protected override void handleDataClicked(object sender, Infragistics.UltraChart.Shared.Events.ChartDataEventArgs e_)
    {
      if (ColumnClicked == null) return;

      ColumnClickedEventArgs args = new ColumnClickedEventArgs()
      {
        Eval = m_eval.InnerSeries.Where(x => x.Name.Equals(e_.ColumnLabel.ToString())).FirstOrDefault(),
        Period = m_period,
        PeriodIndex = e_.DataRow
      };

      OnColumnClicked(args);
      
    }
 protected virtual void OnColumnClicked(ColumnClickedEventArgs e_)
 {
   EventHandler<ColumnClickedEventArgs> h;
   if ((h = ColumnClicked) != null) h(this, e_);
 }