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Gets or sets the shape used with the 3-D bar or column chart.
BarShape BarShape { get; set; }
Property BarShape As BarShape
IChart chart = worksheet.Shapes.AddChart(ChartType.ColumnClustered3D, 20, 20, 300, 200).Chart;
chart.BarShape = BarShape.Cylinder;
BarShape barShape = chart.BarShape;