Returns or sets the number of tick marks displayed on the X-axis.
This example shows how to display a tick mark for every value on the X-axis:
ActiveDocument.Sections["AllChart"].LabelsAxis.XAxis.TickmarkFrequency=1 ActiveDocument.Sections["AllChart"].LabelsAxis.XAxis.ShowTickmarks=true
This example shows how to display a tick mark for every other value on the X-axis: