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  • Blog Post: Migrating from EF POCO Adapter to Entity Framework v4.0

    Now that Visual Studio 2010 and .NET Framework 4.0 have been released, users of Entity Framework can use POCO objects with Entity Framework without the need for wrapper layers such as EFPocoAdapter . Since I know a number of people are using EFPocoAdapter in their production applications and it is not...
  • Blog Post: Using EFProviderWrappers with precompiled views

    One of the users has reported a problem with using EFProviderWrappers and precompiled views together. When you pre-compile views, Entity Framework calculates a hash of metadata (which includes csdl,ssdl and msl information), stores it with the generated views and compares it later when metadata is loaded...
  • Blog Post: Tracing and Caching for Entity Framework available on MSDN Code Gallery

    We have just released a sample that shows how to extend Entity Framework in interesting ways by plugging into ADO.NET provider interface. The sample provides two extensions: EFTracingProvider – which adds the ability to log all SQL commands that are executed (similar to LINQ to SQL’s DataContext...
  • Blog Post: Entity Framework samples converted to Visual Basic

    We have recently published Visual Basic versions of our MSDN Code Gallery samples for Entity Framework v3.5SP1. The following translated samples are currently available in two languages (C# and VB) ADO.NET Entity Framework Query Samples http://code.msdn.com/EFQuerySamples Persistence Ignorance...
  • Blog Post: New posts on EF Design Blog

    I’d like to turn your attention to two blog posts on EF Design Blog about exciting new features planned for Entity Framework: Foreign Key Support – we’re introducing new type of association, which can be manipulated through references OR foreign key values available on entities themselves. We believe...
  • Blog Post: N-Tier Improvements for Entity Framework

    We have recently published an article on API changes that we want to make in next version of Entity Framework in order to enable more N-Tier scenarios. Getting this right is very important to us and we're interested in getting as much of your feedback on the proposed design as possible. Please read...
  • Blog Post: Using EF Oracle Sample Provider with EDM Designer

    Many people are asking if it is possible to use EFOracleProvider with EDM Designer in Visual Studio 2008 SP1. The answer is yes, but because the sample doesn't include a DDEX provider required for VS integration, there are certain steps that have to be run manually. I've compiled a step-by-step guide...
  • Blog Post: EF POCO Adapter updated (v1.03)

    I've just posted another round of updates to EF POCO Adapter based on feedback from users. This set of changes is focused on N-tier scenarios and detached entities (it adds missing wrappers for EF APIs and fixes behavior of existing ones). Change log: Added wrapper for ObjectContext.ApplyPropertyChanges...
  • Blog Post: EF POCO Adapter updated (v1.02)

    I've just posted updates to EF POCO Adapter (v1.02) which resolves a couple of issues spotted by users: Detached proxies (created by EFPocoContxt.CreateObject<T>) as well as proxies in the Added state were failing on property navigation. This has been fixed, and the property navigation doesn't...
  • Blog Post: Persistence Ignorance (POCO) Adapter for Entity Framework V1

    One of the limitations of Entity Framework V1 released as part of .NET Framework 3.5 SP1 and Visual Studio 2008 SP1 is lack of support for POCO entity objects. POCO stands for Plain Old CLR Object and refers to an object that does not have any persistence concerns and is not aware of persistence framework...
  • Blog Post: Sample Entity Framework Provider for Oracle

    I wanted to let you know that we have just released Sample Entity Framework Provider for Oracle on MSDN Code Gallery. http://code.msdn.com/EFOracleProvider The provider is implemented using essentially the same technique as EFSampleProvider , but targets System.Data.OracleClient instead of System.Data...
  • Blog Post: Entity Framework Sample Provider for Visual Studio 2008 SP1 Beta is Online

    We have just published an updated Sample ADO.NET Provider for Entity Framework. Changes in the provider APIs since Beta3 release: removed DbProviderServices.GetProviderManifest(DbConnection) added DbProviderServices.GetProviderManifestToken(DbConnection) completely redesigned CSDL/SSDL...
  • Blog Post: Transparent Lazy Loading for Entity Framework – part 3 – Anatomy of a Stub

    This post is a part of the series that describes EFLazyLoading library. Part 1 - Strategies for implementing lazy loading Part 2 - Implementation of EFLazyLoading Part 3 - Anatomy of a Stub In two previous articles I have introduced EFLazyLoading – a framework for lazy loading of entities on top...
  • Blog Post: Transparent Lazy Loading for Entity Framework – part 2

    This post is a part of the series that describes EFLazyLoading library. Part 1 - Strategies for implementing lazy loading Part 2 - Implementation of EFLazyLoading Part 3 - Anatomy of a Stub As I promised last time , I would like to present the result of a little experiment in implementing transparent...
  • Blog Post: Transparent Lazy Loading for Entity Framework – part 1

    This post is a part of the series that describes EFLazyLoading library. Part 1 - Strategies for implementing lazy loading Part 2 - Implementation of EFLazyLoading Part 3 - Anatomy of a Stub The first release of Entity Framework supports explicit loading. This means that if you are navigating a relationship...
  • Blog Post: Tips and Tricks for Debugging your Entity Framework Provider

    Here are some tips that may be helpful when developing and testing a data provider that supports Entity Framework: Tip #1 Validating SchemaInformation SSDL and MSL using EdmGen.exe When developing an Entity Framework provider, one of the biggest tasks is preparing a store-specific mapping for SchemaInformation...
  • Blog Post: Entity Framework Beta 2 released

    Entity Framework Beta 2 and Entity Framework Tools CTP (both compatible with Orcas Beta 2 release) are finally out. Release notes and download instructions are available at ADO.NET team' blog: http://blogs.msdn.com/adonet/archive/2007/08/27/entity-framework-beta-2-the-1st-entity-framework-tools...
  • Blog Post: Introduction

    Welcome to my little piece of blogosphere. I'm a Software Design Engineer in Test and I'm currently working on Entity Framework. My areas of expertise are: provider manifest, primitive types in EDM & support for third-party providers. I am planning to write a series of articles that will describe...
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