C# Lessons

These lessons focus on common problems in C# applications such as null handling, architecture issues, and maintainability.

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Beginner

Null Handling Gone Wrong

• Topic: null-safety, clean code
• Focus: avoiding NullReferenceException

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Intermediate

God Service

• Topic: architecture, separation of concerns
• Focus: breaking down large services

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Exception Chaos

• Topic: exceptions, error handling
• Focus: avoiding catch-all blocks

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How to use

1. Open the lesson folder
2. Start with README.md
3. Complete task.md
4. Use hints.md if needed
5. Compare with solution/
6. Read explanation.md