public long?AddDeviceOwner(ViewDeviceOwner v, Guid userId)
{
Trace.Assert(_db != null);
Trace.Assert(v != null);
ObjectResult <long?> result = _db.AddDeviceOwner(
v.FirstName, v.LastName, v.Company, v.Apartament, v.Building, v.Street, v.City,
v.State, v.Country, v.ZipCode, v.EMail, v.Phone, v.Cell, userId);
Trace.Assert(result != null);
IEnumerator <long?> resultList = result.GetEnumerator();
Trace.Assert(resultList != null);
resultList.MoveNext();
long?id = resultList.Current;
resultList.Dispose(); // for transaction to be able to complete
return(id);
}