LINQ in C# Training in Kraków, Poland

LINQ in C# training teaches professionals how to leverage Language Integrated Query (LINQ) to efficiently query and manipulate data from various sources like arrays, collections, databases, and XML. The course covers the fundamentals of LINQ syntax, including methods like Where, Select, OrderBy, and GroupBy for querying data in a concise and readable manner. Participants also learn how to work with LINQ to SQL and Entity Framework to interact with relational databases using LINQ queries. Advanced topics such as deferred execution, custom LINQ providers, and performance optimization techniques are also covered. By completing LINQ in C# training, professionals gain the expertise to write clean, efficient, and maintainable data queries in C# applications.

Introduction to LINQ and Basic Querying

• Introduction to LINQ in C#:

• What is LINQ?

• LINQ syntax and structure.

• LINQ providers: LINQ to Objects, LINQ to SQL, LINQ to XML.

• Overview of common LINQ operators.

• Hands-on Exercise

• LINQ Query Syntax vs. Method Syntax:

• Understanding the differences between query syntax and method syntax.

• Choosing the right syntax for different scenarios.

• Hands-on Exercise

• Filtering Data with LINQ:

• Using the Where operator to filter data based on conditions.

• Combining multiple filters using logical operators.

• Hands-on Exercise

• Sorting and Ordering with LINQ:

• Sorting data using OrderBy, OrderByDescending, and ThenBy operators.

• Handling complex sorting scenarios.

• Hands-on Exercise

Advanced LINQ Operations and Performance Considerations

• Grouping Data in LINQ:

• Using GroupBy operator to group data by specific properties.

• Aggregating grouped data with Count, Sum, Average, Min, and Max.

• Hands-on Exercise

• Joining Data in LINQ:

• Understanding different types of joins in LINQ: inner join, left join, and cross join.

• Using Join, GroupJoin, and DefaultIfEmpty for various join operations.

• Hands-on Exercise

• Using LINQ with Collections and Arrays:

• Querying arrays and collections of objects with LINQ.

• Transforming and projecting data using Select.

• Hands-on Exercise

• Advanced LINQ Features:

• Using SelectMany for flattening collections.

• Understanding deferred execution and its impact on performance.

• Handling complex data transformations using LINQ.

• Hands-on Exercise

• LINQ Performance Best Practices:

• Optimizing LINQ queries for performance (e.g., avoiding multiple enumerations).

• Understanding the difference between deferred and immediate execution.

• Best practices for using LINQ efficiently in large-scale applications.

• Hands-on Exercise