Delegate.Combine

using System;

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

public class MyClass
{
public MyClass( ) {
}

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;
}

private double factor;
}

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

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

ComputeDelegate chained = (ComputeDelegate) Delegate.Combine( delegates );

double combined = chained( 4, 5 );

Console.WriteLine( "Output: {0}", combined );
}
}

Result :

InstanceResults: 9
InstanceResults: 9
StaticResult: -1
Output: -1

Track URL :http://www.java2s.com/Tutorial/CSharp/0180__delegate/DelegateCombine.htm