Entity Framework ObjectContext re-usage

Question

I\'m learning EF now and have a question regarding the ObjectContext:

Should I create instance of ObjectContext for every query (function) when I access the database

Answer 1

Late post here by 7 months. I am currently tackling this question in my app and I'm leaning towards the @LukLed solution by creating a singleton ObjectContext for the duration of my HttpRequest. For my architecture, I have several controls that go into building a page and these controls all have their own data concerns that pull read-only data from the EF layer. It seems wasteful for them to each create and use their own ObjectContext's. Besides, there are a few situations where one control may pull data into the Context that could be reused by other controls. For instance, in my masterpage, my header at the top of the page has user information that can be reused by the other controls on the page.

My only worry is that I may pull entities into the context that will affect the queries of other controls. I haven't seen that yet but don't know if I'm asking for trouble. I guess we'll see!