C#

private void btnInsertHuge_Click(object sender, EventArgs e)
{
    ITransaction tx = null;
    ISession session = null;

    try
    {
        session = factory.OpenSession();
        tx = session.BeginTransaction();

        InsertHuge(session);

        tx.Commit();
    }
    catch (Exception ex)
    {
        tx.Rollback();
        throw ex;
    }
    finally
    {
        if (session != null)
            session.Close();
    }
}
...........................

private void InsertHuge(ISession session)
{
    for (int i = 0; i < 20000; i++)
    {
        Person person = new Person();
        person.LastName = i.ToString();
        person.FirstName = i.ToString();
        person.PhoneNb = i.ToString();

        Car car = new Car();
        car.LicenseNumber = i.ToString();
        car.Name = i.ToString();
        car.Owner = person;

        session.SaveOrUpdate(car);
    }
 }

<br />
if var == 1 or var == 2<br />
{<br />
//code<br />
}