ChartSection object
Represents a collection of trend line used to track trends in a data series graphically.
For this collection, the Add (Method) creates and adds a fact-bound reference line. The FactIndex is the index of the fact in the Fact array (1 for axis-bound reference lines). Axis – should be passed for axis-bound reference lines and for Scatter/Bubble charts.
This example shows how to add a trend line using the fact index value for Amount Sales:
ActiveDocument.Sections["Chart"].TrendLines.Add(1)
Add(FactNameOrIndex as value, [optional] axis as BqChartAxisType), Item (Index as number), Remove (Index as number), RemoveAll
Read only: Count as Number
TrendLine object