This week brought a host of new CTPs (Community Technology Previews) to the MSDN Download Center:
.NET Framework 3.5 builds incrementally on the new features added in .NET Framework 3.0, for example, Windows Workflow Foundation (WF), Windows Communication Foundation (WCF), Windows Presentation Foundation (WPF) and Windows CardSpace. In addition, .NET Framework 3.5 contains a number of new features in several technology areas. These new features have been added as new assemblies to avoid breaking changes. They include the following: Deep integration of Language Integrated Query (LINQ) and data awareness. This new feature will let you write code written in LINQ-enabled languages to filter, enumerate, and create projections of several types of SQL data, collections, XML, and DataSets by using the same syntax. ASP.NET AJAX lets you create more efficient, more interactive, and highly-personalized Web experiences that work across all the most popular browsers. New Web protocol support for building WCF services including AJAX, JSON, REST, POX, RSS, ATOM, and several new WS-* standards. Full tooling support for WF, WCF, and WPF, including the new workflow-enabled services technology. New classes in .NET Framework 3.5 base class library (BCL) address the most common customer requests.
This CTP contains updates to the ADO.NET Entity Framework since the Visual Studio Codename "Orcas" Beta 1 release, including changes in Object Services, Query, Entity Client, and the Entity Data Model Wizard in Visual Studio. Some of the new features include IPOCO, detaching from long-running ObjectContext instances, multiple entity sets per type, support for referential integrity constraints, span support, transactions, serialization, no more default constructors in code-generated classes, improvements to stored procedure support, access to the underlying store connection, directory macros in the entity connection string to support hosted scenarios, native SQL read-only views, UNICODE support in Entity SQL, query plan caching, and canonical functions in Entity SQL.
Building on the vision of software + services, Microsoft Code Name “Acropolis” makes it easier to build and manage modular, business-focused, client applications for Microsoft Windows with the .NET Framework. It builds on the rich capabilities of Microsoft Windows and the .NET Framework, including the Windows Presentation Foundation (WPF), by providing tools and pre-built components that help developers quickly assemble an application from loosely-coupled parts and services. Code Name “Acropolis” reduces the complexities of building occasionally connected client applications and provides the ability to assemble and reconfigure systems without having to write as much code. It is part of the .NET Client Futures release, Microsoft’s preview of upcoming technologies in Microsoft Windows client development, available now at www.windowsclient.net.
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