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Gets or sets what the bubble size represents on a bubble chart.
The returned value indicates whether bubble sizes are interpreted as SizeIsArea or SizeIsWidth.
SizeRepresents SizeRepresents { get; set; }
Property SizeRepresents As SizeRepresents
IChart chart = worksheet.Shapes.AddChart(ChartType.Bubble, 20, 20, 300, 200).Chart;
IChartGroup chartGroup = chart.ChartGroups[0];
chartGroup.SizeRepresents = SizeRepresents.SizeIsWidth;
SizeRepresents sizeRepresents = chartGroup.SizeRepresents;