A series that displays data as areas on a diagram, in such way that series points are connected using only horizontal and vertical lines.
@interface DXStepAreaSeries: DXAreaSeries
The following image represents the Step Area series:
Gets or sets a value specifying which line (horizontal or vertical) should be drawn first.
@property (readwrite) BOOL invertedStep
YES if vertical line should be drawn first; NO if horizontal line should be drawn first.