RadChartView currently supports empty values represented as null
and displays them as zeroes, otherwise said we support currently only empty point behavior Zero
We are planning to include the Drop and Gap modes from RadChart, unfortunately with the current implementation we use a single polyline segment to represent the series. We are aware of these issues and have planned the inclusion of EmptyPointBehavior, however, it will take some time to do it.
the Telerik team
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