To change the line thickness or color for a contour line, change the Thickness and Color properties of the Chart3DLineStyle object. For example, the following statements change the second contour line to a green line:
C1Chart3D1.ChartGroups(0).Contour.Levels(1).Style.LineStyle.Color = Color.Green
•C#
C1Chart3D1.ChartGroups[0].Contour.Levels[1].Style.LineStyle.Color = Color.Green;
To revert to the default contour style behavior, invoke the Reset method. All contour styles will be reset to their default values.