Query Performance During this post I’ll show a few patterns on how to improve the query performance. A major design element for performance is the query cache. Once a query is executed, parts of the query are maintained in a global cache. Because...

Performance Matters No matter what type of application you are developing at some point in the lifecycle of a software application or service, performance matters; this is especially true when accessing data. In this article, I’m going to spend some...

With the release of Visual Studio 2008 and the .NET Framework 2.0 SP1, there are some bug fixes and improvements in ADO.NET (A list of the general fixes is at http://support.microsoft.com/kb/945757 ) We worked with the CLR team to get improvements...

Check out our upcoming webcast by Mike Pizzo on LINQ and the Entity Framework. Programming LINQ and the ADO.NET Entity Framework Summary: Language Integrated Query (LINQ) introduces an exciting new way fo applications to build strongly typed queries...

As a follow up to my previous article on Customizing Code Generation in the ADO.NET Entity Designer , here are the sources and instructions for SampleEdmxCodeGenerator. SampleEdmxCodeGenerator is not intended for production use; instead, it demonstrates...

In previous posts, I’ve described CSDL annotations , how to extract CSDL from EDMX and introduced you to how the ADO.NET Entity Designer generates code . In this post, I’ll delve into replacing the EntityModelCodeGenerator with a SingleFileGenerator...

I’ve had this article pending for a while; numerous folks wanted more information on this topic and I finally got some this weekend and wrote it up for your reading pleasure. The ADO.NET Entity Designer stores all its information in the EDMX file which...

The ADO.NET Entity Designer stores all its information in the EDMX file which merely encapsulates the EF metadata artifacts (CSDL/MSL/SSDL content) along with a bunch of designer data in a single file. I’ve described the structure of the EDMX file in...

The CSDL schema supports (what we internally call) annotations . Basically, annotations are XML attributes from a custom XML namespace that are part of your EntityType’s definition. Here’s an example of an EntityType in CSDL with annotations. Notice...

From the ADO.NET Team

As you're hopefully aware, Beta 3 of the ADO.NET Entity Framework is already available. If not, see the ADO.NET team blog here . You may not be aware of the various ADO.NET provider writers who are publicly pledging their support for the Entity Framework...

We've updated the sample provider to work with Beta 3 of the ADO.NET Entity Framework. The sample provider is available for download as an attachment to this blog post. The sample provider has undergone some minor changes in moving from Beta 2 to Beta...

Sanjay Nagamangalam, the lead PM for the Entity Designer, has written up a great how-to for using existing EF metadata files in the new CTP2 designer, posted on Danny Simmons' blog.

We have created a new Camtasia video that demonstrates a number of important new features in the Entity Data Model Tools December CTP. First, it is now possible to visually map the insert, update, and delete stored procedures for entity types. Additionally...

The December CTP of ADO.NET Data Services (also known as Project Astoria) has been Released! You can download the CTP here as part of the ASP.NET 3.5 Extensions preview release . For more information on ADO.NET Data Services check out http://blogs...

There were a number of changes to the Entity Framework between Beta 2 and Beta 3 that will require updates to existing source code. These breaking changes can be found here including the mitigation for adjusting to the new behavior, and a side by side...

You asked and we listened. The Dec 2007 CTP of the Entity Designer is available here and works over Visual Studio 2008 RTM and the Entity Framework runtime beta 3. We have enhanced the designer to enable several new scenarios and fixed a slew of bugs...

Announcing the release of the ADO.NET Entity Framework Beta 3 ! The ADO.NET Entity Framework Beta 3 release enables users to visually design models and mappings using Visual Studio 2008 RTM and the .NET Framework 3.5 RTM. This release also incorporates...

Alex recently joined the ADO.NET Team as a Metadata PM for the EDM and EF, and is an avid blogger. You can check out Alex's personal blog at http://blogs.msdn.com/alexj/ to learn more about him and what he is working on, and expect to see more of Alex...

Hi – I’m Faisal Mohamood and I’m a Program Manager for LINQ to SQL and Object Services for Entity Framework. I’m a fairly recent addition to the team, and prior to this I was Program Manager on the Visual Studio Platform team, looking after parts of MSBuild...

My name is Diego Vega and I joined the Entity Framework team in last October. I am the new Program Manager working on LINQ to Entities & Databinding. My background is in software development and before coming to Microsoft I worked for ISVs and...

Testing has identified some issues connecting to versions of SQL Server 2008 from applications using the .NET Framework v2.0 SP1 or developers using Visual Studio 2005 or Visual Studio 2008. These connectivity issues should be considered before upgrading...

We’ve created a Camtasia™ video, available here , demonstrating some of the features of the Entity Data Model Designer. This video was just shown at VSLive in Las Vegas and demonstrates some of the mapping capabilities of the tools and runtime...

We recently posted some great new samples to help you get started with the Entity Framework. Check out these and more samples on our Codeplex site at http://www.codeplex.com/adonetsamples/Release/ProjectReleases.aspx?ReleaseId=7792     Elisa...

Interested in hearing more? Check out this great post by Erick Thompson our DataSet PM on his blog .