Method syntax

Context: Method syntax uses extension methods like Where, Select, OrderBy with lambda expressions. It is more flexible and works with all operators.

Basic structure

var result = source.Where(item => condition).Select(item => expression);

Example

var fruits = new[] { "apple", "banana", "cherry", "date" };
var longNames = fruits.Where(f => f.Length > 5)
                      .Select(f => f.ToUpper());

Chaining multiple operators

var result = numbers.Where(n => n > 2)
                    .OrderBy(n => n)
                    .Select(n => n * 2);

Real-world usage example

Data transformation pipelines: Method syntax is preferred in functional programming pipelines (e.g., ETL processes).

Example: In ASP.NET Core, method syntax is used extensively with IQueryable for database queries.

Related sections

• 8.1 Query syntax vs method syntax
• 8.1.1 Query syntax