Understanding Delegates

So one of the topics I have been telling myself to understand a bit better is delegates, and I think tonight I understand a bit more. Firstly a delegate can be described in simple terms as a type that references a method. So for instance you would have a class with a method that you would like to maybe re-use in another class without having implement it again. In this instance you might want to use a delegate. A delegate must have the same signature as the method it references, and you use the Delegate keyword for that. I created a very basic example to illustrate its use:

    delegate string Del(string myString);
    class Program
    {
        static void Main(string[] args)
        {
            Program p = new Program();
            Del d = p.Myname;
            d += p.MySurname;

            Console.WriteLine(d("Fredrik"));
            Console.WriteLine(d("Erasmus"));
        }
        string Myname(string myString)
        {
            return myString;
        }
        string MySurname(string myString)
        {
            return myString;
        }
    }

Tags: C#, delegates