ChartSeries.DataDefinition Property
Formula defining the series. For example, "=A1:A5". Start with an "=" sign to enter a formula. Note that if the Series doesn't have a formula and only values (for example {1,2,3}), this property will be null and the result will be in DataValues
Syntax
Namespace: FlexCel.Core
public String DataDefinition { get; set; }