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December 7, 2007

Microsoft releases ADO.NET Entity Framework, ASP.NET 3.5 Extensions previews

Posted by David Hunter at 10:59 AM ET.

As promised last week, Microsoft yesterday released preview versions of the ADO.NET Entity Framework and ASP.NET 3.5 Extensions:

Microsoft Corp. today announced the release of Beta 3 of the ADO.NET Entity Framework. Designed to make it even easier for developers to build data-centric applications and services regardless of the underlying data source, the ADO.NET Entity Framework is already gaining significant support from multiple database vendors and third-party providers, including Core Lab, DataDirect Technologies, Firebird Foundation Inc., IBM Corp., MySQL AB, Npgsql , OpenLink Software Inc., Phoenix Software International, Sybase Inc. and VistaDB Software Inc. Further enhancing the toolset for Web developers, Microsoft also announced the upcoming availability of a preview of ASP.NET 3.5 Extensions, which draws on many of the capabilities of the Entity Framework and provides an exciting sneak peek at additional functionality planned for ASP.NET next year.

The ADO.NET Entity Framework extends the capabilities of Microsoft’s popular Language-Integrated Query (LINQ) technology by enabling developers to use LINQ against many back-end databases. Developers can work at a conceptual level and focus on business logic rather than data access, which makes it significantly easier for them to work with data-centric applications and services.

Microsoft seems to have rounded up a nice crop of database vendor support since those named above have promised within 3 months of the ADO.NET Entity Framework RTM as well they should if they want to play in the .NET development market.

Tire kickers can download the ADO.NET Entity Framework Beta 3 at and the ASP.NET 3.5 Extensions preview will be available shortly at

Filed under .NET FX 3.5, ADO.NET, AJAX, ASP.NET 2.0, ASP.NET AJAX, Beta and CTP, Microsoft, Silverlight, Technologies, Tools, Visual Studio 2008

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3 Responses to “Microsoft releases ADO.NET Entity Framework, ASP.NET 3.5 Extensions previews”

  1. Release TODAY! Says:

    [...] >>>>>> is this correct link for extensions preview that will be shipped (today?) (taken from Link) [...]

  2. David Hunter Says:

    Yes, that is the correct link for the extensions preview. It apparently took a while for Microsoft to get it enabled.

  3. SP1 betas released for Visual Studio 2008 and .NET 3.5 | Microsoft News Tracker Says:

    [...] At the first link there’s quite a list of enhancements including SQL Server 2008 support, ADO.NET Data Services (formerly code-named "Astoria"), and the ADO.NET Entity Framework and ASP.NET 3.5 extensions previewed in December.   Filed under Tools, Technologies, Beta and CTP, AJAX, ASP.NET AJAX, Visual Studio 2008, Microsoft, .NET FX 3.5, ADO.NET   [Permalink] [TrackBack] [...]

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