505: ASP.NET Mohamedsohel Shaikh - PowerPoint Presentation

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505: ASP.NET

Mohamedsohel Shaikh

.NET Framework

Framework?

.NET

.NET Framework(Conti.)

.NET Framework is managed & type- safe environment for building, developing, deploying and executing Windows, Web & Web Service applications.

Allocation of memory for the storage of data and instructions,

granting and denying permissions to the application

Managing execution of the application

Reallocation of memory for resources that are not needed

.NET Framework(Conti.)

Block Diagram of .NET Framework

.NET Framework(Conti.)

1) CLR(Common Language Runtime

->It is the heart of .NET Framework

->It is a common runtime for all languages targeting the .NET platform.

->It is the engine that compile & run the application

->It uses MSIL(Microsoft Intermediate Language) format code which is language independent for execution. MSIL code is translated by JIT compiler

->It provide core services like memory management & thread management & remoting at runtime

.NET Framework(Conti.)

VB

C++

C#

COBOL

MSIL

CLR

Native Code

CLR Role at runtime

.NET Framework(Conti.)

2) BCL(Base Class Library)

It is designed to integrate with CLR

Also known as Framework Class Library(FCL)

It is a library available to all language using .NET

It provide classes which encapsulate a number of common function including file reading & writing, graphic rendering, database interaction & XML document manipulation

The main areas such as Data Structure, IO mgmt., Windows & Web Controls, Database access, Multithreading, Remoting & Reflections covered by Class Library

.NET Framework(Conti.)

3) ADO.NET and XML

Also known as Data Access Layer

We can access relational databases

Work with XML and provide Disconnected Data Model

Used to access data and data services

Consist of 2 Parts:

i

)

Data Provider

Connection, Parameter, Data Adapter, Data Reader

ii) Data Set

.NET Framework(Conti.)

4) Windows Forms

Also known as Win Forms

Used to create GUI for windows desktop application

With Win Forms, make single UI & use it VC++, VB and C#. Using Visual Studio.NET, design GUI by dragging the controls on a form as it uses “

System.WinForms

” namespace to draw GUI

.NET Framework(Conti.)

5) Web Forms & Web Services

Web Forms provide a tool for web application

Part of ASP.NET

Forms engine that provides browser – based user interface

It consist of 2 Parts:

1)Template (Presentation layer)

2)Component (Application logic layer)

Build WUI

.NET Framework(Conti.)

5) Web Forms & Web Services(Conti.)

Application that run on Web Server & Communicate with other applications

Uses series of XML based communication protocols

Small unit of code to handle limited set of task

OS &

Prog.ing

lang. independent

Connect people, system & devices

E.g. Flight schedules & ticket reservation system

.NET Framework(Conti.)

6) Common Language Specification

Set of rules & constraints that all languages must follow

Support .NET Theme i.e. unification & interoperability

Common Language Runtime

Managed Code

-target CLR

Unmanaged Code

-without considering CLR

Common Language Runtime(Conti..)

Purpose/Role of CLR

Class Loader

Code Manager

Garbage Collection

MSIL to Native Compilers

Debugger

Security Engine

Exception Manager

Type Checker

Thread Support

COM

Marshaller

Class Library Support

Features / Advantages / What is ASP.NET

• Upgraded version of classical ASP (Active Server Pages).

• Server side technology and a part of Microsoft’s .NET framework.

• It provides services that allow the creation, deployment & execution of web application on the server.

• Build powerful web application using the Common Language Runtime (CLR).

• ASP.NET runs inside the IIS (Internet Information Server) which is the Microsoft’s internet server freely available with windows.

• ASP.NET comes with built-in web forms controls which are responsible for generating the user interface and are same as the HTML controls.

• An ASP.NET application will have all code files, pages, handles, modules and executable code that can be invoked or run in a given virtual directory on web server.

• Each ASP.NET application is executed within a .NET framework domain which guaranties class isolation, security sandboxing and static variable isolation.

Advantages of ASP.NET

Separation of code from HTML

Support for compiled languages

Use services provided by the .NET framework

Graphical development environment

State Management

Update files while the server is running

XML based configuration file

Client Side Scripting & Server Side Scripting