingHelper in Spargine

Looking to improve .NET logging without reinventing the wheel? This article introduces LoggingHelper from the open-source Spargine toolkit—offering structured logging, system insights, and robust exception handling in .NET 8 and .NET 9. From logging AppDomain events to capturing first-chance exceptions, LoggingHelper simplifies diagnostics with production-ready tools built for performance and clarity. Ideal for developers using ILogger, System.Data, or Microsoft.Data.Sqlite, this is logging made smarter.

Build & Deploy Azure Function Using C# and Integration with Azure SQL

https://www.c-sharpcorner.com/article/build-deploy-azure-function-using-c-sharp-and-integration-with-azure-sql/

Want to build a serverless API with C# and connect it to Azure SQL? This guide shows how to create and deploy an HTTP-triggered Azure Function that performs full CRUD operations on an Azure SQL Database, using Visual Studio and Azure Portal. You’ll learn to publish your function to the cloud, configure connection strings securely, and test your deployment via Postman—perfect for building scalable, low-cost, and event-driven .NET apps on Azure.

SOLID Principles in C# — In-Depth Guide with Real World Examples

https://medium.com/@hpultimatemedia/solid-principles-in-c-in-depth-guide-with-real-world-examples-7017f3dc7a29

Struggling to write clean, scalable C# code? This deep-dive into SOLID principles in C# will show you how to master key design patterns like Single Responsibility, Open/Closed, and Dependency Inversion using real-world examples. Whether you’re building enterprise software or refining your codebase, understanding these SOLID principles can boost testability, maintainability, and long-term performance across your .NET projects.

10 Costly Mistakes Developers Make When Using GC.Collect() in C#

https://medium.com/@ashokreddy343/10-costly-mistakes-developers-make-when-using-gc-collect-in-c-5a746c79ab06

Introduction

What are you most excited about in .NET right now?

YASA – Yet another S.O.L.I.D. article

https://medium.com/@markjackmilian/yasa-yet-another-s-o-l-i-d-article-e937f73c2dc9

Want to write scalable, testable, and maintainable .NET code? This guide to SOLID principles in C# breaks down each core concept — including Single Responsibility, Liskov Substitution, and Dependency Inversion — with real-world .NET examples. Whether you’re building enterprise systems or refining legacy code, mastering these object-oriented design principles can transform your codebase into a clean, modular, and future-proof architecture.

Async/Await in C#: How to Avoid the Hidden Performance Pitfalls

https://medium.com/@mohsho10/async-await-in-c-how-to-avoid-the-hidden-performance-pitfalls-4641f5eb4c12?source=rss——csharp-5

Most C# developers use async/await because it’s easy. It looks like synchronous code, feels safe, and works well — until you hit…