public static void PaintChart(System.Drawing.Graphics g, System.Drawing.Rectangle r, FarPoint.Win.Spread.Appearance appearance, GridElement Element)
{
ChartPainter chartPainter = Element.Value as ChartPainter;
chartPainter.UpdateDataSource();
IPainter Painter = chartPainter as IPainter;
Image image = Painter.Paint(r.Width, r.Height);
g.DrawImage(image, r.X, r.Y, r.Width, r.Height);
}