SOLID Principles for Clean C# Software Design — PickAClass
⏱ 2h 42m 📚 27 lessons 🎧 Audio version

SOLID Principles for Clean C# Software Design

Master the foundational rules of object-oriented design in C# to write highly maintainable, testable, and robust code from scratch.

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About this course

Writing code that works is only the first step; writing code that can adapt, scale, and survive changes is the real challenge. If you find your C# projects becoming tangled, difficult to test, or fragile when requirements change, mastering object-oriented design is the solution. This text-based course guides you through the five core SOLID principles, showing you how to transform messy, tightly coupled code into elegant, flexible architecture. You will learn to recognize design flaws early and apply proven structural patterns using modern C# features. What you'll learn: - Understand key terminology, foundational software design concepts, and why clean code matters. - Apply the Single Responsibility and Open/Closed principles to write modular, extensible classes. - Implement Liskov Substitution and Interface Segregation to design robust inheritance hierarchies and clean interfaces. - Utilize Dependency Inversion alongside modern C# dependency injection patterns to decouple your application layers. - Practice refactoring legacy code snippets into clean, SOLID-compliant structures through written step-by-step exercises. - Read and analyze real-world design scenarios to choose the right principle for any architectural challenge. You will start with core definitions and the fundamental problems that SOLID principles solve, before progressing through detailed, written breakdowns of each principle with practical C# examples. This course is designed for beginner to intermediate C# developers who want to transition from writing basic scripts to designing professional-grade software. No advanced architectural experience is required. Start reading today to elevate your programming standards and build software that stands the test of time.

Course contents

What you'll get

  • 📜 Certificate of completion
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  • 💬 Personal AI tutor
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  • 🎧 Audio version included
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  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 14-day refund
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  • ⚡ Short & focused
    2h 42m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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PickAClass
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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
SOLID Principles for Clean C# Software Design
Skills demonstrated
✓
Behavioral pattern analysis
Foundational
1.2 hrs
✓
Decision-architecture frameworks
Proficient
1.4 hrs
✓
A/B test design
Proficient
1.7 hrs
✓
Behavioral copywriting
Advanced
1.9 hrs
P
PickAClass — Name Surname
SOLID Principles for Clean C# Software Design
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

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By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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