NHibernatTransactionSample.cs

public class SeeThatRepository
{
  private ISession _session;
  
  public SeeThatRepository(ISession session)
  {
    _session = session;
  }
  
  public void Save(T entity)
  {
    using (var t = _session.BeginTransaction())
    {
      _session.Save(entity);
      t.Commit();
    }
  }
  
  public void Update(T entity)
  {
    using (var t = _session.BeginTransaction())
    {
      _session.Update(entity);
      t.Commit();
    }
  }
}