Grid lines are lines that appear perpendicular with major/minor tick marks at unit major/minor intervals. The lines that are placed coincident with major tickmarks at UnitMajor intervals are controlled by the MajorGrid property. Grid lines can help improve the readability of the Chart when you are looking for exact values. The major grid lines appearances are controlled by the Chart3DGridLines properties.

To set grid lines on the XY-plane

Set the IsOnXYPlane property to true for the grid lines to appear on the XY-Plane.

To set grid lines on the XZ-plane

Set the IsOnXZPlane property to true for the grid lines to appear on the XZ-Plane.

To set grid lines on the YZ-plane

Set the IsOnYZPlane property to true for the grid lines to appear on the YZ-Plane.

Grid lines appearance

You can determine the style for the major grid lines through the Style property which returns the Chart3DLineStyle object that allows you to customize the grid lines color, pattern, or thickness.