Learn CSHARP with Real Code Examples

Updated Nov 17, 2025

Introduction & Fundamentals Setup & Configuration Architecture & Deep Internals Performance & Security Development Workflow Learning & Career Growth Business & Strategy Examples

Architecture

C# -> IL via Roslyn compiler

IL executed by CLR

JIT optimizations

Cross-platform with .NET Core

Rendering Model

C# compiles to IL

Executed by CLR

Optimized via RyuJIT

Uses AOT in modern .NET

Architectural Patterns

Clean Architecture

Onion Architecture

DDD for enterprise apps

Event-driven with SignalR/Kafka

Real World Architectures

Enterprise ERP systems

ASP.NET microservice ecosystems

Unity game architectures

Cloud-native Azure apps

Design Principles

Productivity first

Type safety

Cross-platform runtime

Performance through JIT optimizations

Scalability Guide

Use async I/O everywhere

Use caching (Redis/IActionCache)

Use CQRS patterns

Scale via Kubernetes & Azure

Migration Guide

Move .NET Framework to .NET Core

Replace old async patterns

Use minimal APIs

Refactor to records and pattern matching