Default orientation of the tooltip's arrow. The default value is NChartTooltipArrowOrientation.Bottom.
The default arrow orientation is the orientation tooltip uses if it's far from plot area borders. If it's close to border and AlwaysInPlotArea is set to true, it's arrow orientation is automatically changed to keep tooltip inside the plot area.

NChartTooltipArrowOrientation DefaultArrowOrientation { get; set; }

Property DefaultArrowOrientation As NChartTooltipArrowOrientation
	Get
	Set

property NChartTooltipArrowOrientation DefaultArrowOrientation {
	NChartTooltipArrowOrientation get ();
	void set (NChartTooltipArrowOrientation value);
}