title: I can't see my model classes
body: <p>I have an application in MVC4 with Razor and Entity Framework database first.I have a SQL database . Base on this I generated the diagram (edmx) with new Item "ADO.NET Entity Data Model".I choose the database connection,my tables and program has generated a diagram with tables and relationships but I can find the class that must be generated after each choosen table (in solution explorer .For a table student from database i must have the mapping with a class student in my solution ).I want to add some validations .Can somebody tell what I done wrong ?</p>