Implementing Repository Pattern with EF4 POCO support

About two years ago have written a post and an article in codeproject about the repository pattern implementation with EF V1. After that I got a lot of requests in my articles to make it compatible for EF4 POCO support. So here I am going to make that. In this implementation of repository, I am going to add some new methods which has helped me to regularly while working with EF4 POCO support. Hope it will be helpful to you.