使用实体框架和MVVM将数据库信息从一个视图模型传递到另一个视图模型

My title doesn't justify so much what I'm trying to do. I'm fairly new to using Entity Framework so bare with me. I've got an MVVM application that uses Entity Framework 4.1, WPF and C#. I am trying to get it so that when I double click a row in from a datagrid (the grid binds to an EntitySet in my DataBase named LoanComparisons) in a view I've got called LoanListingView, it switches over to my other view (named LoanCalculatorView) passing the information in my database (EntitySet named Loans) by the information given in the row that was selected.My title doesn't justify so much what I'm tryin