public bool Update(Orders originalOrder, Orders updatedOrder)
 {
     _ctx.Entry(originalOrder).CurrentValues.SetValues(updatedOrder);
     originalOrder.Customers = updatedOrder.Customers;
     return true;
 }
 public int Insert(Orders order)
 {
     try
     {
         _ctx.Orders.Add(order);
         SaveAll();
         return order.Id;
     }
     catch (DbEntityValidationException dbEx)
     {
         foreach (var validationErrors in dbEx.EntityValidationErrors)
         {
             foreach (var validationError in validationErrors.ValidationErrors)
             {
                 Debug.Print("Property: {0} Error: {1}",
                                         validationError.PropertyName,
                                         validationError.ErrorMessage);
             }
         }
         return -1;
     }
     catch (Exception ex)
     {
         Debug.Print("******* Order insert ********" + ex);
         return -1;
     }
 }