Now that Entity Framework 4.0 has shipped , the team’s working hard to add more great features for the next release. As part of this process, it’s critical that we hear your feedback, as it helps us ensure that what we build actually meets...

We recently announced the release of Feature CTP4 for the ADO.Net Entity Framework (EF). CTP4 contains a preview of new features that we are considering adding to the core framework and would like community feedback on. CTP4 builds on top of the existing...

The Entity Framework offers very rich inheritance mapping schemes for building your conceptual model. The inheritance capabilities in EF include: · TPH (Table per Hierarchy): This is the inheritance scheme where there is a single table in the database...

To someone who has used emacs or a basic text editor for programming, jumping into Visual Studio 2010 can seem like going from a Cessna to a fighter jet. That’s the experience I had last week starting out at Microsoft, and my goal with this post...

Introduction We recently announced the release of Entity Framework Feature Community Technology Preview 4 (CTP4) . Feature CTP4 contains a preview of new features that we are considering adding to the core framework in the future and would like to get...

Introduction We recently announced the release of Entity Framework Feature Community Technology Preview 4 (CTP4) . Feature CTP4 contains a preview of new features that we are considering adding to the core framework in the future and would like to get...

We’ve release an updated Entity Framework Feature Community Technology Preview (CTP) which is available for download . This is our fourth CTP and includes updates to the Code First feature along with the first preview of our Productivity Improvements...

Background EF4 supports the use of server-generated GUIDs, which has been a popular request since EF 3.5. Lee Dumond summarized his experience on how to use this feature very well. But you may find that the performance of server-generated GUIDs is not...

If you missed out on all the festivities at TechEd North America in New Orleans last week, be sure to check out www.msteched.com and catch the talks online. All week long there was a ton of excitement about the new features in Entity Framework 4.0 and...

MARS (Multiple Active Result Sets) is a feature in SQL Server / ADO.NET that allows for multiple results-sets to be streamed over a single connection; this enables for simpler programmability in many scenarios. Entity Framework leverages MARS for supporting...

We recently posted a whitepaper (written by Scott Allen) on MSDN that demonstrates ways to write testable code with EF4. You can read the article here , and if you have feedback please post it in the comments below.

Self-tracking entities have several utility methods to do things like AcceptChanges and StartTracking which work over a single entity. However, there are cases where it would be nice to be able to do similar operations but on a set of entities instead...

The Microsoft SQL Server team is working on a portal page that brings together common resources and community links for all data access providers to Microsoft SQL Server. We’d like your feedback on how useful you will find it and what else you’d...

A common question the Entity Framework team hears is how to store a set of self-tracking entities in ViewState for an ASP.NET application. There are a number of options for where to store state information in an ASP.NET and I’d recommend this article...

We are excited to share the latest revision of the Entity Framework sample provider for SQL Server. You can find in on Code Gallery here . All existing providers built for Entity Framework 3.5 will work with Entity Framework 4.0 unchanged, however some...

Developers using the .NET Framework Data Provider for ODBC, the .NET Framework Data Provider for OLE DB, or the NET Framework Data Provider for SQL Server often send feedback to Microsoft, asking for a complete list of the exceptions that a given method...

In Visual Studio 2010 and .NET 4.0, the Entity Framework team added a T4 template for generating self-tracking entities to provide an easier experience building N-tier applications that need to send entities with changes between tiers. Since we first...

A while ago, we, the core ADO.NET team, sent out a survey in order to gather your feedback about some suggestions and future ideas for our products. Now, it’s more than time to share the results with you. We had a total of 559 respondents, most from Europe...

In a previous post ( http://blogs.msdn.com/adonet/archive/2009/08/05/improvements-to-the-generated-sql-in-net-4-0-beta1.aspx ), we talked about the improvements to the quality and the readability of the SQL generated when querying using the Entity Framework...

Nihit Kaul, a Test Lead on the Entity Framework Designer team posted a great blog entry about type sensing for function imports. You can check out the full article (with tons of screenshots) here . Also check out Shyam and Chris' EF4 PDC presentation...

A while ago, someone came to me with a very interesting problem: basically, his .NET application was taking more than a minute to open a connection. After a quick look and some investigations, we found out that only Named Pipes was enabled on this individual...

In EF4 we shipped a ton of new features .  One of the primary focuses for the team in the release was making the EF4 API surface more approachable and expanding the number of patterns developers could use when writing their data access code. ...

The ADO.NET Entity Data Model Designer Extension Starter Kit has been updated to work with Visual Studio 2010 RC bits. Get the latest version here: http://code.msdn.microsoft.com/DesignerExtStartKit . - Julia Kornich, Content Publisher, Entity Framework  

A refresh of the POCO Template that is compatible with Visual Studio 2010 Release Candidate is now available in the Extension Manager of Visual Studio and through Visual Studio Gallery. For an introduction on how to use the template, please see the POCO...

Today we are releasing Entity Framework Feature CTP 3 . This updated preview addresses compatibility with Visual Studio 2010 RC for Code First (the new name for Code Only) so that users can continue to work with our code-based metadata generation feature...