Events, C# - rextester

Events

//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public delegate void AddedEventHandler<T>(T item);

public class FancyCollection<T>
    {
        IList<T> data = new List<T>();
        public event AddedEventHandler<T> AddedEvent;
        
        protected virtual void OnAdded(T item) 
        {
            if (AddedEvent != null)
                AddedEvent(item);
        }

public virtual void Add(T newItem) 
        {
            data.Add(newItem);
            OnAdded(newItem);
        }   
    }   
    
        
        
    public class Program
    {
        public static void LogAddedItem<T>(T item) 
        {            
            Console.WriteLine("Something was added: {0}", item.ToString());
        }
        
        public static void LogAddedInteger(int item) 
        {            
            Console.WriteLine("Integer was added: {0}", item.ToString());
        }
        
        public static void Main(string[] args)
        {
            FancyCollection<int> collection = new FancyCollection<int>();
            collection.Add(5);
            
            collection.AddedEvent += LogAddedInteger;
            collection.Add(6);
            
            collection.AddedEvent += LogAddedItem<int>;
            collection.Add(7);
        }
    }
}


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