Net framework

The Microsoft .NET Framework

by

jeyasri 10mss016

Sreejha 10mss033

Vijaykumar 10mss039

Agenda

Introduction to .NET

The .NET Framework

Common Language Runtime

.NET Framework Services

Common Language Specification

.NET framework languages

How Did We Get to .NET?The Evolution of Web Applications

First generation of Web applications -non-interactive content (HTML static content)

Second generation of Web applications - scalable back-end and a richer User Interface. (DCOM, ASP, CGI, Cold Fusion, dynamic content)

Third generation of Web applications (.NET) - using Web protocols and XML to allow better integration between services on the Web

What is .NET?

.NET is Microsoft’s entry into the Web services arena

XML based

Why the Move to .NET?

DCOM works fine on an Intranet, however:

DCOM does not go through firewalls

Requires too many open TCP/IP ports

Requires Stateful connections

Platform dependent

Portals provide services however:

Non-standard interfaces

Hard to integrate with other applications

Not designed to use outside the scope of the portal

XML Format

XML is a tagged mark-up representation of data

XML consists of a header section, a schema section, and a data section

The header section defines the XML form itself

The schema section defines the format of the data contained in the XML document

The data section provides the mapped data

C:\SicCodes.XML

SOAP Simple Object Access Protocol

Internet becomes integration fabric

Broad industry support

• IBM, Iona, Ariba, Compaq, Lotus, Commerce-One, HP, SAP, others

Submitted to W3C:

• http://www.w3.org/TR/SOAP/

XML-based integration for web services

Agenda

Introduction to .NET and Web Services

The .NET Framework





What Is the .NET Framework?

A collection of technologies that

Unite isolated Web applications

Make information available anytime, anywhere

Simplify development and deployment

How does .NET achieve the above?

Web Services

ADO.NET Datasets and XML support throughout the platform

Rich tools, runtime services and XCOPY Deployment

.NET Framework definition:

The .NET Framework is a software technology that provides extensive libraries, pre-implemented solutions and a managed run-time environment. Eonfusion is built on the .NET Framework.

The .NET Framework delivers more controls, improved start-up performance, AJAX support, and powerful new graphics features for client development.

It is designed to make significant improvements in code-reuse, code-specialization, resource management, multi-language development, security, deployment and administration.

.NET Framework, Languages, Tools

Base Class Library



Data and XML

VB C++ C#

Visu

al Stu

dio

.NE

T

WebServices

JScript …

UserInterface

Agenda


The .NET Framework






Base Class Library



Data and XML

VB C++ C#

Visu

al Stu

dio

.NE

T

WebServices

JScript …

UserInterface

The .NET Common Language Runtime

Manages running code

• Threading

• Memory management

Multi-language

• Inheritance, Errors, Debugging

Fine-grained evidence-based security

• Code access security

• Role-based security

• Integrated with underlying OS

“No-touch” deployment


Class Loader

IL to NativeCompilers

CodeManager

GarbageCollector

Security Engine Debug Engine

Type Checker Exception Manager

Thread Support COM Marshaler

Base Class Library Support

It is a special run time environment that provides the underlying infrastructure for Microsoft's .NET framework. This runtime is where the source code of an application is compiled into an intermediate language called CIL , originally known as MSIL (Microsoft Intermediate Language). When the program is then run, the CIL code is translated into the native code of the operating system using a just-in-time (JIT) compiler.[citation needed]

This intermediate language is used to keep the environment platform-neutral and as a result, supports all .NET languages such as C# or VB.NET

Common Language Runtime Design Goals

Dramatically simplify application development

Provide a robust and secure execution environment

Support multiple programming languages

Simplify deployment and management

Agenda


The .NET Framework






Base Class Library



Data and XML

VB C++ C#

Visu

al Stu

dio

.NE

T

WebServices

JScript …

UserInterface


ASP.NET Logical evolution of ASP (compiled)

Web forms Manageable code (non spaghetti)

Windows® forms Framework for building rich clients

ADO.NET, evolution of ADO New objects (e.g., DataSets)

XML Support Throughout

Some .NET Base Class Libraries

System

System.Data System.Xml

System.Web

Globalization

Diagnostics

Configuration

Collections

Resources

Reflection

Net

IO

Threading

Text

ServiceProcess

Security

Design

ADO

SQLTypes

SQL

XPath

XSLT

Runtime InteropServices

Remoting

Serialization

Serialization

Configuration SessionState

Caching Security

Services Description

Discovery

Protocols

UI HtmlControls

WebControls

System.Drawing

Imaging

Drawing2D

Text

Printing

System.WinForms

Design ComponentModel

Agenda


The .NET Framework




.NETframework languages


Base Class Library



Data and XML

VB C++ C#

Visu

al Stu

dio

.NE

T

WebServices

JScript …

UserInterface

The .NET Platform is Language Neutral

• All .NET languages perform the same

• You can leverage your existing skills


• Consumer: Can use the .NET Framework

• Extender: Can extend the .NET Framework

Microsoft provides:

• VB, C++, C#, JScript

Third-parties are building

• APL, COBOL, Pascal, Eiffel, Haskell, ML, Oberon, Perl, Python, Scheme, Smalltalk

.NET Languages Available (or soon to be) Visual Basic

C#

Jscript

C++

Perl

Python

COBOL

Haskell

ML

Ada

Pascal

C

SmallTalk

Oberon

Scheme

Mercury

APL

Eiffel

Oz

Objective Caml

Visual Studio® .NET

.NET .NET PlatformPlatform

Man

age

Man

age

and

Co

llab

ora

tean

d C

oll

abo

rate

DeploymentDeployment

TestingTesting

DevelopmentDevelopment

DesignDesign

AnalysisAnalysis

PlanningPlanning

Agenda


The .NET Framework





.NET Framework languages

.NET Framework is designed for cross-language compatibility. Cross-language compatibility means .NET components can interact with each other irrespective of the languages they are written in.

This cross-language compatibility is possible due to common language runtime.

the output of the compiler is not an executable file but a file that contains a special type of code called the Microsoft Intermediate Language (MSIL).

Contd….

Thus, any code compiled by a .NET complier can interoperate with the .NET Framework.

all .NET applications are converted to IL before execution all primitive data types are represented as .NET types. This means that, a VB Integer and a C# int are both represented in IL code as System.

Languages supported:

Language Description/Usage

APL It is a language for describing procedures in the processing of information. It can be used to describe mathematical procedures having nothing to do with computers or to describe the way a computer works.

C++ C++ derives from the C language. VC++Visual C++ is the name of a C++ compiler with an integrated environment from Microsoft. This includes special tools that simplify the development of great applications, as well as specific libraries. Its use is known as visual programming.

.NET supported languages :

C# C# called as C Sharp is a full fledged Object-Oriented programming language from Microsoft built into the .NET Framework.

Cobol COBOL was the first widely-used high-level programming language for business applications. It is considered as a programming language to have more lines of code than any other language.

Mondrian It is a functional language specifically designed to inter-operate with other languages in an OO environment. Current versions of Mondrian run on .NET. Mondrian also supports ASP.NET, allowing you to embed functional language code in web pages along with C# code.

Public Class Person

Public Property FirstName As String = "John"

Public Property LastName As String

Private strSSN As String

Public Property SSN()

Get

SSN() = strSSN

End Get

Set(ByVal value)

strSSN = value

End Set

End Property

End Class

There are three properties: FirstName, LastName and SSN. FirstName and LastName are automatic properties. They are automatic because after compiling they look almost like SSN property – the variable that holds property value is created automatically.

This above program has Less unit test and Less code.

Resources for .NET

http://www.w3.org/TR/SOAP/ - W3C standards for SOAP implementation

http://www.uddi.org – UDDI standards for web services implementation

http://www.microsoft.com/net - Microsoft .NET home http://msdn.microsoft.com/net - Microsoft .NET

developers home http://msdn.microsoft.com/xml - Microsoft XML

developers home http://msdn.microsoft.com/webservices – Microsoft

Web Services developers home http://www.gotdotnet.com – Developers .NET resource

Thank you

Net framework

Education

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