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Design Patterns in C#: From Theory to Practice

Design Patterns in C#: From Theory to Practice

Master classic GoF design patterns in C#. Learn how to apply creational, structural and behavioral patterns to build clean, flexible and maintainable systems.

Price 990β‚Ύ
Monthly Paymentβ‚Ύ 497β‚Ύ Γ— 2 months
Delivery Modes Online β€’ In-Person
Duration 6 weeks
Level Advanced
Total Lessons 13 lessons
Lessons per Week 2
Lesson Duration 2 hours

Syllabus

This course covers the following design patterns grouped by creational, structural and behavioral categories:

  • Module 1: Creational β€” Abstract Factory
  • Module 2: Creational β€” Builder
  • Module 3: Creational β€” Factory Method
  • Module 4: Creational β€” Prototype
  • Module 5: Creational β€” Singleton
  • Module 6: Structural β€” Adapter
  • Module 7: Structural β€” Bridge
  • Module 8: Structural β€” Composite
  • Module 9: Structural β€” Decorator
  • Module 10: Structural β€” Facade
  • Module 11: Structural β€” Flyweight
  • Module 12: Structural β€” Proxy
  • Module 13: Behavioral β€” Chain of Responsibility
  • Module 14: Behavioral β€” Command
  • Module 15: Behavioral β€” Interpreter
  • Module 16: Behavioral β€” Iterator
  • Module 17: Behavioral β€” Mediator
  • Module 18: Behavioral β€” Memento
  • Module 19: Behavioral β€” Observer
  • Module 20: Behavioral β€” State
  • Module 21: Behavioral β€” Strategy
  • Module 22: Behavioral β€” Template Method
  • Module 23: Behavioral β€” Visitor

Available Languages

πŸ‡¬πŸ‡§ English Available
πŸ‡·πŸ‡Ί Russian Available
πŸ‡¬πŸ‡ͺ Georgian Coming Soon
πŸ‡ΊπŸ‡¦ Ukrainian Available

What You Need Before Starting

Basic computer skills and willingness to learn. Course materials will guide you step by step.

Prerequisites

Solid C# programming skills and understanding of OOP principles are required.

Your Instructor

Oleksii Anzhiiak

Oleksii Anzhiiak

Software Architect, Senior .NET Engineer & Co-Founder

Oleksii Anzhiiak is a Software Architect, Senior .NET Engineer, and Co-Founder of ToyCRM.com and ProfectusLab. With over 15 years of experience, he specializes in distributed systems, cloud infrastructure, high-load backend development, and identity platforms. Oleksii designs complex architectures, builds secure authentication systems, and develops modern engineering education programs that help students achieve real career results.

🎁

All new students receive a complimentary trial lesson during their first visit to our learning center.

Available Offers

Check current discounts and special conditions for this course.

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Design Patterns in C#: Practical Application

Learn classic GoF design patterns in C#. Understand when and how to apply patterns in real-world systems without overengineering.

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This course focuses on understanding and applying classic design patterns in C# with a strong emphasis on real-world usage. Instead of memorizing pattern definitions, students learn why patterns exist, which problems they solve, and when their usage is justified in production systems.

You will study creational, structural, and behavioral patterns through practical examples and refactoring exercises. Each pattern is explained in context, including its benefits, drawbacks, and common misuse scenarios that lead to overengineering.

The course helps developers develop architectural judgment β€” the ability to choose simplicity when patterns are unnecessary and apply patterns correctly when systems grow in complexity.

Key Skills You'll Master

  • Creational patterns: Factory, Builder, Singleton
  • Structural patterns: Adapter, Decorator, Facade
  • Behavioral patterns: Strategy, Observer, Command
  • Refactoring procedural code into patterns
  • Identifying overengineering and anti-patterns
  • Architectural decision-making

What You Can Build After This Course

  • Apply design patterns only where they add value
  • Refactor legacy code into cleaner architectures
  • Avoid unnecessary abstraction and complexity
  • Explain architectural decisions confidently
  • Improve maintainability of C# codebases