anonymous.cs

    public delegate int MathOperationDelegate(int x, int y);
    
    class Program
    {
        static void Main(string[] args)
        {
            MathOperationDelegate operationDelegate = null;
 
 
            //No need to create a seperate method
            operationDelegate += delegate(int x, int y)
            {
                return x + y;
            };
 
            operationDelegate += delegate(int x, int y)
            {
                return x - y;
            };
            operationDelegate += delegate(int x, int y)
            {
                return x * y;
            };
            operationDelegate += delegate(int x, int y)
            {
                return x / y;
            };
 
 
            //Prior to .NET 2
            //Methods have to be explicitely created, prior to the Invoke
            operationDelegate += OnAddMathOperationDelegate;
 
            operationDelegate += OnMulMathOperationAction;
 
            operationDelegate += OnDivMathOperationAction;
 
            operationDelegate += delegate(int x, int y)
            {
                return x / y;
            };
 
 
           var result = operationDelegate(12, 12);
           Console.WriteLine(  result );
        }
 
        private static int OnDivMathOperationAction(int x, int y)
        {
            return x*y;
        }
 
        private static int OnMulMathOperationAction(int x, int y)
        {
            return x - y;
        }
 
        private static int OnAddMathOperationDelegate(int x, int y)
        {
            return x + y;
        }
 
    }