Introduction to delegates

A delegate is a type-safe object that can point to another method (or possibly multiple methods) in the application, which can be invoked at later time.

Delegates also can invoke methods Asynchronously.

A delegate type maintains three important pices of information :

1. The name of the method on which it make calls.
   
2. Any argument (if any) of this method.
   
3. The return value (if any) of this method.

Defining a Delegate in C#

when you want to create a delegate in C# you make use of delegate keyword.

The name of your delegate can be whatever you desire. However, you must define the delegate to match the signature of the method it will point to. fo example the following delegate can point to any method taking two integers and returning an integer.

public delegate int DelegateName(int x, int y);

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