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Gets or sets the custom display unit value for the value axis.
This property returns the displayed unit value when DisplayUnit is set to Custom. The value is from 0 through 10E307.
double DisplayUnitCustom { get; set; }
Property DisplayUnitCustom As Double
IChart chart = worksheet.Shapes.AddChart(ChartType.ColumnClustered, 20, 20, 300, 200).Chart;
IAxis axis = chart.Axes.Item(AxisType.Value, AxisGroup.Primary);
axis.DisplayUnit = DisplayUnit.Custom;
axis.DisplayUnitCustom = 1000d;
double displayUnitCustom = axis.DisplayUnitCustom;