🗂️ Custom Session Store for Complex Objects in ASP.NET Core ASP.NET Core’s default session fails with complex objects. This post shows how to store them safely in memory.

🗂️ New: Modernizing .NET – Part 15
JSON fails with circular objects. Protobuf-net can’t fix recursive graphs.
Here’s a custom ASP.NET Core Session Store that can.

Read → medium.com/@michael.kop...
#DotNet #DotNetCore #DotNet8 #DotNet9 #DotNet10 #ASPNet #ASPNetCore #CSharp #Middleware #SessionState

🧩 Modernizing .NET — Part 14: Migrating from WebHost to WebApplication in ASP.NET Core WebHost was common in early ASP.NET Core apps. This post shows how to migrate to the modern WebApplication model.

🧩 New: Modernizing .NET – Part 14
WebHost still works, but WebApplication is better.
Here’s how to migrate your ASP.NET Core app to the modern hosting model.

Read → medium.com/@michael.kop...
#DotNet #DotNetCore #DotNet8 #DotNet9 #DotNet10 #ASPNet #ASPNetCore #CSharp #Middleware

🪢Modernizing .NET — Part 12: Managing Dependency Injection in Background Threads with SharedContext Legacy background threads don’t support DI — this post introduces the SharedContext pattern to bridge the gap

🧵 New: Modernizing .NET – Part 12
Use HttpClientFactory in legacy background threads with the SharedContext pattern.
Thread‑safe, DI‑friendly, minimal refactoring.

📖 Read → medium.com/@michael.kop...
#DotNet #DotNetCore #DotNet8 #DotNet9 #DotNet10 #ASPNet #ASPNetCore #CSharp #DependencyInjection

📡 Modernizing .NET — Part 11 Migrating WebClient and RestSharp to HttpClientFactory This post gives a production‑ready migration path for replacing WebClient and RestSharp with HttpClient backed by IHttpClientFactory. It…

📡 New post: Modernizing .NET – Part 11
Migrate from WebClient and RestSharp to HttpClientFactory.
Full code for performance boost.
Read → medium.com/@michael.kop...
#DotNet #DotNetCore #DotNet8 #DotNet9 #DotNet10 #ASPNet #ASPNetCore #CSharp #Linux #RestShart #WebClient #DepedencyInjection

Just a moment...

Boost your EF Core performance! 🚀 Discover 7 game-changing tweaks that can make your queries 233% faster in .NET 9. Dive into clean examples and optimize your code for efficiency. #EFCore #dotnet9

📊 Modernizing .NET — Part 10: Replacing OleDB Excel Reading with ExcelDataReader Legacy .NET apps rely on OleDB to read Excel files — but it doesn’t work in .NET Core. This guide shows how to migrate to ExcelDataReader

📊 New post: Modernizing .NET – Part 10
Replace OleDB with ExcelDataReader in .NET Core.
Setup, formatting, exporting, performance tips — all covered.
Read → medium.com/@michael.kop...
#DotNet #DotNetCore #DotNet8 #DotNet9 #DotNet10 #ASPNet #ASPNetCore #Excel #OLEDB

Just a moment...

#DOTNET9 offers unmatched performance & security, making it a solid choice for modern engineering careers. See why transitioning from #PHP to .NET 9 could elevate your projects. 📈 Stay ahead in tech evolution!

Call for Presentations is open.

VSLive!, part of Live! 360 Tech Con Orlando, is seeking practical, developer-focused sessions on #VisualStudio and #dotNET9 to #ASPdotNETCore, #Azure #Copilot & more.

Submit proposal by Mar. 23, 2026, 11:59 PM EST.

Submit here: sessionize.com/live-360-tec...

🔐 Modernizing .NET — Part 9: Migrating SAML SSO to ITfoxtec Migrating legacy SAML authentication to ITfoxtec in .NET Core. Covers configuration, response handling, and real-world deployment tips.

🦊 New post: Modernizing .NET – Part 9
SAML SSO migration to ITfoxtec in .NET Core.
Config, response handling, logging — all covered.
Read it → medium.com/@michael.kop...
#DotNet #SAML #SSO #ITfoxtec #CSharp #Identity #ASPNet #ASPNetCore #Linux #DotNetCore #DotNet8 #DotNet9 #DotNet10

🔄 Modernizing .NET — Part 7: From Web References to Service References How to migrate legacy SOAP clients from Web References in .NET Framework to Service References in .NET Core using dotnet-svcutil.

🧼 New post: Modernizing .NET – Part 7
.NET Core dropped Web References—here’s how to rebuild SOAP clients with dotnet-svcutil.
🔗 medium.com/@michael.kop...
#DotNet #DotNetCore #DotNet8 #DotNet9 #DotNet10 #ASPNet #ASPNetCore #SOAP #WebServices #CSharp #SoftwareEngineering #LegacyCode

Just a moment...

Learn how to master EF Core on .NET 9, from building models to applying migrations. A must-read for devs looking to enhance their data handling skills. #EFCore #DotNet9

How to Upgrade .NET MAUI & Blazor Hybrid Apps to .NET 9 in Minutes - Ottorino Bruni Learn how to upgrade your .NET MAUI and Blazor Hybrid apps to .NET 9 with this step-by-step guide. Discover new features, improvements, and real-world examples from CodeSwissKnife app migration

⏱️ Upgrade .NET MAUI & Blazor Hybrid Apps to .NET 9 in Minutes! 🚀 Follow my CodeSwissKnife journey for faster performance & new features. #dotnet #maui #blazor #dotnet9 #upgrade www.ottorinobruni.com/how-to-upgra...

✅ Modernizing .NET — Part 6: Validators in CoreWCF How to implement pre-deserialization SOAP validation in CoreWCF using AssertValidator and IParameterInspector.

✅ New post in my Modernizing .NET series: Validators in CoreWCF — how to bring back pre‑deserialization SOAP validation using AssertValidator + ParameterInspector.
🔗 medium.com/@michael.kop...
#DotNet #DotNetCore #DotNet8 #DotNet9 #DotNet10 #ASPNet #ASPNetCore #CoreWCF #WCF #SOAP #CSharp

🧼 Modernizing .NET — Part 3: Surviving SOAP with CoreWCF How I revived legacy WCF SOAP services in .NET 8 using CoreWCF — without rewriting hundreds of public endpoints.

Next part of Modernizing .NET:
🧼 Part 3 - Migrating WCF SOAP services to .NET 8? I used CoreWCF to keep legacy endpoints alive—no rewrite needed.
🔗 medium.com/@michael.kop...
#WCF #CoreWCF #SOAP
#DotNet #DotNet8 #DotNet9 #ASPNetFramework #ASPNet #ASPNetCore #CSharp

C64 C Sharp Coding Brings the Commodore 64 Into the .NET Era - The Oasis BBS C64 C Sharp coding brings live C64 development to .NET, showing how C# and modern tools create real 8-bit programs with instant feedback.

C64 C Sharp Coding Brings the Commodore 64 Into the .NET Era
#Commodore64 #C64Dev #DotNet9 #CSharp #RetroComputing #8bitDev #RetroC64

theoasisbbs.com/c64-c-sharp-...

🧙‍♂️ Modernizing .NET — Part 2: HttpContext and the Dark Magic of Migration How I revived HttpContext.Current in .NET 8 to support legacy ASP.NET Framework code — without rewriting thousands of endpoints.

🧙‍♂️ Modernizing .NET – Part 2: HttpContext is the dark magic of ASP.NET Framework. Here's how I revived HttpContext.Current in .NET 8—without rewriting 1000 endpoints.
🔗 medium.com/@michael.kop...
#DotNet #DotNet8 #DotNet9 #ASPNetFramework #ASPNet #ASPNetCore #CSharp #CodeMigration #LegacyCode

How To Implement API Key Authentication In ASP.NET Core in .NET 9 If you want the full source code, download it from this link: https://www.elitesolutions.shop/

Learn how to secure your ASP.NET Core app with API key authentication in .NET 9! Discover step-by-step guidance to implement this security feature effectively. #ASPNetCore #DotNet9

🚀 Modernizing .NET — Part 1: C# Preprocessor Directives How I unified a legacy ASP.NET Framework and .NET 8 codebase using conditional compilation and custom preprocessor directives.

Modernizing .NET – Part 1
How I used C# preprocessor directives to keep one codebase across ASP.NET Framework and .NET 8.
🔗 medium.com/@michael.kop...
#DotNet #DotNet8 #DotNet9 #DotNetCore #ASPNet #ASPNetCore #ASPNetFramework #CSharp #CodeMigration #SoftwareModernization

🚀 30 minutes to go! Join Jason for "Effortless Distributed Systems with .NET Aspire" in Room 12 at 11:15. See how Aspire makes orchestration, messaging and observability refreshingly simple. Don't miss it! 🌟 #TechoramaNL #DotNet9 #Aspire #Messaging

🚀 30 minutes to go! Join Daniel for "The performance loop - A practical guide to profiling and benchmarking" in Mission 2 (JB) at 09:45 to learn how to measure and actually improve performance at scale. Don't miss it! 🌟 #TechoramaNL #DotNet9 #Performance

How to Upgrade .NET MAUI & Blazor Hybrid Apps to .NET 9 in Minutes - Ottorino Bruni Learn how to upgrade your .NET MAUI and Blazor Hybrid apps to .NET 9 with this step-by-step guide. Discover new features, improvements, and real-world examples from CodeSwissKnife app migration

🚀 Upgrade .NET MAUI & Blazor Hybrid to .NET 9 in minutes! Boost performance & security with CodeSwissKnife's insights. #dotnet #maui #blazor #dotnet9 www.ottorinobruni.com/how-to-upgra...

Cloud-Native Microservices in C#: Harnessing gRPC and Minimal APIs in .NET 9 How I Built Scalable, Performant Microservices Using C#’s Latest Cloud-Native Capabilities.

Unlock microservices efficiency with gRPC and Minimal APIs in .NET 9, boosting cloud-native solutions with seamless communication. Upgrade your C# skills for modern architecture! #Microservices #DotNet9

.NET 9 Feature That Will Kill Node.js I deployed a .NET application that starts in 12 milliseconds, uses 8MB of memory, and runs faster than the equivalent Node.js version

Delve into why .NET 9's enhancements might pose a challenge for Node.js. Learn about the key features that could shift the landscape for developers and possibly redefine the future of backend programming. #DotNet9 #Nodejs

Discover the key updates in .NET 9: enhanced performance, improved HTTP/3 support, and new C# 11 features. Perfect your applications with the latest tools in .NET Core 9. #DotNet9 #Programming

410 Deleted by author — Medium

Explore the future of .NET 9 optimization! Learn how compiler-level AI hints can enhance performance in overlooked areas. Stay ahead in C# programming with these insights. #DotNet9 #AIOptimization

Entire Caching Strategy will be replaced by this .NET 9 Feature Hybrid cache in production

Explore the game-changing .NET 9 caching strategy feature that improves performance & reduces complexity. Stay ahead by understanding its impact on modern app development. #DotNet9 #CachingSolutions

Why .NET 9 and C# 13 Are Game Changers for Full Stack Developers

Register Now: bit.ly/4np7vPq

Starts: 6th Oct @ 9:00 AM (IST)
Mode: Classroom & Online Training

Upskill with Naresh i Technologies – where careers begin

#DotNet #DotNet9 #CSharp #CSharp13

Become a Full Stack Developer with .NET 9 & C#13

Register Now: bit.ly/4np7vPq

Starts: 6th Oct @ 9:00 AM (IST)
Mode: Classroom & Online Training

Upskill with Naresh i Technologies – where careers begin

#DotNet #DotNet9 #CSharp #CSharp13 #FullStackDeveloper #MicrosoftStack

🚀 Unlocking the Next Level of Microservices: Real-World Event-Driven Architecture with .NET 9 Monoliths are the past. Microservices are the future. But how do you get there the right way?

Explore how .NET 9 unlocks the potential of event-driven microservices architecture! Delve into real-world applications and optimize your systems' responsiveness and scalability. #Microservices #DotNet9

Global Error Handling in .NET 9 If you want the full source code, download it from this link: https://www.elitesolutions.shop/

Global error handling can streamline your .NET 9 apps by centralizing error logging and response logic. Learn how structured exception handling improves app reliability. #DotNet9 #ErrorHandling