The chart's series expose a ToolTipTemplate property which you can use to define a template for each series. This property works with the ChartTooltipBehavior
. About the displaying additional properties, keep in mind that the data context passed in the tooltip template is an object of type DataPoint which contains a DataItem property. This property holds the business object behind the corresponding data point. You can use it to display additional information in the tooltip.
Here is an example:
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