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Dependency Injection in .NET and ASP.NET Core (Udemy.com)

Master Dependency Injection in .NET and ASP.NET Core using C# + Interview Questions

Created by: Aref Karimi

Last updated November 2025

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What you will learn

  • Inject Dependencies using built-in .NET Core Dependency Injection Container
  • Resolve Dependencies Based on Given Conditions
  • Inject Services Directly Into The Views in ASP .NET Core
  • Inject Action Filters in ASP .NET Core
  • Plug Third-Party IoC Containers (e.g. AutoFac) into Dependency Injection Framework of ASP .NET Core
  • Dependency Injection in WPF Core (.NET Core 3)
  • Interview Questions

How it compares

Against the other 116 rated Udemy courses in ASP.NET on CourseDuck:

  • Rating4.3 out of 5higher than 31% of them
  • Reviews3,402#14 of 117 by number of reviews
  • Length1.9 hoursshorter than 93% of them
  • Last updatedNovember 2025more recently than 73% of them

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Quality Score

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Overall Score : 86 / 100

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Course Description

Boost your career prospects by mastering the cutting-edge techniques of Dependency Injection in .NET and ASP.NET Core with this comprehensive online course, now updated for .NET 9.

With Dependency Injection, you can eliminate the dependency between modules and classes, resulting in more modular, reusable, and maintainable code.

In the past, developers had to rely on third-party components and frameworks such as Unity, Ninject, and AutoFac; however, .NET and ASP.NET Core have made it easier than ever to implement Dependency Injection without complex frameworks.

Our course covers all the essential software engineering concepts and design principles you need to know. We will guide you through a series of hands-on projects that explain the various Dependency Injection features of .NET 9 and ASP.NET Core.

By the end of the course, you will be able to quickly design and code extensible, scalable, and testable applications using NET. This knowledge will significantly enhance your resume and position you as a skilled developer.

This course includes a series of interview questions about Dependency Injection in .NET  that will help you prepare for future job interviews.

You need not be an experienced developer to take advantage of this course. The course content is tailored to suit developers of all levels, new and experienced.

Enrol now and start your journey towards mastering dependency injection in .NET!

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Instructor Details

Aref Karimi

Aref is a seasoned technology leader, strategist, and entrepreneur with over 20 years of experience driving innovation and growth in the tech industry. As a CTO and advisor, Aref has helped startups and enterprises align technology with business goals, delivering measurable results.


Aref is also a published author of several top-selling books, including:

- Tech Leadership for Profit: The CTO's Guide to Building a Thriving IT Company.

- Digital Transformation: From Bricks to Bits!

- The Vendor Management Playbook: Turn Your Vendor Relationships into a Competitive Advantage.

In addition to being an accomplished author, Aref is a passionate educator who teaches courses on Udemy and LinkedIn Learning. His courses, consistently the highest-rated and best-selling for over seven years, empower professionals to excel in software development, observability, DevOps, and leadership by providing practical insights and actionable strategies.

Join Aref's courses to gain real-world expertise and elevate your career!

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Reviews

4.3

3,402 ratings on Udemy

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By Stacey Fayers on 4/9/2026

Sometimes the video quality was poor and my internet connection was fine. And the interview questions - it was so unnecessary to have that clock pop up on the screen. Couldn’t see the code anymore and doesn’t really give the user a chance to evaluate and answer. In a real interview, they wouldn’t take away the code from the screen. The user would have access to it to review code and think of how they’re going to answer the questions.

By Aditya Reddy S on 8/16/2024

Explanation was very clear, straight to the point, Most important part is the interview questions, rather be named as practical scenarios where I learnt and implemented, specially HttpClient factory. I highly recommend this tutorial.

By Anonymized User on 8/1/2023

everything was fine, but starting Chapter 15, there are just a lot of unclear things. like why TestClass was created and why is it injected into an actual concrete class. also there is an unused variables that added to the confusion why it was there.

By Anonymized User on 6/14/2022

Sincerely I would like to follow the course progress on my own, but I did not find the configurations needed from the resources. The theoretical part was good in general. The course title mentions .NET 6 but the exercise was developed in .NET Core 3.

By Darpan on 5/27/2022

This is a good course that provides what dependency injection is and how it works. It also provides a section for more advanced topics and some interview questions which I liked the most.

By Sourabh Sharma on 9/26/2021

Top notch content with the interview questions in the end help users to think and implment what they have learnt. Keep up the good work. Also share your other courses on .Net, OOPs, Solid Principles and Azure.

By Dalton Andrade on 12/16/2020

One of the best courses ever. No fuss, straight to point and engaging, with a section of practical real life problems-and-solution (i.e. Inteview Questions). Well done Aref, looking forward into your "ASP.NET Core Identity and Security (SECOND EDITION)" next!

By Carlton Brown on 11/12/2018

This course will allow anyone to get comfortable with the .Net Core framework as well the built in dependency injection features. The instructor was clear, engaging and direct about the points he brought across. I recommend any beginner with the .Net Core framework to take this course.

By Norik Osmani on 11/1/2018

Great course, exactly what we need to know how dependency injection works on .NET Core. I would really recommend for everyone who wants to start working on .Net Core, or wants to extend his/her knowledge.

By Arturo Carrion on 10/9/2018

La verdad es que me ha sido muy útil para refrescar los conceptos de los buenos principios de la buena programación y además para entender en forma clara y concisa lo nuevo que trae Net Core.

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