What does this method-based query provide?

[Jun Du]

Hi, This code snippet is from MSDN[^]. Can someone shed light on what this query provide? using (AdventureWorksEntities context = new AdventureWorksEntities()) { ObjectSet contacts = context.Contacts; ObjectSet orders = context.SalesOrderHeaders; var query = contacts.Join( orders, order => order.ContactID, contact => contact.Contact.ContactID, (contact, order) => new { ContactID = contact.ContactID, SalesOrderID = order.SalesOrderID, FirstName = contact.FirstName, Lastname = contact.LastName, TotalDue = order.TotalDue }); }

Thanks, Jun