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Udemy

LINQ Tutorial: Master the Key C# Library

via Udemy

Overview

Master LINQ with hands-on practice! Solve real coding challenges and gain fluency in C#'s most powerful library.

What you'll learn:
  • Master every method from the LINQ library.
  • Learn what lambda expressions are.
  • Solve 64 hands-on coding exercises directly in your browser.
  • Gain fluency in LINQ, making your code more expressive and powerful.
  • Improve code with 32 LINQ refactoring challenges.
  • Learn both query syntax and method syntax.
  • Understand how LINQ works under the hood.

Welcome to the "LINQ Tutorial: Master the Key C# Library", the only course you need to become fluent in using library essential for every C# programmer.


LINQ is a must-know for every C# developer. No matter what kind of application you build—now or in the future—you’ll always need to work with collections.

  • Sorting, filtering, transforming? LINQ makes it effortless.

  • Query in-memory collections, databases, XML files, and more—all with clean, expressive code.

  • Master LINQ once, and boost your efficiency in every project.


Curious to see LINQ in action? Watch a free lesson on one of the most commonly used LINQ methods—the Where method!


Why this course?

This isn’t just another theory-heavy course—it's practice-oriented. After each lecture, you’ll tackle:

  • 2 coding exercises to reinforce what you've learned.

  • 1 refactoring challenge where you’ll transform messy code into elegant, efficient LINQ-powered solutions.

Struggling with an exercise? No worries! Every challenge comes with a detailed article explaining the solution.


Who is this course for?

  • C# Beginners: Every concept is explained from the ground up, including lambda expressions and IEnumerable, so you’ll never feel lost.

  • Intermediate Developers: Already familiar with LINQ? This course will help you master it like a pro and understand how it works under the hood.


What will you learn?

  • 64 coding exercises + 32 refactoring challenges to solidify your LINQ expertise.

  • The two LINQ syntaxes—method and query syntax—so you can write code fluently.

  • How to think in LINQ and seamlessly integrate it into your daily coding workflow.

  • The internal mechanics of LINQ, so you not only use it—but truly understand it.


Why LINQ?

LINQ is essential for any C# developer. Employers expect it. Interviewers test it. This course will give you the confidence to ace technical interviews and write professional-grade code.


Additional perks:

  • Full Git repository with all course examples, coding exercises, and refactoring challenges—including solutions.

  • 30-day money-back guarantee—if you're not satisfied, get a full refund, no questions asked.


Join now and start writing LINQ like a pro!

Syllabus

  • Welcome!
  • Introduction to LINQ
  • Any
  • All
  • Count
  • Contains
  • OrderBy
  • MinMax
  • Average
  • Sum
  • ElementAt
  • First and Last
  • Single
  • Where
  • Take
  • Skip
  • OfType
  • Distinct
  • Prepend and Append
  • Concat and Union
  • Collection type change
  • Select
  • SelectMany
  • Generating new collections
  • Grouping
  • Intersect and Except
  • Join
  • Aggregate
  • Zip
  • Introduction to query syntax
  • OrderBy (query syntax)
  • Where (query syntax)
  • Select (query syntax)
  • SelectMany (query syntax)
  • GroupBy (query syntax)
  • Join (query syntax)
  • LINQ updates
  • Bonus!

Taught by

Krystyna Åšlusarczyk

Reviews

4.6 rating at Udemy based on 1182 ratings

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