linq select query simple

Select - Simple 1

static void Select_1_Simple()
        {
            int[] numbers = { 2, 3, 1, 4, 7, 8, 6, 5, 0, 9 };

            var numsPlusOne =
                from n in numbers
                select n + 1;

            Console.WriteLine("Numbers + 1:");
            foreach (var i in numsPlusOne)
            {
                Console.WriteLine(i);
            }
            Console.ReadKey(true);
        }

Output


Select - Simple 2

static void Select_2_Simple()
        {
            List<Customer> customer = new List<Customer>()
            {
                new Customer{ ID=1,Name="Bhaumik",Status=true},
                new Customer{ ID=2,Name="Hardik",Status=true},
                new Customer{ ID=3,Name="Rachit",Status=false},
                new Customer{ ID=4,Name="Darshan",Status=true},
                new Customer{ ID=5,Name="Manan",Status=false},
                new Customer{ ID=6,Name="Malay",Status=true},
                new Customer{ ID=7,Name="Vishal",Status=false},
                new Customer{ ID=8,Name="Raj",Status=true},
                new Customer{ ID=9,Name="Rohit",Status=false}
            };

            var productNames =
                from p in customer
                select p.Name;

            Console.WriteLine("Customer Names:");
            foreach (var productName in productNames)
            {
                Console.WriteLine(productName);
            }
            Console.ReadKey(true);
        }

Output


Select - Transformation

static void Select_Transformation()
        {
            int[] numbers = { 5, 4, 1, 3, 9, 8, 6, 7, 2, 0 };
            string[] strings = { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine" };

            var textNums =
                from n in numbers
                select strings[n];

            Console.WriteLine("Number strings:");
            foreach (var s in textNums)
            {
                Console.WriteLine(s);
            }
        }

Output