title: Same table relationship in Entity Framework
body: <p>Is it possible to have an association mapping a table to itself?</p>
  
  <p>e.g. </p>
  
  <pre><code>Table:  
  ConditionId  
  ConditionName 
  ... 
  ...  
  ParentConditionId
  </code></pre>
  
  <p>where we can have many ParentConditionIds each mapping to the same ConditionId.</p>
  
  <p>I've tried a one to many mapping but I'm getting an error when there is no children.</p>