EF Core, Aspire, and VS 2026
A varied .NET roundup covering EF Core modeling, Aspire tracing, Visual Studio 2026, security, performance, testing, and AI-adjacent topics.
Jasen's top three picks
- 1 Entity Framework Core 9 Fundamentals: Part 6 - Mastering Data Modeling & Relationships Guide
c-sharpcorner.com
A solid EF Core walk-through, plus a second piece on change tracking bugs that can save you from nasty production surprises.
- 2 Model Context Protocol in .NET
medium.com
MCP in .NET and context engineering bring the AI side into focus without pretending the issue has a single theme.
- 3 Announcing the .NET Security Group - .NET Blog
devblogs.microsoft.com
The new .NET Security Group announcement is the kind of operational update serious teams should track closely.
Editor's note
I curated a deliberately mixed issue today, with everything from EF Core modeling and change-tracking pitfalls to Aspire observability and Visual Studio 2026 Insiders. The .NET Security Group announcement is worth a close read, and the memory-leak troubleshooting piece is a practical reminder that production diagnostics still matter.
Today's articles
Entity Framework Core 9 Fundamentals: Part 6 - Mastering Data Modeling & Relationships Guide
c-sharpcorner.com
Master data modeling and relationships in Entity Framework Core 9! This guide covers data annotations, Fluent API, one-to-many, one-to-one, and many-to-many relationships. Learn to control your databa...
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Model Context Protocol in .NET
medium.com
Let’s have a look that the MCP is and how we can implement it in .NET. Continue reading on Data Science Collective »
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Announcing the .NET Security Group - .NET Blog
devblogs.microsoft.com
Learn how to join the .NET Security Group for early access to CVE information and help deliver security patches to your .NET distribution simultaneously with Microsoft.
Read articleAutomating Chrome Browser with Selenium in C#
c-sharpcorner.com
Learn how to automate the Chrome browser using Selenium WebDriver with C# for web testing, scraping, and task automation. This tutorial provides a step-by-step guide, from setting up your C# project i...
Topics: C# Unit Testing Web API
Read articleUnlocking Runtime Intelligence: A Formal Exploration of Reflection in .NET
c-sharpcorner.com
Unlock the power of runtime intelligence with .NET Reflection! This article explores how to inspect and manipulate .NET code at runtime, covering key components like Assembly and Type inspection, dyna...
Topics: C# .NET Core Performance
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Memory Leak Hunting in .NET Core: Lessons from Production Troubleshooting
medium.com
This article explores the process of uncovering a mysterious memory leak in a .NET Web API project. Continue reading on MoneyPay »
Topics: .NET Core Performance Web API
Read articleHandling ASP.NET Session Issues Across Multiple Browser Tabs: Ensuring Correct User Data in Popups
c-sharpcorner.com
Fix ASP.NET session issues across browser tabs! Ensure popups display correct user data by fetching session data dynamically with AJAX. Avoid data mismatches.
Topics: ASP.NET Core Authentication Web API
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The 7 Sneaky EF Core Change Tracking Bugs That Silently Destroyed My Data (Until I Cracked the Fix)
blog.stackademic.com
Discover how invisible tracking issues can overwrite your entities, break relationships, and cause ‘random’ bugs — and learn the exact… Continue reading on Stackademic »
Topics: C# EF Core Performance
Read articleRole of Memory in Context Engineering
c-sharpcorner.com
Explore how memory shapes Context Engineering in AI systems, helping models like GPT-5 and Gemini retain information, maintain continuity, and deliver intelligent, personalized, and context-aware resp...
Topics: ML.NET OpenAI Semantic Kernel
Read articleSOLID Principles Cheat Sheet 🚀
c-sharpcorner.com
Master the SOLID principles of object-oriented design with this cheat sheet! Learn Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion principles. ...
Topics: C# Design Patterns Solid Principles
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C# 14’s New Performance-Enhancing Feature: Compound Assignment Operators
gunesramazan.medium.com
C# keeps giving developers a little more flexibility with every release. With .NET 10, C# 14 introduces a feature that looks small at…
Topics: C# .NET 10 Performance
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Building a Real-Time Day Planner in WPF: From Static Design to Dynamic Data
medium.com
Desktop applications don’t have to be sluggish or look dated. Using WPF (Windows Presentation Foundation) and C#, we can build highly…
Topics: C# .NET Framework WPF
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Mastering the C# Dispose Pattern
blog.ivankahl.com
Mastering C# IDisposable is crucial for reliable resource management. Learn how to deterministically clean up unmanaged resources in C#.
Topics: C# .NET Core Performance
Read article🌀 Saga Design Pattern - Orchestration Saga – Cheat Sheet
c-sharpcorner.com
Master the Orchestration Saga pattern for microservices! This cheat sheet explains how to maintain data consistency across distributed systems without 2PC. Learn to break down long transactions into s...
Topics: CQRS Design Patterns
Read articleBoost Developer Productivity with Copilot Profiler in Visual Studio
c-sharpcorner.com
Discover how the Copilot Profiler Agent in Visual Studio transforms .NET debugging and performance tuning with AI-powered insights, real-time suggestions, and benchmark validation—making optimization ...
Topics: GitHub Copilot Performance Visual Studio
Read articleUsing Prompt Engineers to Help CROs Fix Hidden Revenue Leaks, Keep Customers, and Drive Expansion
c-sharpcorner.com
Uncover hidden revenue leaks with prompt engineering! This article details how to use AI, guided by prompt engineers, to fix stalled pipelines, margin erosion, missed expansion, preventable churn, and...
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.NET Core Concepts (CPU Isolation)
medium.com
.NET Concepts
Topics: .NET Core Performance
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When LINQ becomes a mess | Clean EF Core queries
medium.com
Sometimes it’s really hard to follow the logic in LINQ — especially if the query is a giant one. And if you’re wondering how to make it…
Topics: C# EF Core Performance
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.NET Aspire: Distributed Tracing and Observability for Robust Microservices Monitoring
medium.com
In this article, we’ll dive deep into .NET Aspire’s distributed tracing and observability features, with a focus on metrics and trace…
Topics: .NET Aspire Kubernetes OpenTelemetry
Read articleFiltering Rows in a DataTable using DataView in C#
c-sharpcorner.com
Learn how to efficiently filter rows in a C# DataTable using DataView. This method allows dynamic data filtering without altering the original DataTable. Discover how to create DataViews, apply RowFil...
Topics: C# .NET Core Performance
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⚙️ That One Azure Setting That Doubled Our Reliability
aws.plainenglish.io
We didn’t rewrite our code. We didn’t scale out. We just added one setting — and our cloud app stopped failing randomly. Continue reading on AWS in Plain English »
Topics: Azure OpenTelemetry Performance
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Write Code Like a Pro: 15 LINQ Tricks That Eliminate Complex Loops Forever
medium.com
Discover powerful LINQ patterns used by senior developers to write elegant, high-performance C# code that recruiters and teammates love.
Topics: C# Performance
Read articleWhat’s New in Visual Studio 2026 Insiders: Faster, Smarter, and More Modern
c-sharpcorner.com
Visual Studio 2026 Insiders delivers blazing-fast performance, AI-powered coding with GitHub Copilot, and a modern UI. Boost your .NET & C++ development!
Topics: GitHub Copilot Performance Visual Studio
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️ How to Write Architecture Tests for Clean Architecture with .NET 9
medium.com
Maintaining a Clean Architecture isn’t just about writing layered code; it’s about ensuring that those layers stay clean, that…
Topics: Clean Architecture .NET 9 Unit Testing
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