Lambda Operators

This C# program demonstrates how the lambda operator is used. A lambda expression is a method with a slightly simpler syntax.

Program.cs

using System;
using System.Collections.Generic;

namespace XoaX {
    class Program {
        public class CEvangelist {
            public string msName;
            public string msSymbol;
        }

        static void Main(string[] args) {
            List<CEvangelist> qaEvangelists = new List<CEvangelist>() {
                new CEvangelist() { msName = "Matthew", msSymbol = "Man" },
                new CEvangelist() { msName = "Mark", msSymbol = "Lion" }, 
                new CEvangelist() { msName = "Luke", msSymbol = "Ox" }, 
                new CEvangelist() { msName = "John", msSymbol = "Eagle" }
            };
            Console.WriteLine("Use a lambda expression:");
            // Find all evangelists with a symbol name of length greater than 3
            List<CEvangelist> qaFound = qaEvangelists.FindAll(e => (e.msSymbol.Length > 3));
            Console.WriteLine("Evangelists with symbol names longer than 3 characters.");
            foreach (CEvangelist qCurr in qaFound) {
                Console.WriteLine("Name = {0}, Symbol = {1}", qCurr.msName, qCurr.msSymbol);
            }
        }
    }
}

Output

Use a lambda expression:
Evangelists with symbol names longer than 3 characters.
Name = Mark, Symbol = Lion
Name = John, Symbol = Eagle
Press any key to continue . . .