Performance, DI, and C# fundamentals
This issue mixes Dapper pooling, SOLID, DI lifetimes, memory leaks, async slowdowns, security, and LINQ guidance for everyday .NET work.
Jasen's top three picks
- 1 Mastering Connection Pooling with Dapper in ASP.NET Core Web API
c-sharpcorner.com
Good practical Dapper advice for keeping connection handling sane under load.
- 2 Value vs Reference Types in C# — Explained with Real Examples and Analogies
medium.com
A clear refresher on value vs. reference types, which still trips people up in reviews.
- 3 Millions Code in .NET — Why Developers Still Hide It in 2025
medium.com
The memory leak post-mortem is the kind of real-world debugging story worth studying.
Editor's note
I pulled together a very mixed lineup this time: performance, architecture, security, and a few core language refreshers. The memory leak post-mortem and the “one await” slowdown stood out to me because they’re the kind of bugs that hide in plain sight. I also liked the zero-trust ASP.NET Core 10 piece for folks thinking ahead about app hardening.
Today's articles
Mastering Connection Pooling with Dapper in ASP.NET Core Web API
c-sharpcorner.com
https://www.c-sharpcorner.com/article/mastering-connection-pooling-with-dapper-in-asp-net-core-web-api/
Topics: ASP.NET Core Dapper Performance
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Value vs Reference Types in C# — Explained with Real Examples and Analogies
medium.com
https://medium.com/@fahimshahariar.fs/value-vs-reference-types-in-c-explained-with-real-examples-and-analogies-3f4d6a5f2e37
Topics: C#
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Millions Code in .NET — Why Developers Still Hide It in 2025
medium.com
https://medium.com/@jenilsojitra/millions-code-in-net-why-developers-still-hide-it-in-2025-a96afa9d0e48
Topics: .NET Core
Read articleUnderstanding SOLID Principles with simple Console App in .NET
c-sharpcorner.com
https://www.c-sharpcorner.com/article/understanding-solid-principles-with-simple-console-app-in-net/
Topics: C# Solid Principles
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Why a try-catch Block Crashed Our Entire .NET App
medium.com
https://medium.com/@joshiabhi777/why-a-try-catch-block-crashed-our-entire-net-app-ac52a3dfd82e
Topics: .NET Core Performance
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The .NET Memory Leak That Took 6 Weeks to Find: A Post-Mortem (with Full Code Examples)
medium.com
https://medium.com/c-sharp-programming/the-net-memory-leak-that-took-6-weeks-to-find-a-post-mortem-with-full-code-examples-cda9b30bb627
Topics: .NET Core Performance
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Why .NET Still Makes Business Sense in 2025?
medium.com
https://medium.com/@nevintom/why-net-still-makes-business-sense-in-2025-479515a99a59
Topics: .NET Core
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Zero-Trust ASP.NET Core 10 Security
medium.com
https://medium.com/@Adem_Korkmaz/zero-trust-asp-net-core-10-security-f16c70c6fec9
Topics: ASP.NET Core .NET 10 Security
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The 3 Unethical Unsafe Hacks That Make .NET Run Like Native C++
medium.com
https://medium.com/c-sharp-programming/the-3-unethical-unsafe-hacks-that-make-net-run-like-native-c-fbea77433380
Topics: Native AOT Performance
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Stop Misusing DI in .NET — The 2025 Survival Guide for Clean Architecture
medium.com
https://medium.com/@mohsho10/stop-misusing-di-in-net-the-2025-survival-guide-for-clean-architecture-dc8f9d7cd16d
Topics: Design Patterns
Read articleService Lifetimes in ASP.NET Core: Transient vs Scoped vs Singleton
c-sharpcorner.com
https://www.c-sharpcorner.com/article/service-lifetimes-in-asp-net-co-transient-vs-scoped-vs-singleton/
Read articleMastering LINQ in C#
c-sharpcorner.com
https://www.c-sharpcorner.com/article/mastering-linq-in-c-sharp/
Read article
The Real Reason .NET Doesn’t Dominate AI? Its Community Gave Up Too Soon.
medium.com
https://medium.com/@yaseer.arafat/the-real-reason-net-doesnt-dominate-ai-its-community-gave-up-too-soon-6c4d8c0786c0
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I Removed 7 if Statements from My C# Code — Without Changing Logic
medium.com
https://medium.com/@tolgayildiz91/i-removed-7-if-statements-from-my-c-code-without-changing-logic-2cdedbb149e4
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Stop Repeating Yourself: How One Generic Controller Can Handle All Your Entities in ASP.NET Core
satheeshkaliappan.medium.com
https://satheeshkaliappan.medium.com/stop-repeating-yourself-how-one-generic-controller-can-handle-all-your-entities-in-asp-net-core-70c0d156514a
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.NET MAUI vs Flutter vs React Native — Who Wins in 2025?
medium.com
https://medium.com/write-a-catalyst/net-maui-vs-flutter-vs-react-native-who-wins-in-2025-650dae6ed811
Read article
The One await That Slowed Our Entire .NET App
medium.com
https://medium.com/c-sharp-programming/the-one-await-that-slowed-our-entire-net-app-1f60497bdc8b
Read article