Returns an object that represents either a single chart group (a ChartGroup object) or a collection of all the chart groups in the chart (a ChartGroups object). The returned collection includes every type of group.
expression.ChartGroups(Index)
expression Required. An expression that returns a Chart object.
Index Optional Variant. The chart group number.
Example
This example turns on up and down bars for chart group one on Chart1 and then sets their colors. The example should be run on a 2-D line chart containing two series that intersect at one or more data points.
With Charts("Chart1").ChartGroups(1)
.HasUpDownBars = True
.DownBars.Interior.ColorIndex = 3
.UpBars.Interior.ColorIndex = 5
End With