title: Modify Model in MVC 5 EF5 after find function
body: <p>I need after loading the data from a model, automatically insert an information on a property of this type which do not come from the DB.</p>
  
  <p>Exemple:</p>
  
  <pre><code>namespace project.Models
  {
      using System;
      using System.Collections.Generic;
      using System.ComponentModel.DataAnnotations;
      using System.ComponentModel.DataAnnotations.Schema;
      using System.Data.Entity;
  
      public partial class MessageSource
      {
          public MessageSource()
          {
              this.messages = new HashSet&lt;Message&gt;();
          }
  
          public int id { get; set; }
          public string category { get; set; }
          public string message { get; set; }
  
          public string message_translation { get; set; }
  
          public virtual ICollection&lt;Message&gt; messages { get; set; }
      }
  }
  </code></pre>
  
  <p>id, category and message are DB table properties, message_translation no, after loading this model, always I will need to put automatically information in message_translation. How?</p>