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Gets or sets how pictures are displayed on a column or bar picture chart.
DrawingPictureType PictureType { get; set; }
Property PictureType As DrawingPictureType
worksheet.Range["A1:B4"].Value = new object[,] {{"Category", "Value"}, {"A", 30}, {"B", 20}, {"C", 50}};
IChart chart = worksheet.Shapes.AddChart(ChartType.ColumnStacked, 20, 20, 300, 200).Chart;
chart.SeriesCollection.Add(worksheet.Range["A1:B4"]);
IPoint point = chart.SeriesCollection[0].Points[1];
point.PictureType = DrawingPictureType.Stack;
DrawingPictureType pictureType = point.PictureType;