.NET development framework aims to simplify development and deployment, unify programming models, and provide a secure execution environment with support for multiple languages. It evolves from earlier integration issues by enabling direct interaction between components without requiring complex plumbing. Core features include a common language runtime, a base class library, and simplified application development through technologies like ASP.NET and ADO.NET.

1. SynapseIndia Dotnet
Development Framework

2. .NET Framework
Design Goals
 Dramatically simplifies development and
deployment
 Unifies programming models
 Provides robust and secure execution
environment
 Supports multiple programming languages

3. Framework, Languages,
And Tools
Operating SystemOperating System
Common Language RuntimeCommon Language Runtime
Base Class LibraryBase Class Library
ADO.NET and XMLADO.NET and XML
ASP.NETASP.NET
Web Forms Web ServicesWeb Forms Web Services
Mobile Internet ToolkitMobile Internet Toolkit
WindowsWindows
FormsForms
Common Language SpecificationCommon Language Specification
VBVB C++C++ C#C# JScriptJScript J#J#
VisualStudio.NETVisualStudio.NET

4. One Lap Around .NETOne Lap Around .NET
demodemo

5. Demo: One Lap Around .NET
 Create a simple Web Service
 Test it in Internet Explorer
 Add data logic to it
 Build a smart client for it
 Show seamless and safe deployment of the
smart client

6. Framework, Languages, And Tools
Operating SystemOperating System
Common Language RuntimeCommon Language Runtime
Base Class LibraryBase Class Library
ADO.NET and XMLADO.NET and XML
ASP.NETASP.NET
Web Forms Web ServicesWeb Forms Web Services
Mobile Internet ToolkitMobile Internet Toolkit
WindowsWindows
FormsForms
Common Language SpecificationCommon Language Specification
VBVB C++C++ C#C# JScriptJScript J#J#
VisualStudio.NETVisualStudio.NET

7. The .NET Evolution
Before COM, applications wereBefore COM, applications were
completely separate entitiescompletely separate entities
with little or no integrationwith little or no integration
ApplicatioApplicatio
nn
Code andCode and
datadata
structuresstructures

8. The .NET Evolution
COM provides a way forCOM provides a way for
components to integrate;components to integrate;
However, eachHowever, each
component must providecomponent must provide
the “plumbing” andthe “plumbing” and
objects cannotobjects cannot
directly interactdirectly interact

9. The .NET Evolution
With the .NET FrameworkWith the .NET Framework
common language runtime,common language runtime,
components are built on acomponents are built on a
common substrate; Nocommon substrate; No
“plumbing” is needed and“plumbing” is needed and
objects can directly interactobjects can directly interact

10. AssemblyAssembly
Compilation And Execution
SourceSource
CodeCode
LanguageLanguage
CompilerCompiler
CompilationCompilation
At installation or theAt installation or the
first time eachfirst time each
method is calledmethod is calledExecutionExecution
JITJIT
CompilerCompiler
NativeNative
CodeCode
Code (IL)Code (IL)
MetadataMetadata

11. Simplify Development
 Completely eliminates COM plumbing
 No more…
 Registration
 GUIDs
 .IDL files
 HRESULTs
 IUnknown
 AddRef/Release
 CoCreateInstance
=>self described apps=>self described apps
=>hierarchical namespaces=>hierarchical namespaces
=>unified object model=>unified object model
=>structured exceptions=>structured exceptions
=>common root object=>common root object
=>garbage collector=>garbage collector
=>”new” operator=>”new” operator