Enterprise Craftsmanship

  • Blog
  • Book
  • TDD Course
  • Pluralsight Courses
  • About
  • Archives

Tag .NET

January 30, 2015

IEnumerable interface in .NET and LSP

I often see developers saying that in most cases, use of IEnumerable breaks LSP. Does it? Let’s find out. This is the continuation of my article Read-Only Collections and LSP. It this post, I’d like to discuss IEnumerable interface from a Liskov Substitution Principle (LSP) perspective. Liskov Substitution Principle and IEnumerable interface To answer the question whether or not use of IEnumerable breaks LSP, we should step back and see what it means to break LSP.

November 22, 2014

C# Read-Only Collections and LSP

I often see programmers saying that .NET read-only collections violate Liskov Substitution Principle. Do they? The quick answer is no but let’s go through the whole story first.

1
Vladimir Khorikov
Vladimir Khorikov
Twitter Email LinkedIn
My book
Unit testing book
Click here to get a 40% discount
Pluralsight courses
Pluralsight ‒ Pragmatic Unit Testing
‒ Domain-Driven Design in Practice
‒ Applying Functional Principles in C#
‒ Database Delivery Best Practices
‒ Specification Pattern in C#
‒ Refactoring from Anemic Domain Model
‒ Domain-Driven Design: Working with Legacy Projects
‒ CQRS in Practice
‒ DDD and EF Core: Preserving Encapsulation
‒ Validation and DDD
‒ Encapsulating EF Core Usage
‒ Prepare for coding interviews with CodeStandard
citadel Citadel Password Manager Privacy first. No data collected, period.
Most Popular Articles
‒ EF Core 2.1 vs NHibernate 5.1: DDD perspective
‒ C# and F# approaches to illegal states
‒ Optimistic locking and automatic retry
‒ Entity vs Value Object: the ultimate list of differences
‒ DTO vs Value Object vs POCO
‒ 3 misuses of ?. operator in C# 6
‒ Specification pattern: C# implementation
‒ Database versioning best practices
‒ Unit testing private methods
‒ Functional C#: Handling failures, input errors
‒ REST API response codes: 400 vs 500
MSMVP
Recent Articles
‒ Storing information in its highest form
‒ Which collection interface to use?
‒ Generic types are for arguments, specific types are for return values
‒ Modeling Relationships in a DDD Way
‒ Encapsulating EF Core Usage: New Pluralsight course
‒ Collections and Primitive Obsession
‒ How to Assert Database State?
‒ Should you Abstract the Database?
‒ Database and Always-Valid Domain Model
‒ Specification Pattern vs Always-Valid Domain Model
» All articles
© 2025 Vladimir Khorikov. Made with Hugo.