How can I use LINQ in C# to filter a list?

How can I use LINQ in C# to filter a list?

You can use the Where method in LINQ to filter a list. For example, if you have a list of integers and want to filter out even numbers, you can do this: var evenNumbers = numbers.Where(n => n % 2 == 0);.

Can you show me a complete example?

Sure! Here's a complete example:

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main()
    {
        List<int> numbers = new List<int> { 1, 2, 3, 4, 5, 6 };
        var evenNumbers = numbers.Where(n => n % 2 == 0);
        foreach (var num in evenNumbers)
        {
            Console.WriteLine(num);
        }
    }
}

What if I want to filter based on a condition?

You can modify the condition in the Where method. For example, to filter numbers greater than 3, use: var filteredNumbers = numbers.Where(n => n > 3);.

Is LINQ only for lists?

No, LINQ can be used with various data sources, including arrays, collections, and even databases with Entity Framework.