Jaroslaw Kowalski

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...

I’ve migrated my blog to a new domain: http://jkowalski.com - please update your links and RSS subscriptions. In order not to duplicate content, but preserve the history I’ve created stub posts which link back to original content here and recreated...

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...

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...

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...

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...

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...

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...

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...

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...

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...

We've just posted a one-pager on transparent caching support in Entity Framework on our EFDesign blog . http://blogs.msdn.com/efdesign/archive/2008/07/09/transparent-caching-support-in-the-entity-framework.aspx We want to make sure that you will...

I was recently tagged by Danny to answer questions about my programming experience as part of a longer chain letter , so here they are: How old were you when you first started programming I was 8 (some 0x17 years ago) when I got my first computer: Timex...

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...

Ju-Yi Kuo from our team has started blogging about advanced mapping scenarios supported by Entity Framework. Part 1 of his EF Mapping Advisor series is online at http://blogs.msdn.com/juyik/archive/2008/05/21/ef-mapping-advisor-1-the-language-of-mapping...

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...

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 –...

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...

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...

Last Saturday I gave a talk at " Communities To Communities 2008 " conference in Warsaw, Poland. I presented EDM and Entity Framework to an audience of >130 people - Polish MVPs and members of .NET User Groups (because of limited seating...

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...

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...

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...