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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 14-30 extracted from chapter Unsafe code, exceptions, anonymous methods, iterators


Listing 14-29<     > Listing 14-31


This listing can be compiled with the command line:
csc.exe /target:exe Example_14_30.cs
Errors: 0 Warnings: 0


Example_14_30.cs
delegate void DelegateTypeCounter();
class CounterBuilder {
   string m_Name; // An instance field.
   internal CounterBuilderstring name ) { m_Name = name; }
   internal DelegateTypeCounter BuildCounter( string counterName ) {
      int counter = 0;
      DelegateTypeCounter delegateInstanceCounter = delegate {
         System.Console.Write( counterName +(++counter).ToString() );
         // We could have written this.m_Name.
         System.Console.WriteLine(" Counter built by: " + m_Name); 
      };
      return delegateInstanceCounter;
   }
}
class Program {
   static void Main() {
      CounterBuilder cBuilder1 = new CounterBuilder"Factory1" );
      CounterBuilder cBuilder2 = new CounterBuilder"Factory2" );
      DelegateTypeCounter cA = cBuilder1.BuildCounter( "Counter A:" );
      DelegateTypeCounter cB = cBuilder1.BuildCounter( "Counter B:" );
      DelegateTypeCounter cC = cBuilder2.BuildCounter( "Counter C:" );
      cA();  cA ();
      cB();  cB();
      cC();  cC();
   }
}	
Copyright Patrick Smacchia 2006 2007