The model item passed into the dictionary is of type 'System.Data.Entity.DynamicProxies.Object

Question

Does anyone know why I am getting this error:

The model item passed into the dictionary is of type
system.Data.Entity.DynamicProxies.Object_3E186F803589BF82         


        

Answer 1

This code:

Move result = (from move in db.Moves
         where move.UserId == currentUserId
         select move).FirstOrDefault();
return View(result);

tries to return a single result. It's complaining that it wants a sequence of results. So you could just use:

var results = (from move in db.Moves
               where move.UserId == currentUserId
               select move).Take(1).ToList();
return View(results);

Or:

Move result = (from move in db.Moves
         where move.UserId == currentUserId
         select move).FirstOrDefault();
return View(new[] { result });

I would personally get rid of the query expression here, by the way - it's make the code more complicated than it needs to be. For example, you could rewrite my first option as:

var results = db.Moves.Where(move => move.UserId == currentUserId)
                      .Take(1)
                      .ToList();
return View(results);

Or even:

return View(db.Moves.Where(move => move.UserId == currentUserId)
              .Take(1).ToList());