I'm using RadCartesianChart with a HorizontalAxis of DateTimeContinuousAxis and VerticalAxis of LineSeries. I have ~130,000 points with Value = double? and Category = DateTime. The issue I am having is that I cannot zoom in far enough to show the individual points. I have tried setting PanAndZoomBehavior.DragToZoomThreshold = 0.1; but that does not help. The zoom appears to be limited elsewhere. Thanks for your help.