How to execute a callback method instead of an anonymous method?

The following example works, but how can I change it so that instead of executing the anonymous method, it executes my existing callback开发者_开发知识库 method OnCreateOfferComplete()?

using System;

namespace TestCallBack89393
{
    class Program
    {
        static void Main(string[] args)
        {
            OfferManager offerManager = new OfferManager();
            offerManager.CreateOffer("test", () => Console.WriteLine("finished."));

            //offerManager.CreateOffer("test", OnCreateOfferComplete ); 
            //above line gives error: an object reference is required 
            //for a non-static field...



            Console.ReadLine();

        }

        private void OnCreateOfferComplete()
        {
            Console.WriteLine("finished");
        }
    }


    public class OfferManager
    {

        public void CreateOffer(string idCode, Action onComplete)
        {
            if (onComplete != null)
                onComplete();
        }
    }
}

Make method OnCreateOfferComplete static. This should sove your problem.

Make OnCreateOfferComplete method static.

The problem is that your method OnCreateOfferComplete() needs to be static.

The problem is that you are calling CreateOffer from a static method (OnCreateOfferComplete is an instance method).

In this case, just declare your OnCreateOfferComplete method static.

I think it should be static:

private static void OnCreateOfferComplete()
{
    Console.WriteLine("finished");
}

... because you are calling it from the static Main method.