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

Like Luke says this question has been asked numerous times on SO.

For a web application, per request cycle seems to work best. Singleton is definitely a bad idea.

Per request works well because one web page has a User, maybe some Projects belonging to that user, maybe some Messages for that user. You want the same ObjectContext so you can go User.Messages to get them, maybe mark some messages as read, maybe add a Project and then either commit or abandon the whole object graph at the completion of the page cycle.