.NET

LINQ Tutorial

LINQ tutorial covering query syntax, method syntax, IEnumerable vs IQueryable, grouping, joins, and EF integration.

9 lessons 9 views All Levels Free
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LINQ Tutorial tutorial

Course contents

LINQ Fundamentals

1 Introduction to LINQ 5 min 2 Query Syntax vs Method Syntax 5 min 3 Filtering, Sorting, and Projection 5 min 4 Aggregation: Sum, Count, Average 5 min 5 GroupBy and Join Operations 5 min

LINQ in Practice

6 LINQ with Entity Framework Core 5 min 7 Deferred Execution Explained 5 min 8 Common LINQ Mistakes 5 min 9 LINQ Interview Questions 5 min

How this course is organized

  • Each lesson includes overview, steps, code, and interview tips
  • Use the sidebar on lesson pages to navigate
  • Content is original to Toolliyo—not copied from other sites
Begin first lesson Interview Q&A

Course quizzes

SOLID Design Principles — Practice Quiz SignalR Real-Time — Practice Quiz Microservices with .NET — Practice Quiz

Test your knowledge

Quizzes linked to this course—pass to earn certificates.

SOLID Design Principles — Practice Quiz
Test your understanding of SOLID Design Principles Tutorial. Single responsibility, open/c…
Intermediate 15 min
SignalR Real-Time — Practice Quiz
Test your understanding of SignalR Real-Time Tutorial. WebSockets, hubs, and live updates …
Intermediate 15 min
Microservices with .NET — Practice Quiz
Test your understanding of Microservices with .NET. Distributed systems, APIs, messaging, …
Intermediate 15 min
LINQ — Practice Quiz
Test your understanding of LINQ Tutorial. Query in-memory and database data with fluent LI…
Intermediate 15 min Course quiz
Entity Framework Core — Practice Quiz
Test your understanding of Entity Framework Core Tutorial. Modern ORM: Code First, migrati…
Intermediate 15 min
Design Patterns in C# — Practice Quiz
Test your understanding of Design Patterns in C#. Creational, structural, and behavioral p…
Intermediate 15 min
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