Handling Browser Close Event at Server Side: ASP.NET

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Reference Types and Value Types

Reference Types (String + Object): String and Objects are reference Types.



When we create an Object of a class it gets stored on Heap and a pointer/reference is set on STACK which points to object.


E.g. Class A =new Class ();


In above example Object A is created in 2 steps


1. Class A; //Reference of Object A. At this time its value is set to null


2. A=new Class (); //Now Object A is created and at the same time reference A is pointing to created Object A.


From the above example we can say when we create an object of a class then the created object get stored on HEAP and at the same time reference of that object get stored on STACK.


Value Types: All types are value types except String and Objects.


Please follow below link for detail:

http://www.codeproject.com/Articles/76153/Six-important-NET-concepts-Stack-heap-value-types

Difference b/w HttpHandler and HttpModule

http://www.codeproject.com/Articles/335968/Implementing-HTTPHandler-and-HTTPModule-in-ASP-NET