Session Dot Net Framework Overview

8/3/2019 Session Dot Net Framework Overview

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Microsoft .NetMicrosoft .Net

TechnologyTechnology



AgendaAgenda ± ± Session 1Session 1

Evolution of the WebEvolution of the Web

.Net Framework Overview.Net Framework Overview

Evolution of .Net FrameworkEvolution of .Net Framework



Evolution of Web «Evolution of Web «



Web PhaseWeb Phase -- 11

WebWeb Browser Browser

WebWeb Server Server

HTTPHTTP

Text Information (Text File)Text Information (Text File)



Web PhaseWeb Phase -- 22

HTML + Text Information (HTMLHTML + Text Information (HTMLFile)File) ± ± Static PagesStatic Pages

Browser understands HTMLBrowser understands HTML

HTMLHTML ± ± Layout of the PageLayout of the Page

CSSCSS ± ± AppearanceAppearance

Images, Sound, LinksImages, Sound, Links



Web PhaseWeb Phase -- 33 Dynamic WebDynamic Web

Static PagesStatic Pages ± ± Contains Data (Information)Contains Data (Information) ± ± HTML FilesHTML Files

Dynamic PagesDynamic Pages ± ± Contain Code (Server Contain Code (Server--side Code)side Code) Executes when the request comes from the browser Executes when the request comes from the browser

Reads user¶s request (HTTP Request Packet that browser sendsReads user¶s request (HTTP Request Packet that browser sendsto the server)to the server)

Access Database, Filter the data, etc.Access Database, Filter the data, etc.

After generating the response (HTML Document) it stopsAfter generating the response (HTML Document) it stops

Web Server (IIS, Tomcat, etc.) handles the connectivity withWeb Server (IIS, Tomcat, etc.) handles the connectivity withthe Web Browser the Web Browser

HTTP Runtime gets connected to web server, obtains theHTTP Runtime gets connected to web server, obtains therequest from the Web Server and executes thee code.request from the Web Server and executes thee code.

Threads are used to handle multiple request.Threads are used to handle multiple request.

Maintains cache based inputs (Sliding Cache Expiration)Maintains cache based inputs (Sliding Cache Expiration)

Health MonitoringHealth Monitoring

To Store the data on User specific basis Session was used.To Store the data on User specific basis Session was used.

SecuritySecurity



HTTP REQUEST AND RESPONSE



Browser Browser

After Browser receives HTML document itAfter Browser receives HTML document itcreate HTML DOM Tree and then DOM Treecreate HTML DOM Tree and then DOM Treeto render the information. If the DOM tree isto render the information. If the DOM tree ismodified the rendering of that part in themodified the rendering of that part in the

browser window is redone.browser window is redone. Using JavaScript running in the browser theUsing JavaScript running in the browser the

DOM tree can be updated.DOM tree can be updated.

HTML DOM Tree is programmable.HTML DOM Tree is programmable.

Object of DOM can fire events on user Object of DOM can fire events on user interactions.interactions.

DOMAPI (set of functions to interact withDOMAPI (set of functions to interact withthe DOM Tree)the DOM Tree) ± ± Inconsistent AcrossInconsistent AcrossBrowser Browser



Web ProgrammingWeb Programming

Classical Web ProgrammingClassical Web Programming Every Response was creating new DOM TreeEvery Response was creating new DOM Tree

AJAX Programming (Asynchronous JavaScript andAJAX Programming (Asynchronous JavaScript andXML Programming)XML Programming)

Server <Server <--> XmlHttpRequest Object <> XmlHttpRequest Object <--> JavaScript <> JavaScript <-->>DOM TreeDOM Tree

Saved Server Processing Time, Saved Bandwidth andSaved Server Processing Time, Saved Bandwidth andProvided Better User ExperienceProvided Better User Experience

AsynchronousAsynchronous

Difficult to Debug, Difficult to understand the codeDifficult to Debug, Difficult to understand the codeconstruct, Difficult to interact with the DOMAPI, Lack of construct, Difficult to interact with the DOMAPI, Lack of and Difficult to create Data Visualization, No threading, Noand Difficult to create Data Visualization, No threading, NoAdvanced Libraries like Reflection, LINQ, CollectionAdvanced Libraries like Reflection, LINQ, CollectionClasses, Cryptography,Classes, Cryptography, etcetc, Different than traditional, Different than traditionalObjectObject--Oriented ProgrammingOriented Programming

HTML5 (Animation, Transformation, Drawing, VideoHTML5 (Animation, Transformation, Drawing, VideoPlayback, etc.)Playback, etc.)



AJAXAJAX



Evolution of InternetEvolution of Internet

ConnectivityData

ExchangeInteroperability

TCP/IP XML WebServices

Internet

Revolution

Data

Revolution

Process

Revolution



Microsoft .Net FrameworkMicrosoft .Net FrameworkOverview «Overview «





What is .NET?

Completely new model for buildingCompletely new model for buildingsystems on Windows family of systems on Windows family of operating systems as well as nonoperating systems as well as non--

Microsoft OS such as Mac OS x2,Microsoft OS such as Mac OS x2,LinuxLinux



What is .NET?

.NET is a platform that provides a.NET is a platform that provides astandardized set of services.standardized set of services.

It¶s just like Windows, exceptIt¶s just like Windows, except

distributed over the Internet.distributed over the Internet. It exports a common interface so thatIt exports a common interface so that

it¶s programs can be run on anyit¶s programs can be run on anysystem that supports .NET.system that supports .NET.

A specific software frameworkA specific software framework Includes a common runtimeIncludes a common runtime



What is .NET?

Core features areCore features are Comprehensive interoperability : ExistingComprehensive interoperability : Existing

COM binaries canCOM binaries can interopinterop with newer with newer .Net.Netbinariesbinaries

Complete and total language integration.Complete and total language integration.

Cross language inheritanceCross language inheritance

Cross language exception handlingCross language exception handling

Cross language debuggingCross language debugging

Common runtime engine shared by allCommon runtime engine shared by all .Net.Netaware languages.aware languages.

Comprehensive base class librariesComprehensive base class libraries

Simplified deployment modelSimplified deployment model ± ± under under .Net.Netthere is no need to register a binary inthere is no need to register a binary in

registryregistry



.NET Framework.NET Framework

Programming model for .NETProgramming model for .NET

Platform for running .NET managedPlatform for running .NET managedcode in a virtual machinecode in a virtual machine

Provides a very good environment toProvides a very good environment todevelop networked applications anddevelop networked applications andWeb ServicesWeb Services

Provides programming API andProvides programming API andunified languageunified language--independentindependentdevelopment frameworkdevelopment framework




Building blocks of .Net PlatformBuilding blocks of .Net Platform(CLR + CTS + CLS)(CLR + CTS + CLS)

CLRCLR Runtime layer of .Net is referredRuntime layer of .Net is referredas Common Language Runtime.as Common Language Runtime.

Primary goal isPrimary goal is ± ±

To locate, load and manage .NetTo locate, load and manage .Nettypestypes

Memory ManagementMemory Management Security ChecksSecurity Checks




CTSCTS Common Type System ,Common Type System ,specifies all possible data types andspecifies all possible data types andprogramming constructs supported byprogramming constructs supported byruntime.runtime.

CLSCLS Common LanguageCommon LanguageSpecification, defines a subset of Specification, defines a subset of common types and programmingcommon types and programmingconstructs that all .Net programmingconstructs that all .Net programminglanguage can agree on.language can agree on.




Base Class LibrariesBase Class Libraries Encapsulates various primitivesEncapsulates various primitivessuch as threads, file I/O, graphicalsuch as threads, file I/O, graphical

rendering. They define types whichrendering. They define types whichfurther facilitate DB access, XMLfurther facilitate DB access, XMLmanipulation, constructions of GUImanipulation, constructions of GUIetc.etc.




Common Language RuntimeCommon Language Runtime

Operating SystemOperating System


CLR manages code executionCLR manages code executionat runtimeat runtime

Memory management, threadMemory management, threadmanagement, etc.management, etc.




Base Class LibraryBase Class Library



.NET Framework (Base Class Library).NET Framework (Base Class Library)

ObjectObject--oriented collection of oriented collection of reusable typesreusable types

Collections, I/O, Strings, «Collections, I/O, Strings, «




Data Access Layer Data Access Layer




ADO .NET and XMLADO .NET and XML

Access relational databasesAccess relational databases

Disconnected data modelDisconnected data model

Work with XMLWork with XML




ASP.NET & Windows FormsASP.NET & Windows Forms




ADO .NET and XMLADO .NET and XML

ASP .NETASP .NETWeb Forms Web ServicesWeb Forms Web Services

Mobile Internet Toolkit Mobile Internet Toolkit

WindowsWindows

FormsForms

Create application¶s frontCreate application¶s front--endend ± ±WebWeb--based user interface,based user interface,Windows GUI, Web services, «Windows GUI, Web services, «











Evolution of .Net Framework «Evolution of .Net Framework «

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Evolution of .Net Framework «Evolution of .Net Framework «

Each version of the .NET Framework contains thecommon language runtime (CLR) as its corecomponent, and includes additional components

such as the base class libraries and other managed libraries. This topic describes the keycomponents of the .NET Framework versions,provides information about the underlying CLR

versions and associated developmentenvironments, and identifies the versions that areinstalled by Windows.







What's New in the .NET Framework 3.5

In this version Microsoft enhanced features of .NET Framework Version 3.0 and add some new too. which get updated or added by

Microsoft are:

.NET Compact Framework

ASP.NET

Add-Ins and Extensibility

Common Language Runtime

Cryptography

Networking

Windows Communication Foundation

Windows Presentation Foundation

Windows Workflow Foundation

Windows Forms

LINQ Expression Trees



1- .NET Compact Framework

. NET Compact Framework helps in the develop contents for a Pocket

PC or a Smartphone. The .NET Compact Framework version 3.5expands support for distributed mobile applications by includes:

WCF ,LINQ

Improvements made to Windows Forms controls.

SoundPlayer to play multiple sounds.

Supports Compression through the System.IO.Compressionnamespace .

Supports the CLR Profiler

Improvements have been made to logging features

The class library documentation improved .

Strong names that are greater than 1,024 bytes are nowsupported ,etc.



2- ASP.NET

ASP.NET 3.5, ASP.NET AJAX is integrated into the .NET Framework.

ASP.NET include new data control ListView and DataPager along witha new datasource control called the LinqDataSource that exposesLanguage Integrated Query (LINQ) to Web developers through theASP.NET data source control architectures.

3- Add-Ins and Extensibility

The System.AddIn.dll assembly in the .NET Framework 3.5 provides powerful and flexible support to developers of extensible

applications. It introduces a new architecture and model that helpsdevelopers with the initial work to add extensibility to an applicationand by ensuring that their extensions continue working as the hostapplication changes.



4- Common Language Runtime

Common Language Runtime used in .NET 3.5 has improved

and its feature also gets updated.

Which are Collections, Diagnostics, I/O and Pipes, GarbageCollection, Reflection and Reflection Emit in Partial Trust,Threading Better Reader n Writer Lock, ThreadPoolPerformance Enhancements, Time Zone Improvements,TimeZoneInfo and DateTimeOffset

5- Cryptography

To improve security .NET 3.5 updated with some features. There are

new cryptography classes for verifying and obtaining information

about manifest signatures for ClickOnce applications. The .NET

Framework 3.5 supports the Suite B set of cryptographic algorithms

published by the National Security Agency (NSA).



6- Networking

Several features in networking also get improved in .NET3.5. Peer to peer networking is a serverless networkingtechnology that allows several network devices to shareresources and communicate directly with each other isget improved. The Socket class has been enhanced for use by applications that use asynchronous network I/Oto achieve the highest performance. These enhancements

were specifically designed for network server applications that require the high-performance.



7-Windows Communication Foundation and windows Workflow Foundation

The .NET Framework 3.5 unifies the Windows WorkflowFoundation (WF) and Windows CommunicationFoundation (WCF) frameworks so that you can use WFas a way to author WCF services or expose your existingWF workflow as a service. This enables you to createservices that can be persisted, can easily transfer data inand out of a workflow, and can enforce application-level

protocols.



8- Windows Presentation Foundation

In the .NET Framework 3.5, Windows Presentation Foundation

contains changes and improvements in numerous areas, includingversioning, the application model, data binding, controls,documents, annotations, and 3-D UI elements.

9- Windows Forms

Windows Forms has enhanced to host Windows PresentationFoundation (WPF) controls and content together with WindowsForms controls. You can also open WPF windows from a WindowsForm. Client application services are new in the .NET Framework

3.5 and enable Windows-based applications (including WindowsForms and Windows Presentation Foundation applications) to easilyaccess the ASP.NET login, roles, and profile services. Theseservices enable you to authenticate users and retrieve user roles andapplication settings from a shared server



10- Language-Integrated Query (LINQ)

Language-Integrated Query (LINQ) is a new feature inVisual Studio 2008 and the .NET Framework 3.5.LINQ adds native data querying capability to C# and

VB.NET along with the compiler and Intellisensesupport. This technology can be extended to support potentially any kind of data store. The .NETFramework 3.5 includes LINQ provider assemblies thatenable the use of LINQ for querying .NET Framework

collections, SQL Server databases, ADO.NET Datasets,and XML documents.



11- Expression Trees

Expression trees are new in the .NET Framework 3.5, and provide a way to represent language-level code in theform of data. Expression trees are used extensively inLINQ queries that target remote data sources such as aSQL database. These queries are represented as

expression trees, and this representation enables query providers to examine them and translate them into adomain-specific query language.

Visual C#, Visual C++ 2008,Visual Basic Language Three

Microsoft programming languages explicitly target the.NET Framework so to achive this some new changes arecarried out for it



Comparison between

J2EE and .NET



Comparison between J2EE and .NET Architectures



J2EE and .NET

Execution Engine

J2EE

Java source code compiles into machine-independentbyte code

Runtime Environment : JVM

.NET

Any compliant language compiles into MSIL

Runtime environment : CLR

Both JVM and CLR ,support services, such as codeverification, memory management via garbage

collection, and code security



J2EE and .NET

Cross Platform Portability

J2EE

Platform Independent

JDK should exist on target machine

.NET

Supports Windows platformCLR should exist on target machine

Can support other platforms provided it has its ownJIT complier



J2EE and .NET

Language Support

J2EETied to Java

Supports other languages via interface technology

.NET

Language independent

Supports any language if mapping exists from that

language to IL



J2EE and .NET

Tools Support

J2EE

Can employ any number of tools

Pro :Developer has a great deal of choice

Con :Difficulty in choosing a right tool for a given job

.NET

Visual Studio.NET, single IDE for building anapplication



AssignmentAssignment

What changes in the transition fromWhat changes in the transition from

.Net.Net 2.02.0 .Net.Net 3.03.0 .Net.Net 3.53.5

What is the driving force behindWhat is the driving force behindthe changes inthe changes in .Net.Net 2.02.0 .Net.Net 3.03.0 .Net.Net 3.53.5

Documents

Session Dot Net Framework Overview