title: EF Code First NotMapped Attribute?
body: <p>I have properties on my POCOs like the following that allow me to easily access identifying criteria that a user will be able to associate an entity record with for use in my auditing and validation code...</p>
  
  <p>Sometime the Identifer is a simple concatenation of 2 or more scalar fields, and sometimes it has code in it to retrieve and concatenate properties on a Navigation Reference.</p>
  
  <p>I don't need to store this data with each entity in the DB, BUT I do want to be able to access it thru the DbEntityEntry, I tried decorating it with [NotMapped] but then it is not accessible on my entity ?</p>
  
  <pre><code>    [Identifer]
      public string Identifer 
      {
          get { return HRContact.Identifer; }
          set { }
      }
  </code></pre>
  
  <p>Anyone know how to accomplish this ?</p>
  
  <p>Thanks
  Greg</p>