Demonstrates adding multiple methods to a delegate


/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/
 
// MultiDlg.cs -- Demonstrates adding multiple methods to a delegate.
//
//                Compile this program with the following command line
//                    C:>csc MultiDlg.cs
using System;

namespace nsDelegates
{
    public class MultiDlg
    {
        public delegate void MultiMethod ();

        static public void Main ()
        {
            MultiMethod dlg;
// Assign the first method to the delegate.
            dlg = new MultiMethod (FirstDelegate);
// Call it to show the first method is being called
            dlg ();
// Add a second method to the delegate.
            dlg += new MultiMethod (SecondDelegate);
// Call it to show both methods execute.
            Console.WriteLine ();
            dlg ();
// Remove the first method from the delegate.
            dlg -= new MultiMethod (FirstDelegate);
// Call it to show that only the second method executes
            Console.WriteLine ();
            dlg ();
        }
        static public void FirstDelegate()
        {
            Console.WriteLine ("First delegate called");
        }
        static public void SecondDelegate()
        {
            Console.WriteLine ("Second delegate called");
        }
    }
}

Related examples in the same category

1.	Define your own delegate
2.	Late Binding Delegates: A delegate is a repository of type-safe function pointers.
3.	illustrates the use of a delegate 2
4.	illustrates the use of a multicast delegate
5.	illustrates the use of a delegate that calls object methods
6.	Demonstrates a simple form of a delegate
7.	Demonstrates combining and removing delegates to create new delegates
8.	Demonstrate getting and printing the invocation list for a delegate
9.	Using a delegate with a container class to sort the collection and return a sorted array using different sort criteria
10.	Demonstrate using a static delegate without declaring an instance of the class
11.	A simple delegate example
12.	Delegates can refer to instance methods, too
13.	Two delegates
14.	The minimum implementation of a delegate
15.	Delegates:Using Delegates
16.	Delegates to Instance Members
17.	Delegates: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

Demonstrates adding multiple methods to a delegate : delegate « Language Basics « C# / C Sharp

Related examples in the same category