public void AddChartStyle(Graphics g)
{
// Draw ChartArea and PlotArea:
Pen aPen = new Pen (ChartBorderColor, 1f);
SolidBrush aBrush = new SolidBrush (ChartBackColor);
g.FillRectangle (aBrush, ChartArea);
g.DrawRectangle (aPen, ChartArea);
aPen = new Pen (PlotBorderColor, 1f);
aBrush = new SolidBrush (PlotBackColor);
g.FillRectangle (aBrush, PlotArea);
g.DrawRectangle (aPen, PlotArea);
aPen.Dispose ();
aBrush.Dispose ();
}