C# and .NET

Lessons

1. 1

   .NET Ecosystem and Modern C#

   Free

   Explain the .NET ecosystem, what C# can build, and the difference between modern .NET and .NET Framework.

   Beginner·30 min
2. 2

   C# Fundamentals

   Use types, control flow, methods, namespaces, using directives, and modern C# syntax.

   Beginner·50 min
3. 3

   OOP in C#

   Write C# classes, interfaces, abstract classes, records with access modifiers and auto-properties.

   Intermediate·55 min
4. 4

   C# Type System: Value vs Reference Types

   Distinguish value vs reference types, use structs + enums + nullable reference types.

   Intermediate·45 min
5. 5

   Collections and LINQ

   Use LINQ method syntax to filter, map, sort, group, aggregate.

   Intermediate·60 min
6. 6

   Async/Await in C#

   Use the Task-based async pattern with ConfigureAwait and cancellation tokens.

   Intermediate·55 min
7. 7

   ASP.NET Core REST APIs

   Build REST APIs in ASP.NET Core with minimal APIs or controllers, DI, and middleware.

   Intermediate·70 min
8. 8

   Entity Framework Core

   Use EF Core for code-first migrations, LINQ queries, relationships, and avoid N+1.

   Intermediate·65 min
9. 9

   C# for Game Dev: Unity Intro

   Orient yourself in Unity: MonoBehaviour, Update vs FixedUpdate, GameObjects + Components.

   Beginner·45 min
10. 10

    Testing in C#

    Write unit tests with xUnit + mock with Moq + assert with FluentAssertions.

    Intermediate·50 min
11. 11

    Passion Project: ASP.NET Core REST API

    Build, test, and deploy an ASP.NET Core REST API with EF Core, JWT auth, Swagger, and Azure deployment.

    Intermediate·360 min
12. 12

    C# and .NET Job Readiness

    Translate C# skills into resume bullets + interview answers for .NET backend / Unity / Microsoft-stack roles.

    Intermediate·30 min