Cacher is the code snippet organizer for pro developers

 public void IgnoreNeverUpdateProperties()
        {
            var modifiedEntities =
                Context.GetObjectContext().ObjectStateManager.GetObjectStateEntries(EntityState.Modified);
            foreach (var entity in modifiedEntities)
            {
                entity.Entity.GetModelProperties()
                    .Where(x => x.GetCustomAttributes<NeverUpdateAttribute>().Any())
                    .ToList().ForEach(x => entity.RejectPropertyChanges(x.Name));
            }

        }