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Your app is hiding the error from you on purpose. In Development vs Production, ASP.NET Core behaves completely differently.

NET Core and Web APIs ✓ Building Real-World Projects ✓ Git and GitHub ✓ Deploying Your Applications ✓ Building Your ...

The most common production 500 has nothing to do with your code - it's your database and external APIs. A dead SQL connection ...

A cache stampede happens when one hot key expires and every concurrent request in ASP.NET Core runs the same SQL Server ...

In this video, we'll improve the user interface of our ASP.NET Core MVC Book Management System using Bootstrap.

Build a complete Employee Management CRUD application from scratch using Angular, ASP.NET Core Web API, SQL Server, ...

Return HTML rendered as a PDF download from an ASP.NET Core minimal API endpoint in C#, asynchronously, and render ...

Learn how to send webhook notifications from an ASP.NET Core application to external systems. This video covers the ...

Your ASP.NET Core API feels slow? Learn how caching can make it faster!** Are you building ASP.NET Core Web APIs and want ...

... umbraco asp.net core, dotnet dependency injection, c# dependency injection, dotnet 8, dotnet 9, asp.net core tutorial, umbraco ...

Want to make your ASP.NET Core APIs faster? Learn Redis Caching with a complete hands-on project!** In **Class 27 of the Full ...

This class isn't registered in DI, but its constructor still receives a registered dependency. Discover how ActivatorUtilities.

NET Framework vs Modern .NET Why learn .NET in 2026 C# programming tutorial ASP.NET Core Web API ASP.NET Core tutorial ...

NET 8 support ends November 10, 2026. After that date Microsoft ships no more security patches for .NET 8 or .NET 9. Today we ...

If you are still using Nested Content or even Block List in 2026, you are building legacy. Block Grid Editor is Umbraco's page ...

BackgroundService is registered as Singleton by default in .NET Host. It lives for the lifetime of the application. Scoped services ...

Stop staring at the useless browser page. The browser lies. Your server logs tell the truth. In this video I show you why HTTP 500 ...

NET Core controller or Minimal API endpoint. It doesn't! Before your C# code executes even a single instruction, your request ...

I removed a singleton registration. The endpoint still worked—but its object IDs started changing. This C# demo explains ...

Mixing up Dependency Injection lifetimes in .NET will quietly corrupt your database transactions and crash your APIs under ...