473,387 Members | 1,903 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,387 software developers and data experts.

Why use delegates?

Why use delegates?

I understand HOW to use delegates, but in what situations would you actually use them? The examples I see in the literature are all in situations where the code could just be written without ever using them.
Feb 26 '09 #1
3 7079
PRR
750 Expert 512MB
Check this and MSDN...
Feb 27 '09 #2
vekipeki
229 Expert 100+
If you can get the desired result through a static method, you have to use a delegate, because you cannot use interfaces with static methods. Delegate is represented only by a single method signature, and it doesn't care if that method is static or instance (a nice thing is also passing anonymous delegates, or Lambda expressions in C# 3.0).

On the other hand, interfaces allow you to pass an object with some encapsulated state information, which you cannot do with static methods (ok, I guess you can have static properties also, but you get the point). Interfaces also contain multiple method and property signatures, when compared to a single delegate.
Feb 27 '09 #3
In C# Console Application if u want to fire event then
u have to compulsory declare delegate bcoz delegate
is a base of any event & without delegate event is not
possible in C# console application.

I Hope your doubt is clarify...
Feb 27 '09 #4

Sign in to post your reply or Sign up for a free account.

Similar topics

6
by: Jeffrey T. Smith | last post by:
Back when the new J2SE1.5 features were announced, there was a JavaLive community chat (http://java.sun.com/developer/community/chat/JavaLive/2003/jl0729.html) in which Neal Gafter explains the...
3
by: Sam | last post by:
I’m just starting to learn delegates. I’m at the very beginning. If I understand correctly, delegates are for when you want to pass a function as a parameter. For example the client provides a...
4
by: LP | last post by:
Hello! I am still transitioning from VB.NET to C#. I undertand the basic concepts of Delegates, more so of Events and somewhat understand AsyncCallback methods. But I need some clarification on...
4
by: AMDRIT | last post by:
I am trying to understand Delegates and where/when to use them. I can see one potential use of a delegate (on form closing, set the cancel property in the event arguments.) Does anyone have a...
6
by: =?Utf-8?B?Sko=?= | last post by:
I have a logger component that logs to multiple sources, ie textfile, eventlog etc. and I have two methods that depending on where I call up my logger comp. one of them will be called. For ex. if...
0
by: bharathreddy | last post by:
Delegates Here in this article I will explain about delegates in brief. Some important points about delegates. This article is meant to only those who already know delegates, it will be a quick...
6
by: =?Utf-8?B?T2xkQ2FEb2c=?= | last post by:
My question is regarding the use of delegates in C#. I see how .Net uses delegates to wire event handlers to events. It’s an object created by a single line of code by the system and that makes...
7
by: Siegfried Heintze | last post by:
I'm studying the book "Microsoft Visual Basic.NET Language Reference" and I would like some clarify the difference between events and delegates. On page 156 I see a WinForms example of timer that...
69
by: raylopez99 | last post by:
They usually don't teach you in most textbooks I've seen that delegates can be used to call class methods from classes that are 'unaware' of the delegate, so long as the class has the same...
9
by: raylopez99 | last post by:
Hello all— I’m trying to get the below to work and cannot get the format right. It’s from this example: http://msdn.microsoft.com/en-us/library/8627sbea(VS.71).aspx What it is: I’m trying...
0
by: Charles Arthur | last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
0
by: aa123db | last post by:
Variable and constants Use var or let for variables and const fror constants. Var foo ='bar'; Let foo ='bar';const baz ='bar'; Functions function $name$ ($parameters$) { } ...
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
1
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
by: Hystou | last post by:
There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.