public partial class ModelPMP : Eco.Persistence.PersistenceMapperProvider
 {
  List<string> _log = new List<string>();
  public ModelPMP() : base()
 {
  EcoListener.StartListening();
  EcoLogSwitches.LogSql = true;
  EcoListener.Singleton.OnTraceLog += new TraceLogHandler(OnTraceLog);
  this.InitializeComponent();
 }

private void OnTraceLog(object sender, TraceEventArgs e)
 {
  if (e.Category.Equals(EcoTraceCategories.Sql))
  {
   _log.Add(e.Message);
  }
}

The code above is one way to do it.

To make an ExpressionHandle load all rows in as few batches as possible, do this:

IObjectList il=(ehPerson.Element as IObjectList);
il.EnsureObjects();