What are some examples of using LINQ to filter data in C#?

Can you show me some examples of using LINQ to filter data in C#?

Sure! One common example is filtering a list of integers to get only the even numbers. Here's how you can do it:

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.

That's helpful! Can you give me another example with a list of objects?

Of course! Let's say you have a list of Person objects and you want to filter out those who are over 18:

List<Person> people = new List<Person> {
    new Person { Name = "Alice", Age = 30 },
    new Person { Name = "Bob", Age = 17 },
    new Person { Name = "Charlie", Age = 22 }
};
var adults = people.Where(p => p.Age > 18);

This will return Alice and Charlie.

Great! How can I filter based on multiple conditions?

You can combine conditions using logical operators. For example, to filter adults who are also named 'Alice':

var filteredPeople = people.Where(p => p.Age > 18 && p.Name == "Alice");

This will return only Alice if she meets both conditions.