Featured resource
2026 Tech Forecast
2026 Tech Forecast

Stay ahead of what’s next in tech with predictions from 1,500+ business leaders, insiders, and Pluralsight Authors.

Get these insights
  • Course

C# Extension Methods

One of the most powerful and underused features of C#: extension methods. Master them to cut duplicate code and add consistency across your projects. This course teaches all you need to improve your .NET Core and .NET Framework apps with extensions.

Beginner
1h 26m
(287)

Created by Elton Stoneman

Last Updated Oct 10, 2025

Course Thumbnail
  • Course

C# Extension Methods

One of the most powerful and underused features of C#: extension methods. Master them to cut duplicate code and add consistency across your projects. This course teaches all you need to improve your .NET Core and .NET Framework apps with extensions.

Beginner
1h 26m
(287)

Created by Elton Stoneman

Last Updated Oct 10, 2025

Get started today

Access this course and other top-rated tech content with one of our business plans.

Try this course for free

Access this course and other top-rated tech content with one of our individual plans.

This course is included in the libraries shown below:

  • Core Tech
What you'll learn

Extension methods are a key feature of C# - they boost productivity, increase the readability of your code, and make it easy to implement standards across your projects. In this course, C# Extension Methods, you will learn all you need to know about extension methods in .NET Framework and .NET Core. First, you will learn the basics of extension methods: how to use them, how to write them, and how the tooling in Visual Studio and VS Code helps you to work with them. Then, you will discover the danger areas and the best practices for building your own extension methods. Finally, you will explore how to package and publish your own extension method library. By the end of this course, you will have a complete understanding of how to get value from this powerful feature.

C# Extension Methods
Beginner
1h 26m
(287)
Table of contents

About the author
Elton Stoneman - Pluralsight course - C# Extension Methods
Elton Stoneman
39 courses 4.5 author rating 5987 ratings

Elton is an independent consultant specializing in systems integration with the Microsoft stack. He is a Microsoft MVP, blogger, and practicing Technical Architect.

Get started with Pluralsight