Two delegates : delegate « Language Basics « C# / C Sharp






  1. C# / C Sharp
  2. Language Basics
  3. delegate

Two delegates

/*
 * C# Programmers Pocket Consultant
 * Author: Gregory S. MacBeth
 * Email: gmacbeth@comporium.net
 * Create Date: June 27, 2003
 * Last Modified Date:
 */
using System;

namespace Client.Chapter_8___Delegates_and_Events
{
  public class DelegatesChapter_8___Delegates_and_Events
  {
    delegate int MyDelegate(string s);
    static void Main(string[] args)
    {
      MyDelegate Del1 = new MyDelegate(DoSomething);
      MyDelegate Del2 = new MyDelegate(DoSomething2);
      string MyString = "Hello World";

      Del1(MyString);
      Del2(MyString);

      //Or you can Multicast delegates by doing this
      MyDelegate Multicast = null;

      Multicast += new MyDelegate(DoSomething);
      Multicast += new MyDelegate(DoSomething2);

      //Both DoSomething & DoSomething2 will be fired
      //in the order they are added to the delegate
      Multicast(MyString);
      Multicast -= new MyDelegate(DoSomething2);
    }
    static int DoSomething(string s)
    {
      return 0;
    }
    static int DoSomething2(string s)
    {
      return 0;
    }
  }
}








Related examples in the same category

1.Define your own delegateDefine your own delegate
2.Late Binding Delegates: A delegate is a repository of type-safe function pointers.
3.illustrates the use of a delegate 2illustrates the use of a delegate 2
4.illustrates the use of a multicast delegateillustrates the use of a multicast delegate
5.illustrates the use of a delegate that calls object methodsillustrates the use of a delegate that calls object methods
6.Demonstrates a simple form of a delegateDemonstrates a simple form of a delegate
7.Demonstrates combining and removing delegates to create new delegatesDemonstrates combining and removing delegates to create new delegates
8.Demonstrate getting and printing the invocation list for a delegateDemonstrate getting and printing the invocation list for a delegate
9.Demonstrates adding multiple methods to a delegateDemonstrates adding multiple methods to a delegate
10.Using a delegate with a container class to sort the collection and return a sorted array using different sort criteriaUsing a delegate with a container class to sort the collection and return a sorted array using different sort criteria
11.Demonstrate using a static delegate without declaring an instance of the classDemonstrate using a static delegate without declaring an instance of the class
12.A simple delegate exampleA simple delegate example
13.Delegates can refer to instance methods, tooDelegates can refer to instance methods, too
14.The minimum implementation of a delegateThe minimum implementation of a delegate
15.Delegates:Using Delegates
16.Delegates to Instance MembersDelegates to Instance Members
17.Delegates:MulticastingDelegates:Multicasting
18.Arrays of Delegates
19.To remove delegates from a multicast delegate, use the Remove method, the minus operator (-), or the -= assignment operator.
20.the syntax of the GetInvocationList method: delegate [] GetInvocationList()
21.The publisher/subscriber relationship is a one-to-many relationship.
22.Lifetime of outer variables is aligned with the delegate
23.Combining delegates Multiple delegates are combined using the Combine method, the plus operator (+), or the += assignment operator.
24.CreateDelegate and DynamicInvoke