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Category: Programming
Level: Beginner to seasoned
900 pages
ISBN-10 097661322-0
ISBN-13 978-097661322-0
$59.99 USA
$79.99 CANADA


Listing 10-36 extracted from chapter The .NET 2 type system from a C#2 point of view


Listing 10-35<     > Listing 10-37


This listing can be compiled with the command line:
csc.exe /target:exe Example_10_36.cs
Errors: 0 Warnings: 0


Example_10_36.cs
using System;
public class Article {
   public int m_Price = 0;
   public Articleint price ) { m_Price = price; }
   public int IncPrice( int i ) {
      m_Price += i;
      return m_Price;
   }
}
public class Program {
   public delegate int Delegint I );
   public static void Main() {
      Article a = new Article100 );
      Article b = new Article103 );
      Article c = new Article107 );
      Deleg delegs = a.IncPrice;
      delegs += b.IncPrice;
      delegs += c.IncPrice;
      int sum = 0;
      // Get an array of several delegate objects from the delegate
      // object 'delegs'.
      Delegate[] delegArr = delegs.GetInvocationList();
      // Invoke each method referenced, one by one.
      foreach Deleg deleg in delegArr )
         sum += deleg(20);
      Console.WriteLine( "Price after increment: a:{0} b:{1} c:{2}",
                         a.m_Price , b.m_Price , c.m_Price);
      Console.WriteLine("Sum: {0}", sum );      
   }
}	
Copyright Patrick Smacchia 2006 2007