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What is .NET?.NET FrameworkVisual Studio.NETC#Q & A
What is Microsoft .NET?
.NET represents an advanced new generation of software that will drive the Next Generation Internet. Its purpose is to make information available any time, any place, and on any device.Quick Definition
.NET is an initiative to integrate all Microsoft products with the “Next Generation” web.
http://www.microsoft.com/net/
Next Generation Internet
Web siteWeb site
Web siteWeb site
Web siteWeb site
BackendBackendAppApp
MegaMegaServiceService
BackendBackendAppApp
MegaMegaServiceService
Loosely-Loosely-coupled, coupled, services services connected by connected by XML-based XML-based messages and messages and contracts, contracts, written in many written in many languageslanguages
ServiceServiceDeviceDevice
XML-XML-msgsmsgs ServiceService
ServiceService ServiceService
What is Microsoft .NET? (Cont.)
Core components of .NET are:.NET Infrastructure and Tools.NET Services
An integrated set of building block services for the new Internet, including Passport.NET (for user authentication), and services for file storage, user preference management, calendar management, and many others.
.NET User ExperienceA broader, more adaptive user experience, where information is delivered in a variety of ways on a variety of different devices.
.NET Device SoftwareEnables a new breed of smart Internet devices that can leverage Web Services
http://www.microsoft.com/business/vision/netvision.asp
.NET Infrastructure and Tools
.NET Infrastructure and Tools.NET Enterprise Servers
SQL 2000Exchange 2000ISA 2000Host Integration Server 2000Application Center 2000BizTalk Server 2000Commerce Server 2000
Visual Studio.NET.NET FrameworkWindows.NET
“Whistler” (Windows XP)
.NET Framework
.NET Framework
.NET Framework consists of 3 main parts:
Common Language RuntimeFramework Classes/LibrariesASP.NET
http://msdn.microsoft.com/net
The .NET Framework
Base Class LibraryBase Class Library
Common Language SpecificationCommon Language Specification
Common Language RuntimeCommon Language Runtime
ADO.NET: Data and XMLADO.NET: Data and XML
VBVB C++C++ C#C#V
isual S
tud
io.N
ET
Visu
al Stu
dio
.NE
T
ASP.NET: Web ServicesASP.NET: Web Servicesand Web Formsand Web Forms
JScriptJScript ……
WindowsWindowsFormsForms
WindowsWindowsFormsForms
Common Language Runtime (CLR)
A common runtime for all .NET languagesCommon type systemCommon metadataIntermediate Language (IL) to native code compilersMemory allocation and garbage collectionCode execution and security
Over 15 languages supported todayC#, VB, Jscript, Visual C++ from MicrosoftPerl, Python, Smalltalk, Cobol, Haskell, Mercury, Eiffel, Oberon, Oz, Pascal, APL, CAML, Scheme, etc.
Rational is working on Java compiler for CLR
Common Language Runtime (CLR)
Enables cross-language interoperabilityCommon Language Specification describes interoperability requirements
Language/Hardware/OS IndependentCompact framework for small devices
Industrial strength Garbage collectorDesigned for multi-processor servers
CLR: Execution Model
VBVBSource Source codecode
CompilerCompiler
C++C++C#C#
CompilerCompilerCompilerCompiler
AssemblyAssemblyIL CodeIL Code
AssemblyAssemblyIL CodeIL Code
AssemblyAssemblyIL CodeIL Code
Operating System ServicesOperating System Services
Common Language RuntimeCommon Language Runtime
JIT CompilerJIT Compiler
Native CodeNative Code
ManagedManagedcodecode
UnmanagedUnmanagedComponentComponent
.NET Framework Libraries
Single consistent set of object oriented class libraries to enable building distributed web applications (Unified Classes)
Built using classes arranged across logical hierarchical namespaces
For example: System.Data.SQL
Work with all CLR languagesNo more “VBRun” or “MFC” divide
.NET Framework Libraries
Unified Classes
Web Classes (ASP.NET)
XML Classes
System Classes
Drawing Classes
Windows FormsData (ADO.NET)
Controls, Caching, Security, Session, Configuration etc
Collections, Diagnostics, Globalization, IO, Security,Threading Serialization, Reflection, Messaging etc
ADO, SQL,Types etc
Drawing, Imaging, Text, etc
Design, Cmpnt Model etc
XSLT, Path, Serialization etc
ASP.NET
ASP.NET is a new programming framework designed to make web apps easier to:
Build, Deploy, Run
Radical advancement of today’s ASPBroader programming language support
Visual Basic.NET, Jscript.NET, C#Easier page programming model
NamespacesRicher XML features and integrationXCopy/FTP deploymentBetter reliability and recoveryExcellent Visual Studio designer support
ASP.NET
ASP.NET is compiled, not interpretedBetter performanceEarly binding, strong typing, JIT compiling to native code
Configuration settings in XML-based filesSession state can now be shared across a web farm of ASP.NET servers
.NET State Server Process manages stateApplication state is still single severASP.NET detects and recovers from problems
Access violations, memory leaks, deadlocksASP.NET supports pre-emptive cycling of apps
Time and request based settings
Visual Studio.NET
Visual Studio.NET
Integrated Development EnvironmentVisual Basic.NET
Many language enhancementsInheritance,Overloading, Free Threading
Visual C++Integration with .NET Framework with managed extensions (classes)
C#New development languageBased on C/C++ with Garbage Collection/Memory Management
JUMP (Java User Migration Path) to .NET (1/25/01)
Visual J++ has been removed from the Visual Studio suite.
http://msdn.microsoft.com/vstudio
JUMP to .NET
Consists of 3 sets of tools and a service offering
Interoperability supportProgramming tools supportAutomated conversion from Java language source code to C#Migration services
VS.NET Features
Single IDE for all LanguagesServer Explorer
Event Viewer, Message Queues, ServicesSQL Databases, Data Connection, Etc.
Integrated IE BrowserHTML/XML EditorsMacros/Macro ExplorerSolution ExplorerTabbed DocumentsDynamic HelpCommon Forms Editor
VB.NET, C++, and C#
Visual Studio.NET Demo
C#
Intro to C#
Design Goals of C#Component Orientated LanguageRobust and Durable Software
FeaturesClassesNamespacesNo header files
VB.NET vs. C#Ability to embed C++ code in C# codeElegance of C/C++ language
Design Goals C#
Component OrientedProperties, methods, events
Robust and DurableGarbage collection (No memory leaks and stray pointers)Exception HandlingType-safety (No uninitialized variables)
Based on C++Interoperability
Support for XML, SOAP
ADO.NET
ADO.NET is the preferred data access method in the .NET FrameworkBetter support for disconnected data accessSpecialized namespacesSystem.Data.SQL – Tuned for SQL ServerSystem.Data.ADO – OLEDB
PortableNative XML Support
ADO.NET
ADOConnectionSimilar to Connection object in ADO
ADOCommandSimilar to Command object in ADO
ADODataSetCommandSomewhat like Recordsets for ADO.NET (DataSet)Designed for stateless operations
ADODataReaderFor streaming methods, similar to Stream
SQLConnection, SQLCommand, and SQLDataSetCommand, SQLDataReader
Resources
Microsofthttp://www.microsoft.com/net
http://msdn.microsoft.com/net
Programmer Resourceshttp://www.gotdotnet.com
http://www.devx.com
VB6 to VB.NET Whitepaperhttp://msdn.microsoft.com/library/techart/vb6tovbdotnet.htm
Example Sitehttp://www.ibuyspy.com
