title: Entity Framework - Add Navigation Property Manually
body: <p>I generated an Entity Framework Model (4.0) from my database. I did not design the database and do not have any control over the schema, but there are a few tables that do not have foreign key constraints defined, but there is an implicit relationship defined.</p>
  
  <p>For example:</p>
  
  <p>I have a table called People that has the following columns:
  GenderID
  RaceID</p>
  
  <p>There are tables for both Gender and Race but there is no foreign key in the People table.</p>
  
  <p>When I imported the model it did not add Navigation Properties for these relationships. I tried to add it manually but From Role and To Role are disabled. I'm not sure how to add the relationship myself. How do I do this?</p>