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...

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...