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Complete C# Masterclass (Udemy.com)

Master C# Programming from A to Z. Dive deep into .NET, OOP, Clean Code, LINQ, WPF, Generics, Unit Testing, and more.

Created by: Denis Panjuta

Last updated October 2025

Our take

Based on the ratings of 37,917 students, a sample of their written reviews and the syllabus, as the course stood in October 2025. No course pays to be reviewed.

Denis Panjuta's C# course runs about 46 hours across 484 lectures and 19 sections. It starts with variables and loops, moves through OOP, collections, events and delegates, then switches to WPF desktop apps, SQL Server databases and LINQ. More than 183,000 students have enrolled. It is pitched at everyone, and the reviews back that up for true beginners. The catch is that the WPF and database parts need a Windows PC, so Mac and Linux learners will hit a wall around the halfway point.

Reviewers like the early chapters most. They call the teaching easy to follow, and one likes how concepts are explained by stepping through code in the debugger. The complaints cluster later. Several say the second half feels rushed and thinner than the first, one found a later chapter outdated and could not locate items such as Data Source, and another wanted the Unity material dropped. Others found the coding exercises awkward, said the articles look auto-generated with broken tables, or struggled with the accent. A few wanted actual coding sooner.

The rating is 4.5 from 37,917 reviews, with 21,950 of them five stars and only 340 at one star. That is a strong record for a paid course this long. It was last updated in October 2025, and the sections marked as updated are the early ones. Recommended for a beginner on Windows who wants one long, friendly course. Plan on adding your own projects, since reviewers say bigger challenges are missing.

Best forWindows users starting C# from zero who want to end up building desktop apps with WPF and a database.
Skip it ifYou are on a Mac or Linux machine, or want deep, current .NET material rather than WPF and a bit of Unity.

Pros

  • Early sections are easy to follow, and one reviewer liked how code is explained by stepping through the debugger
  • Covers loops and OOP through events, delegates, LINQ and SQL Server databases in one place
  • A three-part WPF currency converter gives beginners a real desktop app to build
  • Very well rated: 21,950 five-star and 12,268 four-star ratings from 37,917 reviews

Cons

  • Reviewers say the second half feels rushed and less detailed than the first
  • WPF and database sections need Windows, and one reviewer found a later chapter outdated
  • Coding exercises and some articles draw criticism, and reviewers want bigger projects
I think Denis is a very good teacher. I really liked the way he explained everything through debugging. This made understanding how code works much easier.
Kevin, a student

True beginners are fine at the start, but the WPF and database parts need a Windows PC and Visual Studio.

Featured in our guide: The Best C# and .NET Courses on Udemy in 2026

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What you will learn

  • Learn the fundamentals of programming using C#
  • Learn how to use variables, methods, loops, conditions
  • Fully understand how OOP (object oriented programming) works and how to use it
  • Build beautiful GUIs (Graphical User Interfaces) with WPF (Windows Presentation Foundation)
  • Create video games using C# and Unity 3D
  • Learn how to handle errors and avoid them
  • Work with files, folders, text and paths in .NET framework
  • Learn how to use LINQ and Lambda Expressions
  • Learn how to use Databases with MSSQL
  • Learn advanced techniques like threading and asynchronus development
  • Learn how to use C# generics to build senior-level software
  • Learn Clean Code with SOLID and all of its best practices

Course content

19 sections · 484 lectures · 46 hours of video 56 quizzes, 30 coding exercises, 1 assignment, 52 articles

  1. 1UPDATED: Introduction, Overview of Visual Studio, DataTypes And Variables 6 free previews50 lectures · 7 quizzes · 3.2 hours
  2. 2UPDATED: Making Decisions22 lectures · 6 quizzes · 1.6 hours
  3. 3UPDATED: Loops20 lectures · 4 quizzes · 1.6 hours
  4. 4UPDATED: Functions and Methods17 lectures · 3 quizzes · 1.6 hours
  5. 5UPDATED: Object Oriented Programming (OOP)38 lectures · 5 quizzes · 3.2 hours
  6. 6UPDATED: Collections in C#21 lectures · 6 quizzes · 2 hours
  7. 7UPDATED: Error Handling10 lectures · 4 quizzes · 45 min
  8. 8UPDATED: Inheritance17 lectures · 5 quizzes · 1.4 hours
  9. 9UPDATED: Interfaces and Polymorphism19 lectures · 6 quizzes · 1.4 hours
  10. 10UPDATED: Structs in C#7 lectures · 2 quizzes · 58 min

Who it is for

The instructor says it suits

  • Everyone who wants to learn C#
  • Every developer that needs to learn C# for their job
  • Everyone who wants become a software developer
  • Everyone who wants to build PC programs with a beautiful UI using WPF
  • Everyone who wants to learn C# to build video games with Unity 3D

What you need before you start

  • Visual Studio Community Edition (FREE)
  • A Windows (10) PC is required for the WPF and Database portions of the course

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Quality Score

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Overall Score : 90 / 100

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Course Description

Learn C# from A to Z with this Masterclass and become a C# Software Developer.


In this course, you are going to discover how to become a C# developer by learning all the real-world software development skills that you'll need.


Are you ready to dive deep into the world of C# and .NET framework development?


I have created a course that makes the path to becoming a skilled C# developer as easy as possible, all with this C# Masterclass!


You start off by learning the C# basics and programming concepts in general:

  • Variables

  • Arrays

  • If Statements

  • Loops

  • Building Algorithms & Logic


Then you learn the pillars of object-oriented programming:

  • Classes

  • Methods

  • Objects

  • Inheritance

  • Polymorphism

  • Clean Code

  • SOLID principles


Once you mastered them, you will go into advanced C# Topics, such as:

  • Events

  • Delegates

  • Interfaces

  • Generics

  • Databases

  • LINQ

  • WPF

  • Unit Testing


The C# Masterclass is full of amazing exercises and best practices that'll help you get into professional C# development in a fast and fun way.


In addition to the C# development topics you'll also dive into some of the most popular Frameworks that C# developers use around the world! Such as WPF for building Desktop applications and Unity for building Games.


I'm here to help!

I know that learning to code can be hard at times, and sometimes you just get stuck. But no worries, I am here to help you. Me and my team answer each question as quickly as we can and make sure that you reach your goal of becoming a developer.


Who is this course for?

The course is for anyone, who wants to learn C# and wants to become professionally good in C# programming. No experience is required whatsoever. It is designed so that anyone who can handle a mouse and keyboard will succeed in finishing it.


Full 30-Day Money-Back Guarantee

This course comes with a 30-day full money-back guarantee. Take the course, watch every lecture, and do the exercises, and if you are not fully satisfied, ask for a full refund within 30 days. All your money back, no questions asked. 

About me, your instructor:

My name is Denis Panjuta, and in my courses, I have taught over 500.000 students how to code. I have a Bachelor of Engineering from the University of Applied Sciences in Constance (Germany). I love teaching and creating high-quality courses. My mission? Teaching 10.000.000 people how to code. 


See, this is the only C# course you will ever need.


You will learn all the C# skills that you need to know to succeed in C# and .NET coding! 


Don’t waste any more time and become a C# software engineer by starting this course now.

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Instructor Details

Denis Panjuta

Hi. I'm Denis. I have a degree in engineering from the University for Applied Science Konstanz in Germany and discovered my love for programming there.

Currently, over 500,000 students learn from my courses. This gives me much energy to create new courses with the highest quality possible. I aim to make learning to code accessible for everyone, as I am convinced, that IT is THE FUTURE! 

So join my courses and learn to create apps, games, websites, or any other type of application. The possibilities are limitless.

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Reviews

4.5

37,917 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Nitin Kushwah on 7/16/2026

This is an amazing C# course! I learned C# for the first time through this course, and I really enjoyed the learning experience. The instructor's teaching style is excellent. Every concept is explained in a simple and easy-to-understand way, making even difficult topics easy to grasp. The coding exercises and examples helped me build my confidence and improve my programming skills. Thank you for creating such a wonderful course. I highly recommend it to anyone who wants to learn C# from scratch!

By Marcel Schuitema on 7/9/2026

Very good course to learn C# from the start to intermediate/expert level. Personally I would leave out all the Unity videos and keep the focus on C# / .NET. I would prefer more C# material than all the Unity videos. Don't mix all kinds of materials from all kinds of courses. And I also prefer the first half with the quizzes and exercises instead of the second. But please keep up the great work!

By Kevin on 7/7/2026

I think Denis is a very good teacher. I really liked the way he explained everything through debugging. This made understanding how code works much easier. I also think that because Denis is not a native English speaker, his explanations are more — how to say — down to earth, explaining things almost like to a child. And this is how programming should be taught. Some minor improvements that I can suggest: maybe add more challenges or projects in the future. I felt like those were missing. There were coding exercises, but it would have been fun to build something much bigger. Also, the Unity part was a real pain for me, and I decided to skip the last part. I see that those videos were uploaded almost 10 years ago, and the Udemy platform has changed a lot since then, so it was really difficult to follow along. Also, many of the assets used there were no longer working.

By Martin Gedatke on 7/4/2026

The course has been good so far, the language is understandable and I can follow along easily. The articles provided seem to be generated content, which in itself is not a problem - but whenever something is compared within one such article and things are meant to be displayed in table format, the formatting is broken, which gives the impression that the article wasn't proof-read. Some of the topics covered by articles, such as abstract classes, really deserve their own video in my opinion. All that said, I am very much enjoying myself and did spent over 10 hours this week just following along on this course, which really shows that the instructor managed to capture my attention pretty well. This course is really good, but could be that little bit better still.

By Pasan on 6/11/2026

A Great Course! However, the course could benefit from a more structured progression. Some concepts are introduced and discussed before they are properly explained, which makes the flow feel disorganized and a bit confusing. As a result, it may be challenging for someone learning C# for the first time to follow along.

By Tatia Wagner on 6/10/2026

Als Anfängerin in C# hilft mir dieser Kurs extrem weiter. Die Erklärungen sind einfach top und der Trainer redet sehr angenehm, sodass man gerne zuhört. Am Anfang habe ich erst einmal ein paar Grundlagen wiederholt. Man lernt hier wirklich viel Neues, muss sich aber auch VIELES selbst nebenbei erarbeiten..

By Harsh choudhary on 5/28/2026

This course is the best match for me. I can connect with teacher with his teaching. He explains good give good examples, have code test in between and quizzes. It is a good mixture of coding and unity learning. I this course recommend to everyone who is starting to learn c# and Unity.

By Alex Chavez Valenzuela on 4/16/2026

A lot of topics! If you are a beginner, half of the course is great. If you are intermediate, you're better off searching for specialized courses in the topics you want to dive in. The beginner parts are good for beginners, but some of the advanced parts feel a little rushed and out of context. I think a dedicated course, although shorter, be more manageable for learners, for example, for WPF and Threads.

By Niklas K. on 4/5/2026

After finishing this course I can say that I'm completely satisfied with the content and that I'm glad I found this course. Every important part of programming with C# was covered very well and I've learned a lot thanks to the tutors. Denis and Jannick are fantastic in what they are doing and I would always recommend their courses to other people that want to learn a programming language, a framework etc. My only only criteria in a few videos is that some lines of code were copied and pasted. These lines of code could've been explained a bit deeper because at the beginning it was a bit challenging for me to analyze them while following the course. In the end I'm super happy with this course. Thanks to this course I've become addicted to C# and I will continue my Journey on extending my programming skills!

By Rikard Dahlberg on 3/23/2026

I really enjoyed taking this course, allowing me to widen my understanding of programming and the depth of C#, .Net, Linq, Unity, etc. Denis is also a very knowledge teacher who goes out of his way to put things into practice.

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