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.NET 3.5 SP1 arrives

By David Worthington

August 8, 2008 — The latest Service Pack for .NET Framework 3.5 features new abstractions for working with data, smaller client profiles and performance updates to Windows Presentation Foundation (WPF). It will ship on Monday, Aug. 11 Microsoft said.

In a July 31 meeting with SD Times, Shanku Niyogi, product unit manager of the UI Framework and Services team at Microsoft, said that .NET Framework 3.5 Service Pack 1 (SP1) would be broadly available in all localized versions “within a few weeks.”

SP1 adds support for SQL Server 2008, the ADO.NET entity framework and ADO.NET data services, which was formerly known as "Astoria."

Astoria uses ADO.NET to model data, and it exposes entities as URI-addressable resources to be consumed by Web clients within corporate networks and across the Internet. The entity model provides developers with an additional layer of abstraction between the database and themselves.

Also new in SP1 is ASP.NET Dynamic Data, a framework for building applications that are based on a LINQ-to-SQL or Entity Framework data model, and Microsoft’s Model-View-Controller pattern for ASP.NET.

ASP.NET Dynamic Data uses a metadata-driven approach to permit developers to re-use business rules, Niyogi explained. For example, the logic and UI that represents a zip code validation rule in the data model can be plugged in wherever a zip code is being edited, he said.

Microsoft has also changed how URLs are generated in ASP.NET. It has included a function to shorten URLs into a format that is optimized for search engine coverage, he said.

As previously reported, SP1 includes performance optimizations for WPF’s text, graphics, media and data stack. It also optimizes CLR data structures to reduce disk I/O operations and improve memory layout when loading and running applications, and also introduces smaller client profiles to reduce the size of installer packages.

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