To load an array as the datapoints you would do something like this: C1Chart1.Reset() C1Chart1.ChartGroups(0).ChartData.SeriesList.AddNewSeries() Dim arr(3) As PointF arr(0) = New PointF(2, 5) arr(1) = New PointF(4, 3) arr(2) = New PointF(6, 8) arr(3) = New PointF(7, 1) C1Chart1.ChartGroups(0).ChartData...