---
title: "Explain SOLID principles in context of C# development."  
description: "Explain SOLID principles in context of C# development."  
author: "Ponu Maurya"  
published: 2025-06-24  
updated: 2025-06-24  
canonical: https://www.mindstick.com/interview/34279/explain-solid-principles-in-context-of-c-sharp-development  
category: "c#"  
tags: ["c#"]  
reading_time: 1 minute  

---

# Explain SOLID principles in context of C# development.

## Answer:

- **S** – *Single Responsibility*: Each class should do one thing.
- **O** – *Open/Closed*: Classes open for extension, closed for modification.
- **L** – *Liskov Substitution*: Subtypes should be replaceable by base types.
- **I** – *Interface Segregation*: Use multiple small interfaces.
- **D** – *Dependency Inversion*: Depend on abstractions, not concrete classes.

**Example**:\
Use `IEmailService` and inject via constructor instead of hardcoding `SmtpClient`.

## Answers

### Answer by Ponu Maurya

## Answer:

- **S** – *Single Responsibility*: Each class should do one thing.
- **O** – *Open/Closed*: Classes open for extension, closed for modification.
- **L** – *Liskov Substitution*: Subtypes should be replaceable by base types.
- **I** – *Interface Segregation*: Use multiple small interfaces.
- **D** – *Dependency Inversion*: Depend on abstractions, not concrete classes.

**Example**:\
Use `IEmailService` and inject via constructor instead of hardcoding `SmtpClient`.


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Original Source: https://www.mindstick.com/interview/34279/explain-solid-principles-in-context-of-c-sharp-development

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