Linq-Ex.cs

// Data Source
List<int> intList = new List<int>
{
    0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
};

// Query 
var Query = from x in intList // Data Source
                         where x > 5 // Condition
                                 select x; // Selection
// result
foreach (var item in Query)
{
    Console.WriteLine($"{item}");
}