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Introduction to ASP.NETIntroduction to ASP.NET

Presented byPresented by

Venkatesham Aithagoni.Venkatesham Aithagoni.



What We Will Cover What We Will Cover

Introduction to MicrosoftIntroduction to Microsoft ® ®

.NET.NET ““Classic” ASPClassic” ASP MicrosoftMicrosoft ® ® ASP.NETASP.NET Server controlsServer controls Data controlsData controls ASP.NET Web applicationsASP.NET Web applications Business objectsBusiness objects Web servicesWeb services Additional topicsAdditional topics



So Why This Presentation?So Why This Presentation?

ASP.NET offers many enhancements over classic ASP but…ASP.NET offers many enhancements over classic ASP but… With ASP.NET, there’s a lot new to learnWith ASP.NET, there’s a lot new to learn

Solves many ASP issuesSolves many ASP issues

RAD for the WebRAD for the Web



DemonstrationsDemonstrations

ASP vs. ASP.NETASP vs. ASP.NET Server controls walk-throughServer controls walk-through ValidationValidation Data controlsData controls Cookieless sessionsCookieless sessions

Web servicesWeb services Page cachingPage caching



AgendaAgenda

Introduction to .NETIntroduction to .NET ““Classic” ASPClassic” ASP

ASP.NETASP.NET

Server controlsServer controls

Data controlsData controls

ASP.NET Web applicationsASP.NET Web applications

Business objectsBusiness objects

Web servicesWeb services

Additional topicsAdditional topics



OSOSServicesServices

Microsoft provided COM, IIS,

Internet Explorer

Introduction to .NETIntroduction to .NET11stst GenerationGeneration

Applications largely operating

in a client / server model wereaugmented with Web browser

and servers. The industry

focused on rich OS and local

services provided by products

like SQL Server™.

BrowsersBrowsers

BrowsersBrowsers

Web app developers took

advantage of these local

services and used HTML

to “project” the UI to many

types of clients

ServersServersData, HostsData, Hosts


Cli

ent LogicClient Logic

Biz LogicBiz Logic



Combination of “stateless” Web

protocols with DNS and IP routing have

enabled mass-scale “geo-scalability”

““Stateful”Stateful”““Stateless”Stateless”

““Geo-ScalabGeo-Scalabl

RichRichClient LogicClient Logic

RichRichClient LogicClient Logic

Introduction to .NETIntroduction to .NET22ndnd GenerationGeneration




BizBizTier LogicTier LogicBizBizTier LogicTier Logic

BrowsersBrowsersBrowsersBrowsers

Separation of data andbusiness logic provide

greater scalability and

performance while

accessing enterprise

and legacy data.

COM+ Services improve reliability,

scalability and manageability. InternetExplorer provides DHTML for better

interactivity.



IntroductionIntroduction toto .NET.NETWeb Services: The Next GenerationWeb Services: The Next Generation

StandardStandardBrowsersBrowsersStandardStandardBrowsersBrowsers

SmarterSmarterClientsClientsSmarterSmarterClientsClients

SmarterSmarterDevicesDevicesSmarterSmarterDevicesDevices Open Internet Open Internet

Communications ProtocolsCommunications Protocols(HTTP, SMTP, XML, SOAP)(HTTP, SMTP, XML, SOAP)

Richer, MoreRicher, Moreroductive User roductive User ExperienceExperience

Applications Applications

LeverageLeverageGlobally-Globally-

Applications Become Applications BecomeProgrammable Web ServicesProgrammable Web Services


BizBizTier LogicTier Logic

BizBizTier LogicTier LogicBiz LogicBiz Logic& Web& Web

ServiceService



Public WebPublic WebServicesServices

Building Block Building Block

ServicesServices

InternalInternalServicesServices

X M L

X M L

X M L X M L

X M LX M L



X M L X M L

OtherOtherServicesServices

X M L X M L

X M LX M L

X M L X M L

H T M L

H T M L



Internet ProtocolsInternet Protocols

SOAP “blue book”SOAP “blue book”

HTTP, SMTP, XMLHTTP, SMTP, XML

Introduction to .NETIntroduction to .NETThe .Net PlatformThe .Net Platform

.NET.NETFramewoFramewo

rk rk

.NET.NETFramewoFramewo

rk rk

WindowsWindows®® CE, 2000, XP,CE, 2000, XP,

.NET.NET

WindowsWindows®® CE, 2000, XP,CE, 2000, XP,

.NET.NET

O p e r

a t i

O p e r

a t i

o n s

o n s

O p e r

a t i

O p e r

a t i

o n s

o n s

OrchestratioOrchestratio

nn

OrchestratioOrchestratio

nn

ApplicationsApplicationsUsing YourUsing Your

ServiceService

ApplicationsApplicationsUsing YourUsing Your

ServiceService

End-UserEnd-UserClientsClients

End-UserEnd-UserClientsClients

.NET Enterprise.NET EnterpriseServersServers

.NET Enterprise.NET EnterpriseServersServers

.NET.NET

FoundationFoundationServicesServices

.NET.NET

FoundationFoundationServicesServices

33rdrd Party Web ServiceParty Web Service33rdrd Party Web ServiceParty Web Service

Your Internal Your InternalServicesServices

Your Internal Your InternalServicesServices

VisualVisualStudioStudio®® ..

NETNET

VisualVisualStudioStudio®® ..

NETNET

Your Application Your Applicationand Web Serviceand Web Service

Your Application Your Applicationand Web Serviceand Web Service



Introduction to .NETIntroduction to .NETThe .NET Framework and Visual Studio .NETThe .NET Framework and Visual Studio .NET

Base Class LibraryBase Class Library

Common Language SpecificationCommon Language Specification

Common Language RuntimeCommon Language Runtime

ADO.NET: Data and XMLADO.NET: Data and XML

Visual BasicVisual Basic ® C++C++ C#C#

V i s u al S t u d i o

.NE T

V i s u al S t u d i o

.NE T

ASP.NET: Web ServicesASP.NET: Web Services

and Web Formsand Web Forms

JScriptJScript ® ……

WindowsWindows

FormsForms



AgendaAgenda

Introduction to .NETIntroduction to .NET ASP todayASP today

ASP.NETASP.NET









““Classic” ASPClassic” ASPSuccessesSuccesses

Simple procedural programming modelSimple procedural programming model

Access to COM ObjectsAccess to COM Objects

ADOADO

File system objectFile system object

No compiling, just saveNo compiling, just save

Support for multiple scripting languagesSupport for multiple scripting languages

Mix HTML and codeMix HTML and code

VBscript – leverage Visual Basic skillsVBscript – leverage Visual Basic skills



““Classic” ASPClassic” ASPChallengesChallenges

Code readabilityCode readability

Coding overheadCoding overhead

PostBack complexityPostBack complexity

ReuseReuse

PerformancePerformance

DLL lockingDLL locking

DeploymentDeployment

SessionsSessions

CachingCaching



““Classic” ASPClassic” ASPChallengesChallenges

Code readabilityCode readability

Coding overheadCoding overhead

PostBack complexityPostBack complexity

ReuseReuse

PerformancePerformance

DLL lockingDLL locking

DeploymentDeployment

SessionsSessions

CachingCaching



AgendaAgenda


ASP.NETASP.NET









ASP.NETASP.NETArchitectureArchitecture

ASPX

.ASPX.ASPX




.ASPX.ASPXCompiledCompiled




.ASPX.ASPXCompiledCompiled




.ASPX.ASPXCompiledCompiled .ASPX.ASPXCompiledCompiled



Visual BasicVisual BasicSourceSource

codecodeCompiler Compiler

C++C++C#C#

Compiler Compiler Compiler Compiler

AssemblyAssemblyIL CodeIL Code



Operating System ServicesOperating System Services

Common Language RuntimeCommon Language Runtime

JIT Compiler JIT Compiler

Native CodeNative Code

ManagedManagedcodecode

UnmanagedUnmanaged

ComponentComponent

ASP.NETASP.NETExecution ModelExecution Model



ASP.NETASP.NETFeaturesFeatures

ASPX, ASP – side by sideASPX, ASP – side by side

Simplified programming modelSimplified programming model

Simplified deploymentSimplified deployment

Better performanceBetter performance CachingCaching

SecuritySecurity

Powerful controlsPowerful controls




Simplified browser supportSimplified browser support

Simplified form validationSimplified form validation

Code behind pagesCode behind pages

More powerful data accessMore powerful data access Web servicesWeb services

Better session managementBetter session management




No DLL lockingNo DLL locking

No DLL registrationNo DLL registration

Simplified configurationSimplified configuration

PageletsPagelets



AgendaAgenda


ASP.NETASP.NET









Server ControlsServer ControlsSimplify Common TasksSimplify Common Tasks

Simplify common tasksSimplify common tasks FormsForms

TablesTables

Data displayData display

Calendar Calendar Ad rotator Ad rotator

Server-side programming modelServer-side programming model

Automatic browser compatibilityAutomatic browser compatibility

Less code, less complexityLess code, less complexity

ExtensibleExtensible



Server ControlsServer ControlsBrowser SupportBrowser Support

Targets client on the flyTargets client on the fly

<asp:textbox ForeColor=“red”/><asp:textbox ForeColor=“red”/>

StyleStyle

FontFont

ValidationValidation

Client-sideClient-side

Server-sideServer-side



Server ControlsServer ControlsValidationValidation

Without codeWithout code

Required fieldRequired field

Within rangeWithin range

Two fields equal (password)Two fields equal (password) Regular expressionsRegular expressions

Validation error messagesValidation error messages

With code, but simplifiedWith code, but simplified

Custom validationCustom validation



AgendaAgenda


ASP.NETASP.NET









Data ControlsData Controls

Bind to many data sourcesBind to many data sources CollectionsCollections

ArrayArray

HashTableHashTable

ADO.NETADO.NET

DataReader DataReader

DataSetDataSet

XMLXML





Data ControlsData ControlsADO.NETADO.NET

AuthorsAuthorsAuthorsAuthorsConnectionConnection

DatabaseDatabase

DataAdapter DataAdapter

DataSetDataSet

Select … from AuthorsSelect … from Authors

AuthorsAuthors



Data ControlsData ControlsADO.NETADO.NET

PublishersPublishersPublishersPublishersConnectionConnection

DatabaseDatabase

DataAdapter DataAdapter

DataSetDataSet

Select … fromSelect … from

PublishersPublishers

AuthorsAuthors

PublishersPublishers





AgendaAgenda


ASP.NETASP.NET









ASP.NET Web ApplicationsASP.NET Web Applications

Global ASAXGlobal ASAX Application_StartApplication_Start

Application_EndApplication_End

Session_StartSession_Start

Session_EndSession_End

SessionSession

ApplicationApplication



ASP.NET Web ApplicationsASP.NET Web Applicationsweb.configweb.config

Site configuration fileSite configuration file

XML formatXML format

Some settingsSome settings

SecuritySecurity

SessionSession LocalizationLocalization

TracingTracing

DebuggingDebugging



ASP.NET Web ApplicationsASP.NET Web ApplicationsSession VariablesSession Variables

Store state informationStore state information

No longer require cookiesNo longer require cookies

Share between serversShare between servers

<sessionState<sessionState

mode=“StateServer“mode=“StateServer“

stateConnectionString="tcpip=127.0.0.1:42424"stateConnectionString="tcpip=127.0.0.1:42424"

sqlConnectionString="data source=127.0.0.1;usersqlConnectionString="data source=127.0.0.1;userid=sa;password="id=sa;password="

cookieless="false"cookieless="false"

timeout="20"timeout="20"

/>/>



AgendaAgenda


ASP.NETASP.NET









Business ObjectsBusiness Objects

Problems with ASP and DLLsProblems with ASP and DLLs DLLs with .NETDLLs with .NET



Business ObjectsBusiness Objects Problems with ASP and DLLsProblems with ASP and DLLs

DLL LockingDLL Locking

Page hitPage hit

Shutdown Web applicationShutdown Web application

Shutdown Internet Information Server Shutdown Internet Information Server Edit in Visual InterdevEdit in Visual Interdev

MTS/COM+MTS/COM+

Shutdown packageShutdown package

Binary compatibilityBinary compatibility

RegistryRegistry



Business ObjectsBusiness ObjectsDLLs with .NETDLLs with .NET

Not registeredNot registered

Placed in ./bin directoryPlaced in ./bin directory

Not lockedNot locked

Shadow copyShadow copy



AgendaAgenda


ASP.NETASP.NET









Web ServicesWeb ServicesWhat Are Web Services?What Are Web Services?

Allow applications to communicate across the InternetAllow applications to communicate across the Internet

Platform independentPlatform independent

Protocol independentProtocol independent

Synchronous/asynchronousSynchronous/asynchronous Stateful/statelessStateful/stateless

ASP.NETASP.NET



Web ServicesWeb Services

.ASMX.ASMX.ASMX.ASMX

Class CoursewareWebMethod

GetPrice

Purchase

Class CoursewareWebMethod

GetPricePurchase





TestingTesting

Courseware.asmxCourseware.asmx

Test HTML PageTest HTML Page





Courseware.asmx?WSDLCourseware.asmx?WSDL

Service Definition(XML)Service Definition(XML)

ProxyProxy

DLLDLL

ProxyProxy

DLLDLL

WSDLWSDL




.ASMX.ASMX.ASMX.ASMXProxyProxy

DLLDLL

ProxyProxy

DLLDLL

Register for CourseRegister for Course Purchase CoursewarePurchase Courseware



AgendaAgenda


ASP.NETASP.NET









Additional TopicsAdditional Topics

DeploymentDeployment ScalabilityScalability

CachingCaching

Authentication and authorizationAuthentication and authorization

AvailabilityAvailability



Additional TopicsAdditional TopicsDeploymentDeployment

CopyCopy

Components in .\binComponents in .\bin

No registering DLLsNo registering DLLs

No locked DLLsNo locked DLLs Apps are isolatedApps are isolated

Each app can have its own versionEach app can have its own version

UninstallUninstall

DeleteDelete



Additional TopicsAdditional TopicsScalability ImprovementsScalability Improvements

ASP.NET pages are compliedASP.NET pages are complied

State shared across machinesState shared across machines

Managed providersManaged providers

Disconnected data accessDisconnected data access CachingCaching

Additi l T iAdditi l T i



Additional TopicsAdditional TopicsCachingCaching

Page output cachingPage output caching

<%@ OutputCache Duration="60"<%@ OutputCache Duration="60" VaryByParam="none"VaryByParam="none" %>%>

Page data cachingPage data caching

Cache[“MyDataSet”] = SomeDataSetCache[“MyDataSet”] = SomeDataSet

Like application variablesLike application variables

ScavengingScavenging

ExpirationExpiration DependenciesDependencies

Additi l T iAdditi l T i



Additional TopicsAdditional TopicsAuthenticationAuthentication

Supports basic, digest, cookie, and Windows authentication,Supports basic, digest, cookie, and Windows authentication,PassportPassport

Form-based authenticationForm-based authentication

Users or rolesUsers or roles

One API for user infoOne API for user info

S i SSession Summary



Session SummarySession Summary

ASP.NET offers many enhancementsASP.NET offers many enhancements Improved session stateImproved session state

Improved programming modelImproved programming model

ValidatorsValidators

CachingCaching

In-place updating of sitesIn-place updating of sites

The list goes on…The list goes on…



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