Why delegates need in C# for invoking method

Question

1.00/5 (1 vote)

See more:

c# has two types of members--static and instance members
For invoking static members using name of the class
For invoking instance members using instance of the class
but why do u need delegates in c# for invoking members

please help me.

thank u

What I have tried:

For invoking static members using name of the class
For invoking instance members using instance of the class
but why do u need delegates in c# for invoking members

Posted 15-Nov-17 6:00am

Krishna Veni

Updated 15-Nov-17 20:51pm

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2017-11-15T06:09:00

Delegates are effectively "pointers to functions" - so they let you store a "function" in a variable and execute it at a later time.

This is used for event handlers: A button is clicked, which raises a Click event.
The system looks at the Click event handler variable, and executes the function it finds in there. (That's a horrible simplification but it'll do for now.)

This also allows you to pass a function to a method at run time, and that's very handy.
For example, you can write a method that prints a document - and pass it the function that actually prints to the screen at run time, or the function that prints to the printer, or a file, or a database, or ... all without having to change in any way the method that decides what to print where on a page - it doesn't need to know what it is printing to, it just calls the appropriate function from the delegate you passed it.

BillWoodruff · Answer 2 · 2017-11-15T20:51:00

Your question leads me to believe you need to get a more solid basis for understanding C# and .NET fundamentals. I suggest you get a good book, and study.

Here are two free books: [^], [^]

Static Types in C#, defined in a Class, can be thought of as "instances of the Class," rather than instances of members of a Class instance. Static members are inherently singleton objects: no matter how many instances of a Class are created, there will be only one of each static member.

Why delegates need in C# for invoking method

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0