Blog - Title

  • ADO.NET Blog

    ADO.NET Entity Framework Performance Comparison

    • 35 Comments
    There have been a few questions from the last performance blog post about how the Entity Framework compares against other object relational mapping frameworks. The simplest way to compare the performance of Entity Framework with various competing products...
  • ADO.NET Blog

    Stored Procedure Mapping

    • 30 Comments
    In this blog post, we’d like to walk through the EDM designer’s support for specifying insert, update, and delete stored procedures for entity types. Each of these stored procedure types has some non-obvious requirements and capabilities and we’d especially...
  • ADO.NET Blog

    Extending Lightweight Transactions in SqlClient

    • 12 Comments
    We’ve done some work with SqlClient’s System.Transaction support for Sql Server 2008. To explain what we did, and why, I’m going setup some background first, which may also be useful for understanding the existing behavior. System.Transactions offers...
  • ADO.NET Blog

    Cool Entity Framework Sample

    • 2 Comments
    Samir Bajaj, a developer on the ADO.NET Team recently put together a very cool Drawing Editor sample application based on the Entity Framework and backed by SQL Server. The application makes a very compelling demonstration of the Entity Framework offers...
  • ADO.NET Blog

    Coming soon to LINQ to SQL

    • 34 Comments
    LINQ to SQL went gold a few months ago with the release of Visual Studio 2008 and .NET Framework 3.5. It has been somewhat quiet since then – and as we near the launch of Visual Studio 2008, you may be wondering what we have been up to. Things aren...
  • ADO.NET Blog

    Exploring the Performance of the ADO.NET Entity Framework – Part 2

    • 30 Comments
    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...
  • ADO.NET Blog

    Exploring the Performance of the ADO.NET Entity Framework - Part 1

    • 33 Comments
    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...
  • ADO.NET Blog

    ADO.NET performance improvements with the .NET Framework 2.0 SP1

    • 12 Comments
    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...
  • ADO.NET Blog

    Programming LINQ and the ADO.NET Entity Framework Webcast

    • 4 Comments
    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...
  • ADO.NET Blog

    SampleEdmxCodeGenerator sources

    • 7 Comments
    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...
  • ADO.NET Blog

    Customizing Code Generation in the ADO.NET Entity Designer

    • 6 Comments
    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...
  • ADO.NET Blog

    How does the ADO.NET Entity Designer generate code?

    • 7 Comments
    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...
  • ADO.NET Blog

    How to Extract CSDL from EDMX

    • 8 Comments
    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...
  • ADO.NET Blog

    Annotations in CSDL

    • 6 Comments
    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...
  • ADO.NET Blog

    Happy New Year!

    • 0 Comments
    From the ADO.NET Team
  • ADO.NET Blog

    The ADO.NET Entity Framework - Not Just For SQL Server!

    • 24 Comments
    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...
  • ADO.NET Blog

    Sample ADO.NET Entity Framework Provider - Beta 3

    • 6 Comments
    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...
  • ADO.NET Blog

    How To: use your existing CSDL/MSL/SSDL files in the Entity Designer CTP2

    • 2 Comments
    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.
  • ADO.NET Blog

    Entity Data Model Designer Video - CTP 2

    • 10 Comments
    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...
  • ADO.NET Blog

    ADO.NET Data Services CTP Released

    • 4 Comments
    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...
  • ADO.NET Blog

    Entity Framework Beta 3 - Breaking Changes

    • 1 Comments
    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...
  • ADO.NET Blog

    Entity Designer CTP2

    • 27 Comments
    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...
  • ADO.NET Blog

    ADO.NET Entity Framework Beta 3 Released!

    • 45 Comments
    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...
  • ADO.NET Blog

    New ADO.NET Team Members - Part 3

    • 0 Comments
    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...
  • ADO.NET Blog

    New ADO.NET Team Members - Part 2

    • 9 Comments
    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...
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