Delegates and events -Don't Read it For Interview Purpose Only

Why Delegate came in the .net  oops World ?[Not only delegates including u  and me ]

                               Normally Functions We called in OOPS by object of the class .So each time  Function stack Will create when we execute the function . So  memory will be wasting here. To Resolve this problem ,delegate came actually .

                                Delegate is  a function pointer ,it creates function stack and execute the function  on a same memory location ((number of times you called also) .So no seperate memory allocation is Required  to each and every time to call a function .

 

What is the use of  Delegate in oops World ?[Not only delegates including u and me]

                               Delegate can take function as an Argument .

                               For handling events delegate is used
                                                          
                                        Calling a method in C# asynchronously using delegates.

                                     That is, through a delegate, you can begin invocation of a method and then return
  immediately while the delegate executes its method in a separate thread. Your page execution does not need
  to wait for that method to complete.
  http://www.codeproject.com/Articles/426120/Calling-a-method-in-Csharp-asynchronously-using-de

 

Delegates and Events[lovers -because without delegates events are not fired. Love makes Life Beautiful at the same way Delegate and events  makes application beautiful ]  :

Dalegete is a function pointer which can able to store the address of any function with same prototype.

Event is a function handler which can handles or run the functions in same prototype of its delegate.


delelgate is reference to a method.

event is way to access that method using that delegate.