TrendType: ChartTrendType;
The TrendType property determines a type of trend line on a graph.
This example assumes that there is the Chart object of the IChart type.
Sub TrendLine;
Var
Chart: IChart;
Begin
Chart.Series.Item(0).TrendLines.Item(0).TrendType := 2 As ChartTrendType;
End Sub TrendLine;
After executing the example the type of the trend line is changed to exponential one.
See also: