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Elton Stoneman

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.

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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.

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.

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What's inside

Syllabus

Course Overview
Getting Started with Extension Methods
Best Practices for Using Extension Methods
Building Your Own Extension Method Library
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Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Expands possibilities for more readable code and better organization with extensions
Taught by Elton Stoneman, known for their work in Microsoft .NET technology
Helps learners improve code readability and cross-project consistency
Covers usage, writing, and IDE assistance for extension methods
Examines best practices and common pitfalls in developing extension methods
Students will master extension methods for use in .NET Core and .NET Framework applications

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in C# Extension Methods with these activities:
Read 'Extension Methods in C#' by Mark J. Price
Gain a comprehensive understanding of C# extension methods by reading this book, which provides detailed explanations and examples.
Show steps
  • Purchase or borrow the book 'Extension Methods in C#'
  • Read the book thoroughly
  • Take notes and highlight important concepts
Review Entity-Framework
Refresh your understanding of Entity Framework, which is foundational to .NET development and commonly used in conjunction with extension methods.
Browse courses on Entity Framework
Show steps
  • Read through the official Entity Framework documentation
  • Work through a few beginner-level tutorials on Entity Framework
  • Create a small sample project using Entity Framework
Discuss extension methods with peers
Enhance understanding by engaging in discussions with peers.
Browse courses on Extension Methods
Show steps
  • Find a peer or group to discuss with
  • Share knowledge and insights
  • Collaborate on solving problems
Ten other activities
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Show all 13 activities
Follow an online tutorial on extension methods
Supplement course material with additional guidance from an online tutorial.
Browse courses on Extension Methods
Show steps
  • Find a suitable tutorial
  • Follow the tutorial step-by-step
  • Apply the concepts learned in the tutorial
Solve C# Extension Method Practice Problems
Reinforce your understanding by solving practice problems that test your ability to create and use extension methods effectively.
Browse courses on Extension Methods
Show steps
  • Find a collection of C# extension method practice problems
  • Solve the practice problems
  • Review your solutions and identify areas for improvement
Solve extension method exercises
Improve understanding of extension methods by solving practical exercises.
Browse courses on Extension Methods
Show steps
  • Find a set of extension method exercises
  • Solve the exercises
  • Review and understand the solutions
Follow C# Extension Method Tutorials
Supplement your learning by following guided tutorials that provide step-by-step instructions for creating and using extension methods in C#.
Show steps
  • Find a reputable online tutorial on C# extension methods
  • Follow the tutorial step-by-step
  • Experiment with the code provided in the tutorial
Join a C# Extension Methods Study Group
Collaborate with other learners by joining a study group focused on C# extension methods. This will provide opportunities to share knowledge and support.
Browse courses on Extension Methods
Show steps
  • Find or create a study group for C# extension methods
  • Participate in regular study sessions
  • Discuss concepts, share resources, and work on projects together
Implement an extension method
Demonstrate understanding of how to write extension methods by implementing one for a new feature.
Browse courses on Extension Methods
Show steps
  • Choose a feature to add
  • Design the extension method
  • Implement the extension method
  • Test the extension method
Create a presentation on extension methods
Solidify knowledge by creating a presentation that explains the concepts to others.
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Show steps
  • Outline the presentation
  • Gather and organize the content
  • Design the presentation slides
  • Rehearse and deliver the presentation
Write a Blog Post on Extension Methods
Enhance your understanding by writing a blog post about C# extension methods. This will help you solidify your knowledge and share it with others.
Browse courses on Extension Methods
Show steps
  • Choose a specific topic related to C# extension methods
  • Research the topic thoroughly
  • Write a detailed outline for your blog post
  • Create the content for your blog post
  • Proofread and edit your blog post
Contribute to an Open-Source Project Using C# Extension Methods
Apply your skills in a real-world setting by contributing to an open-source project that utilizes C# extension methods.
Browse courses on Open Source
Show steps
  • Find an open-source project that welcomes contributions
  • Review the project's documentation and contribution guidelines
  • Identify an area where you can contribute using C# extension methods
  • Develop and submit your contribution
Build a Library of C# Extension Methods
Deepen your knowledge by creating a library of C# extension methods that can be reused in your own projects or shared with others.
Browse courses on Extension Methods
Show steps
  • Identify a set of common tasks or functions that could benefit from extension methods
  • Design and implement your extension methods
  • Test your extension methods thoroughly
  • Package and publish your extension methods library

Career center

Learners who complete C# Extension Methods will develop knowledge and skills that may be useful to these careers:
Software Engineer
For Software Engineers, efficient and elegant code is a competitive advantage. In this course, you will learn about extension methods, which can be used to improve the readability and maintainability of code. This course will teach you how to use extension methods and how to write them. Engineers with a strong foundation in extension methods will have an advantage when applying for jobs.
Software Architect
Software Architects create and design software applications. They must have a broad understanding of software development, which includes knowledge of extension methods. This course will help Software Architects to build better, C# software applications. Architects with experience in extension methods will be able to communicate more effectively with Software Engineers on their teams and will be of more value to their organization.
Computer Programmer
Computer Programmers build and maintain software applications, often working on teams with Software Engineers and Software Architects. Programmers who have completed this course will be able to apply extension methods to their own code and the code of others. This will let them to work faster and with greater efficiency. Programmers with knowledge of extension methods will be more valuable to their teams and will have greater success in their careers.
Web Developer
Web Developers build and maintain websites and online applications. Some Web Developers may also be responsible for writing backend code in languages like C#. For Web Developers who work with C# code, this course will be helpful. Extension methods can be used to make web applications more efficient and easier to read. Web Developers with this knowledge will have an advantage over those who do not.
Database Administrator
Database Administrators design and maintain database management systems. While many systems are written in languages other than C#, some Database Administrators may need to work with C# code. This could happen when they are working with applications that use C# to connect to databases. For Database Administrators who work with C# code, this course will be interesting. Extension methods can help Database Administrators to write more efficient and more maintainable code.
Systems Analyst
Systems Analysts are responsible for studying the needs of an organization and then designing solutions to meet those needs. For Systems Analysts who work with C# code, this course will be helpful. Extension methods can be used to write more efficient and more maintainable code. Systems Analysts who have experience in this area will be able to offer greater value to their organizations.
Information Security Analyst
Information Security Analysts are responsible for protecting their organizations from cyberattacks and data breaches. Some Information Security Analysts may need to work with C# code. For these Analysts, this course may be useful. Extension methods can be used to write more secure and more reliable code.
Business Analyst
Business Analysts work with stakeholders to understand their needs and then design solutions to meet those needs. Business Analysts who have some knowledge of C# may find this course interesting. Extension methods can be used to write more efficient and more maintainable code. Business Analysts with this knowledge will be able to offer greater value to their organizations.
Project Manager
Project Managers are responsible for planning and executing projects. They may work with teams of Software Engineers, Software Architects, and Computer Programmers. For Project Managers who work with C# code, this course may be helpful. Extension methods can be used to write more efficient and more maintainable code. Project Managers with this knowledge will be able to offer greater value to their organizations.
Technical Writer
Technical Writers create documentation for software and other technical products. Some Technical Writers may need to work with C# code and this course may be useful. Extension methods can be used to write code that is more flexible and easier to read. Technical Writers with this knowledge will be able to offer greater value to their organizations.
Quality Assurance Analyst
Quality Assurance Analysts test software applications for bugs and other issues. Some Quality Assurance Analysts may need to work with C# code. For these Analysts, this course may be useful. Extension methods can be used to write more efficient and more maintainable code.
UX Designer
UX Designers create the user experience for software applications and other products. Some UX Designers may need to work with C# code. For these Designers, this course may be useful. Extension methods can be used to write code that is more flexible and easier to read. UX Designers with this knowledge will be able to offer greater value to their organizations.
Data Scientist
Data Scientists use data to solve problems and make predictions. Some Data Scientists may need to work with C# code. For these Scientists, this course may be useful. Extension methods can be used to write code that is more efficient and more maintainable.
Machine Learning Engineer
Machine Learning Engineers build and maintain machine learning models. Some Machine Learning Engineers may need to work with C# code. For these Engineers, this course may be useful. Extension methods can be used to write code that is more efficient and more maintainable.
Data Analyst
Data Analysts use data to solve problems and make predictions. Some Data Analysts may need to work with C# code. For these Analysts, this course may be useful. Extension methods can be used to write code that is more efficient and more maintainable.

Reading list

We've selected 15 books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in C# Extension Methods.
Provides a comprehensive overview of extension methods in C#, including their benefits, limitations, and best practices. It also includes practical examples and exercises to help you learn how to use extension methods effectively.
Is the definitive guide to the C# programming language. It covers a wide range of topics, including extension methods. It's a valuable reference for understanding the design and implementation of extension methods.
Comprehensive guide to using C# extension methods. It covers a wide range of topics, including the basics of extension methods, how to use them effectively, and how to avoid common pitfalls.
Comprehensive guide to the C# programming language. It covers a wide range of topics, including extension methods. It's a valuable reference for understanding the details of how extension methods work.
Covers a wide range of advanced C# topics, including extension methods. It provides in-depth coverage of the concepts and techniques involved in using extension methods effectively.
Practical guide to using C# extension methods. It covers a wide range of topics, including how to create and use extension methods, as well as how to avoid common pitfalls.
Comprehensive guide to C# 7, covering a wide range of topics, including extension methods. It valuable resource for understanding the concepts behind extension methods and how to use them effectively.
Provides a comprehensive overview of design patterns, including a chapter on how to use design patterns with extension methods. It valuable resource for anyone who wants to learn more about design patterns.
Comprehensive guide to the Common Language Runtime (CLR). It covers a wide range of topics, including extension methods. It's a valuable reference for understanding the underlying implementation of extension methods.
Practical guide to using C# extension methods. It covers a wide range of topics, including how to use extension methods to extend the functionality of existing types and how to create your own extension methods.
Provides a comprehensive overview of C#, including a chapter on extension methods. It valuable resource for anyone who wants to learn more about C#.
Comprehensive guide to using C# in conjunction with the .NET 4.6 Framework. It covers a wide range of topics, including extension methods. While this book will not substitute hands-on experience when it comes to using extension methods, it's an excellent resource when you come across concepts that are unfamiliar or need extra clarification.
Provides a comprehensive overview of C# 5.0, including a chapter on extension methods. It valuable resource for anyone who wants to learn more about C# 5.0.
Provides a comprehensive overview of C# 4.0, including a chapter on extension methods. It valuable resource for anyone who wants to learn more about C# 4.0.

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