A collection of all the ChartGroup objects in the specified chart.
Assembly: office (in office.dll)
Each ChartGroup object represents one or more series plotted in a chart with the same format. A chart contains one or more chart groups, each chart group contains one or more series, and each series contains one or more points. For example, a single chart might contain both a line chart group, containing all the series plotted with the line chart format, and a bar chart group, containing all the series plotted with the bar chart format.