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Gets or sets how to plot the sparkline when the data on which it is based is in a square-shaped range.
The returned SparklineRowCol value indicates whether the source data is plotted by rows, by columns, or is not treated as a square-shaped range.
SparklineRowCol PlotBy { get; set; }
Property PlotBy As SparklineRowCol
worksheet.Range["A1:C3"].Value = new object[,] {
{1, 3, 2},
{2, 4, 1},
{3, 2, 5}
};
ISparklineGroup group = worksheet.Range["D1:D3"].SparklineGroups.Add(SparkType.Line, "A1:C3");
group.PlotBy = SparklineRowCol.RowsSquare;
SparklineRowCol plotBy = group.PlotBy;