title: EntityFramework 4.0 POCO Proxy Problem
body: <p>I see a lot of people asking a similar question, but not this exact one. I'm trying to do what I would hope would be relatively simple with POCO proxies.          </p>
  
  <pre><code>using (var context = new MyObjectContext())
  {
      context.ContextOptions.ProxyCreationEnabled = true;
  
      // this does indeed create an instance of a proxy for me...
      // something like Product_SomeBunchOfNumbersForProxy
      var newEntity = context.CreateObject&lt;MyEntity&gt;();
  
      // throws exception because newEntity is not in ObjectStateManager...why??
      context.ObjectStateManager.GetObjectStateEntry(newEntity);
  
      // ok, well I guess let's add it to the context manually...
      context.AddObject("Model.Products", newEntity);
  
      // doesn't throw an exception...I guess that's good
      var state = context.ObjectStateManager.GetObjectStateEntry(newEntity); 
  
      // prints System.Data.EntityState.Unchanged...oh...well that's not good
      Console.WriteLine(state.State);
  
      // let's try this...
      context.DetectChanges();
  
      // doesn't throw an exception...I guess that's good
      state = context.ObjectStateManager.GetObjectStateEntry(newEntity);
  
      // prints System.Data.EntityState.Unchanged...still no good...
      Console.WriteLine(state.State);
  
      // dunno, worth a shot...
      context.Refresh(RefreshMode.ClientWins);
  
      // throws exception because newEntity is not in ObjectStateManager...
      // that didn't help...
      state = context.ObjectStateManager.GetObjectStateEntry(newEntity);
  }
  </code></pre>
  
  <p>What am I doing wrong? Thanks!</p>