Question

What is the reason why I can’t put parenthesis after my Method name when assigning it to a delegate type.

Here is code:

public delegate Simple Simple(); //Create a delegate that returns its own type.

class Program
{
    public class Exercise
    {
        public static Simple Welcome()
        {
            Console.WriteLine("Welcome!");
            return null;

        }
    }
    static void Main(string[] args)
    {
        Simple msg;
        msg = Exercise.Welcome(); //Since Welcome returns Simple, I can execute it.

        msg();
        Console.Read();
    }
}

Answer 1

It lets the compiler distinguish a method call from a reference to a method group. If you add parenthesis, the compiler will call the method and uses the return value of that method call, instead of the method group itself.