Possible Duplicate:
ObjectContext vs DbContext
What is the difference between DBContext and Object context in Entity Framework? Do they differ only in properties or they have any other significant difference?
Possible Duplicate:
ObjectContext vs DbContext
What is the difference between DBContext and Object context in Entity Framework? Do they differ only in properties or they have any other significant difference?
ObjectContext for EF v4.0 and when using a designer generated model and DbContext with for a EF v4.1 code first model.
Altough they are pretty much the samen, DbContext requires a lot less code for the same kind of functionality.