I am a little unsure what you mean.
We have two charting solutions - the old RadChart (in the Charting.dll) and the new RadChartView (Chart.dll). The new RadChartView is actually a set of controls - RadCartesianChart, RadPolarChart, RadPieChart, ChartDataSource. We suggest you do not start using the old control and completely remove the Charting.dll reference. The new chart view has a much better performance, it is easy to set up and is very flexible.
The new chart has only Gap mode support for the empty values - empty points are not displayed at all, a gap is left where such values occur. See our online example here
. Let us know how if you need more information.
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