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ADO.NET team blog
The EF Team Wants to Hear from You!
Posted
5 hours ago
by
dpblogs
0
Comments
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...
ADO.NET team blog
EF Feature CTP4: DbContext & Databases
Posted
Thu, Sep 2 2010
by
dpblogs
12
Comments
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...
ADO.NET team blog
Performance Considerations when using TPT (Table per Type) Inheritance in the Entity Framework
Posted
Tue, Aug 17 2010
by
dpblogs
10
Comments
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...
ADO.NET team blog
Absolute Beginners Guide to Entity Framework
Posted
Mon, Jul 19 2010
by
dpblogs
14
Comments
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...
ADO.NET team blog
EF Feature CTP4 Walkthrough: Code First
Posted
Wed, Jul 14 2010
by
dpblogs
52
Comments
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...
ADO.NET team blog
EF Feature CTP4 Walkthrough: Productivity Improvements
Posted
Wed, Jul 14 2010
by
dpblogs
25
Comments
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...
ADO.NET team blog
EF Feature CTP4 Released!
Posted
Wed, Jul 14 2010
by
dpblogs
38
Comments
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...
ADO.NET team blog
Performance Impact of Server-side Generated GUIDs in EF
Posted
Mon, Jun 28 2010
by
dpblogs
4
Comments
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...
ADO.NET team blog
TechEd North America – Sessions Online Now!
Posted
Wed, Jun 23 2010
by
dpblogs
0
Comments
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...
ADO.NET team blog
Remember to re-enable MARS in your SQL Azure based EF apps
Posted
Wed, Jun 9 2010
by
dpblogs
0
Comments
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...
ADO.NET team blog
Testability in EF4
Posted
Tue, Jun 8 2010
by
dpblogs
2
Comments
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.
ADO.NET team blog
Working with Sets of Self-Tracking Entities
Posted
Wed, Jun 2 2010
by
dpblogs
2
Comments
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...
ADO.NET team blog
Microsoft SQL Server has a new connectivity portal page!
Posted
Thu, May 27 2010
by
dpblogs
0
Comments
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...
ADO.NET team blog
Using Binary Serialization and ViewState with Self-Tracking Entities
Posted
Wed, May 26 2010
by
dpblogs
5
Comments
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...
ADO.NET team blog
EF4 Sample Provider for SQL Server now available
Posted
Tue, May 25 2010
by
dpblogs
1
Comments
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...
ADO.NET team blog
Exception Handling in the .NET Framework Data Provider for ODBC, OLE DB, and for SQL Server
Posted
Mon, May 24 2010
by
dpblogs
0
Comments
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...
ADO.NET team blog
Self-Tracking Entities in Silverlight
Posted
Fri, May 14 2010
by
dpblogs
13
Comments
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...
ADO.NET team blog
ADO.NET Survey Results
Posted
Tue, May 11 2010
by
dpblogs
2
Comments
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...
ADO.NET team blog
Improvements to Generated SQL in .NET 4.0
Posted
Mon, May 10 2010
by
dpblogs
4
Comments
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...
ADO.NET team blog
Return Type Shape Sensing for Stored Procedures
Posted
Fri, Apr 30 2010
by
dpblogs
0
Comments
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...
ADO.NET team blog
SqlClient Default Protocol Order
Posted
Sun, Apr 18 2010
by
dpblogs
2
Comments
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...
ADO.NET team blog
Entity Framework and LINQ to SQL: Additional programming patterns in EF4
Posted
Fri, Mar 19 2010
by
dpblogs
10
Comments
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. ...
ADO.NET team blog
Updated Data Model Designer Extension Starter Kit
Posted
Fri, Mar 5 2010
by
dpblogs
0
Comments
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
ADO.NET team blog
Entity Framework POCO Template updated for Visual Studio 2010 Release Candidate
Posted
Thu, Feb 18 2010
by
dpblogs
24
Comments
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...
ADO.NET team blog
Entity Framework Feature CTP 3 Now Available
Posted
Thu, Feb 18 2010
by
dpblogs
16
Comments
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...
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