Extend array of points in series. Use this method to provide additional data for series. This method is called after you call NChart.ExtendData(). The points from the array returned are _added_ to the series' array of points, so series will have more data. The maximal length of data array is determined by PointsHistoryLength property of NChart.

IReadOnlyList<NChartPoint> ExtraPoints(
	INChartSeries series
)

Function ExtraPoints ( 
	series As INChartSeries
) As IReadOnlyList(Of NChartPoint)

IReadOnlyList<NChartPoint^>^ ExtraPoints(
	[InAttribute] INChartSeries^ series
)