Delegates and events in c

A delegate is an object which refers to a method or you can say it is a reference type variable that can hold a reference to the methods. It provides a way which tells which method is to be called when an event is triggered. 

For example, if you click on a Button on a form (Windows Form application), the program would call a specific method.

In simple words, it is a type that represents references to methods with a particular parameter list and return type and then calls the method in a program for execution when it is needed.

Declaration of Delegates

Delegate type can be declared using the delegate keyword.

Once a delegate is declared, delegate instance will refer and call those methods whose return type and parameter-list matches with the delegate declaration.

Syntax:  

[modifier] delegate [return_type] [delegate_name] ([parameter_list]);

• modifier: It is the required modifier which defines the access of delegate and it is optional to use.
• delegate:It is the keyword which is used to define the delegate.
• return_t
  application of delegates in c