What are some examples of filtering with LINQ in C#?

What are some examples of filtering with LINQ in C#?

LINQ (Language Integrated Query) allows you to filter collections easily. For example, you can filter a list of integers to get only even numbers.

Can you show me a code example for that?

Sure! Here's a simple example:

List<int> numbers = new List<int> { 1, 2, 3, 4, 5, 6 };
var evenNumbers = numbers.Where(n => n % 2 == 0);

This will give you a collection of even numbers: 2, 4, 6.

What if I want to filter a list of objects instead?

You can filter a list of objects using a similar approach. For instance, if you have a list of Person objects and want to filter by age:

List<Person> people = new List<Person> { new Person { Age = 20 }, new Person { Age = 30 } };
var adults = people.Where(p => p.Age >= 18);

That's helpful! Can you explain how to use multiple conditions in filtering?

Absolutely! You can combine conditions using logical operators. For example:

var filtered = people.Where(p => p.Age >= 18 && p.Name.StartsWith("A"));

This filters for adults whose names start with 'A'.