title: Linq to sql - delete some related records
body: <p>I´m using linq to sql and I have a lot of tables with foreign keys leading to the UserId. </p>
  
  <p>Is it possible to have some of these foreign tables cleaned upon deletion.</p>
  
  <p>For example I want the users profile (other table) to be deleted automatically with the user but not the users forum posts.</p>
  
  <p>Is this possible or do I have to handle this with code?</p>