Blog - Title

  • ADO.NET Blog

    “Table Splitting”: Mapping multiple entity types to the same table.

    • 29 Comments
    Imagine that you have a table called “Products” which contains a number of columns holding a large amount of data. For example, images of the product from above, front, and side. For most operations against instances of Products, you do not wish to pull...
  • ADO.NET Blog

    Migrating from LINQ to SQL to the Entity Framework: Stored Procedures for data retrieval

    • 37 Comments
    LINQ to SQL supports a wide range of scenarios that involve stored procedure mapping and usage. This also happens to be an area where there is a considerable gap between the features offered by LINQ to SQL and the Entity Framework. In this post, we will...
  • ADO.NET Blog

    Working With Large Models In Entity Framework – Part 2

    • 28 Comments
    In my last post I talked about some of the issues you typically face when using a large Entity model in your application. I have also described a few things that you can use to mitigate some of these problems. In this post I will walk through a couple...
  • ADO.NET Blog

    Working With Large Models In Entity Framework – Part 1

    • 26 Comments
    We have seen quite a few requests coming in from various folks asking for some guidance on best practices around working with large entity models in an Entity Framework application. The following post tries to describe the typical issues you would face...
  • ADO.NET Blog

    Clarifying the message on L2S Futures.

    • 102 Comments
    There has been a variety of responses to the post on L2S futures in the last couple of days. Let me start by saying sorry for the radio silence since the post but, as Elisa mentioned,  we posted it while at PDC and were focusing on the interactions...
  • ADO.NET Blog

    Update on LINQ to SQL and LINQ to Entities Roadmap

    • 213 Comments
    Since the release of LINQ to SQL and the Entity Framework, many questions have been raised about the future plans for the technologies and how they will relate to each other long term. During this week of PDC we are now at a point, with the announcement...
  • ADO.NET Blog

    Sybase's SQL Anywhere ADO.NET Provider Supports the ADO.NET Entity Framework!

    • 9 Comments
    Another Entity Framework-enabled ADO.NET providers post! Woohoo! It is my pleasure to announce that as part of the release of SQL Anywhere 11, Sybase iAnywhere has added Entity Framework support to their ADO.NET provider . For more information on...
  • ADO.NET Blog

    Migrating from LINQ to SQL to Entity Framework: Deferred Loading

    • 13 Comments
    Last week, we covered Eager Loading and how to migrate LINQ to SQL based code that took advantage of Eager Loading. This week, we discuss Deferred Loading. Generally speaking, queries only retrieve the objects you request, and not their related objects...
  • ADO.NET Blog

    Npgsql's ADO.NET Provider for PostgreSQL Supports the ADO.NET Entity Framework!

    • 9 Comments
    I always enjoy making announcements regarding external providers releasing their Entity Framework-enabled ADO.NET providers. It is my pleasure to announce that Npgsql has released a version 2.0 of their ADO.NET provider for PostgreSQL , which includes...
  • ADO.NET Blog

    Migrating from LINQ to SQL to Entity Framework: Eager Loading

    • 26 Comments
    Since the release of the Entity Framework, we have received a number of requests for details and best practices from customers who are looking at migrating their LINQ to SQL based applications to the Entity Framework.  In order to address this topic...
  • ADO.NET Blog

    PDC 2008 - Los Angeles, CA - Oct. 27-30

    • 2 Comments
    Microsoft's premier developer event, the Professional Developer Conference, is almost here. PDC 2008 will feature more than 160 sessions covering a wide range of topics including a number of great sessions from the ADO.NET Team, such as: Developing...
  • ADO.NET Blog

    SQLite's ADO.NET Provider Supports the ADO.NET Entity Framework!

    • 8 Comments
    I spoke too soon, or actually a little too late. Robert Simpson at Phoenix Software Solutions politely reminded me that their SQLite ADO.NET provider also supports the ADO.NET Entity Framework. For more information, see the Phoenix Software site at: ...
  • ADO.NET Blog

    Devart's New Providers Support the ADO.NET Entity Framework!

    • 22 Comments
    It is my pleasure to announce the first (to the best of my knowledge) external providers to support the ADO.NET Entity Framework! Devart (formerly Core Lab) has released a new version of their ADO.NET providers, which includes support for the Entity...
  • ADO.NET Blog

    Introducing Table-Valued Parameters - Part 1

    • 12 Comments
    Hey everyone! I am Himanshu. I am a program manager in the ADO.Net team. Today I am going to talk about Table-Valued parameters that are new in SQL Server 2008. About 4 years back I was writing an application which involved adding metadata about my music...
  • ADO.NET Blog

    Entity Framework RTM Breaking Changes

    • 13 Comments
    There were a number of changes to the Entity Framework and the designer between Visual Studio 2008 SP1/ .NET Framework 3.5 Beta and RTM that will require updates to existing source code. These breaking changes are listed below, including the mitigation...
  • ADO.NET Blog

    Updated Entity Framework Samples for RTM

    • 10 Comments
    We have just updated a number of Entity Framework samples, including two sample providers, to work with the .NET Framework 3.5 and Visual Studio 2008 SP1 released today. Most updates were cosmetic, but there are some major changes too. EFQuerySamples...
  • ADO.NET Blog

    What's new in the VS 2008 SP1?

    • 11 Comments
    Visual Studio 2008 SP1 introduces significant new functionality as ADO.NET expands and evolves to change the way that we program against data. Between the Visual Studio 200 SP1 beta and RTM , there are a number of fixes and even a few new things to be...
  • ADO.NET Blog

    Third Party Provider Support for the Entity Framework RTM

    • 8 Comments
    Today we announced the release of the ADO.NET Entity Framework and ADO.NET Data Services in the Visual Studio 2008 SP1 and the .NET Framework 3.5 SP1. With this release, many database providers have pledged support for the Entity Framework. To date, 12...
  • ADO.NET Blog

    RTM is Finally Here!

    • 9 Comments
    The Entity Framework and the Entity Designer have Released! Today marks the official RTM of Visual Studio 2008 SP1 and the .NET Framework 3.5 SP1, and we are thrilled to announce the official RTM of the ADO.NET Entity Framework, the ADO.NET Entity Designer...
  • ADO.NET Blog

    Update Model – a Question of Identity – Part 2 of 3

    • 7 Comments
    This article is Part 2 of 3 – please see http://blogs.msdn.com/adonet/archive/2008/07/21/update-model-a-question-of-identity-part-1-of-3.aspx for Part 1. In the last article I explained the principle that the C-side updates would be non-destructive...
  • ADO.NET Blog

    Update Model – a Question of Identity – Part 1 of 3

    • 6 Comments
    I propose to explain the reason behind some of the oddities of the “Update Model from Database” functionality and hopefully answer some common questions that come up about it. Before I get started let me note that this will be a fairly technical post...
  • ADO.NET Blog

    EDM Tools | Options (Part 4 of 4)

    • 2 Comments
    Introduction In parts one , two and three of this four-part series, we discussed the file differences between EDMX & csdl, ssdl & msl files, we looked at the model & code generation APIs available in the .Net Runtime, and we looked at the...
  • ADO.NET Blog

    EDM Tools | Options (Part 3 of 4)

    • 7 Comments
    Introduction In parts one and two of this four-part series, we discussed the file differences between EDMX & csdl, ssdl & msl files, and we looked at the model & code generation APIs available in the .Net Runtime. In Part three, we discuss...
  • ADO.NET Blog

    New sample provider demonstrates Oracle connectivity

    • 5 Comments
    As noted on Jaroslaw Kowalski's blog , we have released a new flavor of the ADO.NET Entity Framework sample provider. You can access the Oracle flavor of the sample provider on the Code Gallery site here . The new sample wraps System.Data.OracleClient...
  • ADO.NET Blog

    Entity Framework V2 - Transparency in the design process

    • 7 Comments
    Today marks the first day of engineering for the ADO.NET Entity Framework V2.0, and the team has been looking at various options to ensure that the design of Entity Framework V2 truly reflects the requirements of the day to day challenges that our developer...
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