Retrieving Even-Numbered Events : Delegate event : Delegate C# Examples

    
using  System;
      
public  delegate  void  EvenNumberHandler(int  Number);
      
class  Counter
{
        public  event  EvenNumberHandler  OnEvenNumber;
      
        public  Counter()
        {
                OnEvenNumber  =  null;
        }
      
        public  void  CountTo100()
        {
                int  CurrentNumber;
      
                for(CurrentNumber  =  0;  CurrentNumber  <=  100;  CurrentNumber++)
                {
                        if(CurrentNumber  %  2  ==  0)
                        {
                                if(OnEvenNumber  !=  null)
                                {
                                        OnEvenNumber(CurrentNumber);
                                }
                        }
                }
        }
}
      
class  EvenNumberHandlerClass
{
        public  void  EvenNumberFound(int  EvenNumber)
        {
                Console.WriteLine(EvenNumber);
        }
}
      
class  MainClass
{
        public  static  void  Main()
        {
                Counter  MyCounter  =  new  Counter();
                EvenNumberHandlerClass  MyEvenNumberHandlerClass  =  new  EvenNumberHandlerClass();
                MyCounter.OnEvenNumber  +=  new  EvenNumberHandler(MyEvenNumberHandlerClass.EvenNumberFound);
                MyCounter.CountTo100();
        }
}