Delegate : Chained delegate : Delegate C# Examples

    
using  System;

public  delegate  double  Compute(  double  x,  double  y  );

public  class  Processor
{
        public  double  Add(  double  x,  double  y  )  {
                double  result  =  x  +  y;
                Console.WriteLine(  "InstanceResults:  {0}",  result  );
                return  result;
        }

        public  static  double  Subtract(  double  x,  double  y  )  {
                double  result  =  x-y;
                Console.WriteLine(  "StaticResult:  {0}",  result  );
                return  result;
        }
}

public  class  MainClass
{
        static  void  Main()  {
                Processor  proc1  =  new  Processor(  );
                Processor  proc2  =  new  Processor(  );

                Compute[]  delegates  =  new  Compute[]  {
                        new  Compute(  proc1.Add  ),
                        new  Compute(  proc2.Add  ),
                        new  Compute(  Processor.Subtract  )
                };

                Compute  chained  =  (Compute)  Delegate.Combine(  delegates  );
                Delegate[]  chain  =  chained.GetInvocationList();
                
                
                for(  int  i  =  0;  i  <  chain.Length;  ++i  )  {
                        Compute  current  =  (Compute)  chain[i];
                        Console.WriteLine(current(  4,  5  ));
                }
                
                
        }
}