Microsoft Dotnet Framework 2.0
The first two .NET Frameworks(1.1 & 2.0) focused on allowing many
different languages to communicate with a common set of libraries
translated through the Common Language Runtime (CLR). Introduced
with .NET 1.1 and enhanced with .NET 2.0, the CLR works on a
relatively simple concept: A common runtime model executes code
for any system running the .NET Framework. What this means to you
as a developer is that you don’t need to keep relearning languages
for different technologies. For instance, a C# developer who writes
Windows Forms applications take the knowledge used for building
forms and apply it to writing web pages. Similarly, a Visual Basic .NET
developer can switch from writing mobile applications to writing web
services. The CLR acts as an arbitrator and communicates back and
forth.
It brings a lot of evolution in class of the framework and re-factor
control including the support of
• Generics• Anonymous methods
• Partial class
• Nullable type
• .NET Micro Framework
Microsoft Dotnet Framework 3.0
It is also called WinFx, includes a new set of managed code APIs that are an integral part of Windows Vista and Windows Server 2008
operating systems and provides
The .NET 3.0 Framework is not improving upon existing technologies
but rather introducing four new foundation technologies:
• Windows Communication Foundation (WCF), formerly called
Indigo; a service-oriented messaging system which allows programs to
interoperate locally or remotely similar to web services.
• Windows Presentation Foundation (WPF), formerly called
Avalon; a new user interface subsystem and API based on XML and
vector graphics, which uses 3D computer graphics hardware and
Direct3D technologies.
• Windows Workflow Foundation (WWF) allows for building of task
automation and integrated transactions using workflows.
• Windows CardSpace (WCS), formerly called InfoCard; a software
component which securely stores a person's digital identities and
provides a unified interface for choosing the identity for a particular
transaction, such as logging in to a website.
Microsoft Dotnet Framework 3.5
The .NET Framework is not improving existing technologies & introducing technologies. It implement Linq evolution in language. So
we have the following evolution in class:
• Linq for SQL, XML, Dataset, Object
• Addin system
• p2p base class
• Active directory
• ASP.NET Ajax
• Anonymous types with static type inference
• Paging support for ADO.NET
• ADO.NET synchronization API to synchronize local caches and server
side datastores
• Asynchronous network I/O API
• Support for HTTP pipelining and syndication feeds.
• New System.CodeDom namespace.
.NET 3.5 has good Designer experience, JavaScript debugging and
IntelliSense features, and the ability to view and even step into the core
.NET Framework code during debugging.
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