.NET and .NET Framework

8/6/2019 .NET and .NET Framework

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.NETFran n

ework

ro uc on

MahrG.Mohyuddin


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.NETand.NETFr

Whatis.NET?

Whatis.NETFramewor

Whatare.NETTechnol

ApplicationPlatformson

.NETvs.JAVA

mework

?

gies?

.NET


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Whatis.NET?

AsetofMicrosoftsoftwarete information,people,systems,

Providesanabstractionte a s.

Enableshighlevelapplicatio

Adevelopmentplatform:inte developsoftware.

AThebiggestchangeinthe

WindowsNTreplacedDOS.

hnologiesforconnecting anddevices.

hnologyforalltypesof

integration.

faces,componentsandtoolsto

icrosoftplatformsince


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Whatis.NETFra

Providesthefoundation .NETbasedapplication

Consistsoftwocompon

ommon anguagerunt .NETFrameworkclassl

ework

forbuildingandrunning

nts

me brary


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CommonLangua (CLR)

Avirtualmachinecom framework.

Microsoft'simplement

LanguageInfrastructu Managesexecutionof

Supports alllanguages

eRuntime

onentof.NET

tionoftheCommon

e(CLI) thecode.

hichareCLScompliant


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.NETFramework

FCL exposesfeatureso

Provideslibraryofclass windows-basedandXM

.NETFrameworkclassli ADO.NET(ActiveXDat

ASP.NET(ActiveServe

XMLWebServices

UserInterfaces

lassLibrary

theruntime.

saccessedbyallWeb, Webserviceapplications

braryincludes: Objects)

Pages)


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Framework,Languag s,AndTools


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PrincipalDesignFe

Interoperability

CommonRuntimeEn

Lan ua eInde enden

BaseClassLibrary

SimplifiedDeployment

Security

Portability

tures

ine

ce


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HowThe.NetFra

VisualBasicApplications

.NETFr

Data

ADO.

Applications

VisualC++Applications Common

Runt

WebS

Wind

SourcecodecompilesasMSIL

eworkWorks

mework

ypes

NET

anguageime

rvices

ows

.NETPlatformCode

JITcompilerproducesmachinelanguage


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CompilingandEx ManagedCode

SourceCode

LanguageCompiler

Compilatio

J

Co

Native

Code

Execution

cuting

MicrosoftIntermediate

Language(MSIL)

IT

piler

Thefirsttimeeachmethodiscalled


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.NETTechnologie

The.NETFramework WithsupportforXML

VisualStudio.NET

SupportingVisualBasic .NETMyServices

The.NETEnterprise

BizTalkServer2000 SQLServer2000

CommerceServer2000

ebservices

.NET,C#,C++,and JScript

ervers


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ApplicationPlatfo

BrowserApps

WebServiceApps

Standar

GUIServices

TransactionServices

Sc

Operatin

RuntimeE

rmsToday

OtherApps

LocalApps

Library

ebripting

DataAccess

More

System

vironment


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The.NETFramew

BrowserApps

WebServiceApps

.NETFramewo

WindowsForms

EnterpriseServices

AS

Win

CommonLan

rk

OtherApps

LocalApps

kClassLibrary

.NET ADO.NET More

ows

uageRuntime


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TheCompetition: Environment

BrowserApps

WebServiceApps

StandardJa

Swing EnterpriseJavaBeans

Jav

Windows,Sola

JavaVirtual

heJava

OtherApps

LocalApps

vaPackages

aServerages

JDBC More

is,Linux,others

achine(VM)


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DataTypesinthe

TheCLRdefinesthe (CTS)

Alllanguagesbuiltonth

Typesaredividedinto Valuetypes:

Referencetypes:

CLR

ommonTypeSystem

CLRusetheCTS

twocategories


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Illustratingth

Object

B te

Class

Interface

Bo

Char

De

String

Array

Delegate

ReferenceTypes

Others

CTS

ValueType

Int16 Sin leUInt16

lean

imal

DoublInt32

Int64

UInt32

UInt64

ValueTypes

Enum

Structure

Others

NET d J R i


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.NETandJava :R Environments

.NETFramework Intermediatelanguageis

Providesjust-in-time(JIT

ere sno n erpre er n Java

Intermediatelanguageis

Originaldesignhadtarg

JavaVMswithJITcompil

ntime

MSIL

compilation

e

bytecode

tedinterpretationofbytecode

ationarenowalsoused

C il ti i th NET


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Compilationinth Environment

ClassX

ClassY

ClassZ

SourceCode

M

MSIL

forCl

.NET

Com iler C#

tadataforClassesX,YandZ

DLLorEXE

ode

ssX

MSILCode

forClassY

MSILCode

forClassZ

VB.NET,etc.)

Th St t f

NET


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TheStructureofa FrameworkAppli

Class

Method

ClassX

Method 1

AppDoma

Assem

JITCom

Method

MethodMethod

Method3Method 2

Loader

CommonLangu

MetadataforClass

.NET ation

ClassZ

1 Method1

n

bly

iler

4

32 Method 2

geRuntime

GarbageCollector

sX,YandZ


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Languagesin.NE

All.NETlanguagesar

Allhavemuchincomm

VisualStudio.NETsup

C# VisualBasic.NET

C++

JScript

Otherlanguageswilla

builtontheCLR

n

ports:

lsobeavailable


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AnInterfaceand

publicinterfaceICalc{intadd(intx,inty);

intsubtract(intx,i

}

publicclassCalculator:

intadd(intx,inty)

returnx+y;

}

intsubtract(intx,i

returnx y;

}

lassinC#

ty);

ICalc{

{

ty){


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A Simple Comparison :


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ASimpleCompariSimilarities

Similarities: C-derivedsyntax

Object-oriented

Singleimplementationi Multipleinterfaceinherit

Built-inimmutableStrin

son :

heritance nce

type

A Simple Comparison :


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ASimpleCompariDifferences

C#adds: Attributes

Properties

Directmemoryaccess Inunsafecode

son :


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C#

Anewlanguagedesig .NETFramework (Tha

SyntaxbasedonC/C++

BuiltontheCLR,with SupportfortheCTS:

Classes

Inheritance

Methodoverloading

edexpresslyfortheiswhatMicrosoftsays)


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VB.NET

Redesignedfromthe with:

FullsupportfortheCTS

AllotherCLRfeatures Classes

Inheritance

Methodoverloading

Itsfunctionallyverym

roundupfortheCLR,

chlikeC#


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VB.NETExample

ClassComputeImplementsIMath

FunctionFactorial(By

ClassComputeImplementsIMath

FunctionFactorial(By

IntegerImplementsIMath.

DimIAsInteg

DimResultAs

ForI=2ToFResult=R

Next

IntegerImplementsIMath.

DimIAsInteg

DimResultAs

ForI=2ToFResult=R

Next

alFAsInteger)AsalFAsInteger)As

actorial

r

nteger=1

sult*I

actorial

r

nteger=1

sult*I


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.NETFramework

Accessiblefromanyla CLR

WritteninC#

Organizedintonames Allofwhicharebelowth

Contains:

ASP.NET ADO.NET

WindowsForms

lassLibrary

nguagetargetingthe

aces eSystemnamespace

A Small Part of th System


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ASmallPartofth Namespace

System

Int32,

Data WindowsWeb,

Connection,DataSet,

UI Services Forms

System

XML EnterpriseServices

XmlDocument,

ServicedComponent,

NET vs Java : St ndard


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.NETvs.Java :St Libraries

.NETFrameworkclas DefinedbyMicrosoft

SomewhatWindows-ori

Organizedintoahierarc J2EE

DefinedbySunandthe

Notboundtoanyoperat

Definedaspackagesan

ndard

library

nted

hyofnamespaces

JavaCommunityProcess

ingsystem

dinterfaces

J2EE and NET Architectures


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J2EEand.NETArchit ectures


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Summary

NETFrameworkconsists .NETissetoftechnologie

allthesetechnologies.

CLRensuresadherencet

JITcompilerconvertsILin CLRmanagessecurity,th .NETisthefutureofapplic

Windows

fCLRandtheFCL ,.NETFrameworkiscoreof

theCLS

assemblytonativecode. eads,GC ationdevelopmenton

.NET and .NET Framework

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