Intoduction to Asp.Net

DOT NET
AN INTRODUCTION

DIFFERNCE FROM OTHERS
• DOS programming -> programmer have to take care of things from starting to end. Little bit relaxation due to event driven programming. • Abstraction of hardware ->windows take care of communicating with hardware using windows WIN32API. • Burden of creating user interface reduced. • Active x controls and DAO/ ADO

MAIN FEATURES OF .NET
• Provides platform for windows, web and mobile applications with supporting languages. • Splits os platform into two parts:
– Programming layer – Execution layer

• Purely object oriented environment. (Framework class to access the system of .net)

NEXT GENERATION INTERNET
Web site Looselycoupled, Service services connected by XMLXML-based Web site msgs messages and contracts, Device written in many languages

Backend App
Service

Mega Service

Backend Service App
Service

Web site

Mega Service

.NET FRAMEWORK

.NET FRAMEWORK
• A framework is a set of common and prefabricated software building blocks that programmers can use, extend or customize for specific computing solutions. • NET Framework consists of 3 main parts:
– Common Language Runtime (CLR) – Common Language Specification (CLS) – Common Type Specification (CTS)

THE .NET FRAMEWORK

VB

C++

C#

JScript

…

Common Language Specification Visual Studio.NET ASP.NET: Web Services and Web Forms Windows Windows Forms Forms

ADO.NET: Data and XML Base Class Library

Common Language Runtime

COMMON LANGUAGE RUNTIME (CLR)
• A common runtime enviornment for all .NET languages – Common type system – Common metadata – Intermediate Language (IL) to native code compilers – Memory allocation and garbage collection – Code execution and security • Over 15 languages supported today – C#, VB, Jscript, Visual C++ from Microsoft – Perl, Python, Smalltalk, Cobol, Haskell, Mercury, Eiffel, Oberon, Oz, Pascal, APL, CAML, Scheme, etc.

COMMON LANGUAGE RUNTIME (CLR)
• Enables