public bool AddOrUpdate(Person p)
        {
            try
            {
                using (var context = new EmployeeContext())
                {
                    var record = context.Person.FirstOrDefault(x => x.Id == p.Id);
                    if (record != null)
                    {
                        MapperEx.MapExceptID <Person, Person>(p, ref record);
                        context.SaveChanges();
                    }
                    else
                    {
                        var newObj = MapperEx.CreateFrom <Person, Person>(p);
                        newObj.CreatedAt = DateTime.Now;
                        context.Person.Add(newObj);
                        context.SaveChanges();
                    }
                }

                return(true);
            }
            catch (Exception ex)
            {
                return(false);
            }
        }