Overlayed gridlines

Draws the gridlines ontop of the data. May be set as ‘style’, ‘xstyle’ or ‘ystyle’ to control the axis grids independently.

sp.BarChartStyle = BarChartStyles.OverlayGrid;
sp.YAxisStyle = YAxisStyles.OverlayGrid;

The example shows a typical barchart from Tufte’s book, using white gridlines to achieve the ‘dissected’ effect he recommends.