Entity Framework Design
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Entity Framework 4
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Entity Framework Design
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Auto-Compiled LINQ Queries (Entity Framework June 2011 CTP)
When you write a LINQ to Entities query today, the Entity Framework walks over the expression tree generated by the C#/VB compiler and translates (or compiles) that into SQL. Compiling the expression tree into SQL involves some overhead though, particularly for more complex queries. In order...
30 Jun 2011
Data Binding with DbContext
The information in this post is out of date. Visit msdn.com/data/ef for the latest information on current and past releases of EF. For WPF Data Binding see http://msdn.com/data/jj574514 For WinForms Data Binding see http://msdn.com/data/jj682076 We recently announced the release...
8 Sep 2010
Productivity Improvements for the Entity Framework
Background We’ve been hearing a lot of good feedback on the recently released update to the Entity Framework in .NET 4. This release marks a significant advancement from the first release that shipped with .NET 3.5 SP1. I’m not going to spend time here talking about what’s new, but...
21 Jun 2010
Conventions for Code First
The latest preview of Code First allows you to describe a model using C# or VB.Net classes. The basic shape of the model is detected by convention and then a fluent API can be used to further refine your model. We recently posted about our plans to support Data Annotations as another way to further...
1 Jun 2010
There are currently two ways to get Entity Framework apps up and running, we call these Database First and Model First respectively. Database First has been with us since .NET 3.5 SP1, and involves reverse engineering an Entity Data Model from an existing database. Model First is new to Visual...
10 Jun 2009
N-Tier Improvements for Entity Framework
The first version of Entity Framework provides convenient ways to load, manipulate and persist objects and relationships. As with many other O/RMs, Entity Framework has a state manager that tracks every change made. Existing objects are typically loaded first from the database, later modified, and finally...
20 Nov 2008
Foreign Keys in the Conceptual and Object Models
If you are reading this, you have probably heard by now about the so called impedance mismatch between the relational world and the object world – and there are a number of concepts in the relational database that don’t translate easily to corresponding concepts supported by the object oriented paradigm...
27 Oct 2008
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