lecture_3 (what is .net technology)

8/7/2019 Lecture_3 (What is .Net Technology)

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Visual ProgrammingUsing .Net

By

Adnan AminLecturer / Software Programmer

Ministry of education



What is .NET? .NET is a platform that provides a

standardized set of services.

It’s just like Windows, except distributed over the Internet.

It exports a common interface so that it’s

programs can be run on any system that supports .NET.

A specific software framework Includes a common runtime



.Net Framework? Programming model for .NET

Platform for running .NET managedcode in a virtual machine

Provides a very good environment todevelop networked applications andWeb Services

Provides programming API andunified language-independent

development framework.



.NET is multi-language

.NET supports VB, C# (C-sharp), C++, J# (Java 1.2), Eiffel,

etc.

FCL

app.exe

...

code.cpp

code.vb

Development Tool

code.cs



.NET is cross-platform

Compiled .NET apps run on any supportedplatform:

APP.exe

? Win64 Win32

(XP,2K,98)WinCE



Core Components of .Net Framework.

Microsoft .NET is based on the .NET Framework,

which consists of two major components:

1. The Common Language Runtime (CLR)

2. Framework Class Libraries (FCL)



Garbage collection

Language integration

Multiple versioning support(no more DLL hell!)

Integrated security

Core Components of .Net Framework.

.Net FrameworkComponents

CLRComman Language Runtime

FCLFramework Class Library

Provides the core functionality

ASP.NET,Web Services,ADO.NET,Windows Forms,IO, XML, etc.



.NET Framework

Operating System

Common Language Runtime

CLR manages code execution at runtime is anenvironment that manages the execution of

program.

Services of CLR Integrating Component develop in different program

Handling Error across languages Handling Security

Managing the storage and destruction of objects




Operating System


.NET Framework (Base Class Library FCL)

Object-oriented collection of reusable types.

All of the classes and interfaces that are a part of the .Netlanguage are stored in a library known as the .Net

Framework class library. The library is divided into sections or groups knows as

namespaces.

Some of the namespaces( classes, structure, interfaces)

System System.Drawing

.NET Framework

Framework Class Library (FCL)



.NET Framework Data Access Layer

Operating System


.NET Framework (Base Class Library)

ADO .NET and XML

Access relational databases

Disconnected data model

Work with XML



.NET Framework ASP.NET & Windows Forms

Operating System



ADO .NET and XML

ASP .NET

Web Forms Web Services Mobile Internet Toolkit

Windows

Forms

Create application’s front-end –

Web-based user interface,Windows GUI, Web services, …



.NET Framework Programming Languages

Operating System



ADO .NET and XML

ASP .NET


Windows

Forms

C++ C# VB.NET Perl J# …

Use your favorite language



.NET Framework Common Language Specification

Operating System



ADO .NET and XML

ASP .NET


Windows

Forms

Common Language SpecificationC++ C# VB Perl J# …



.NET Framework Visual Studio .NET

Operating System



ADO .NET and XML

ASP .NET


Windows

Forms

Common Language Specification

C++ C# VB Perl J# …

V i su

al S t ud i o .N

E T



Assignment # 1

Summarize and write the maximum

advantages of using .NET technology inyour own words.



References

You can download lectures’ notes

www.geoamins.com msdn.microsoft.com/netframework

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