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Votes

TrackballDetails.groupingModeInfo is null in builder callback despite being populated

When using TrackballBehavior with a custom builder callback, the trackballDetails.groupingModeInfo property becomes null when passed to a custom widget, even though it contains valid data within the builder scope itself.


Steps to Reproduce


Configure a chart with TrackballBehavior using a custom builder:

Empty

Create a custom widget that receives the TrackballDetails:

Empty


Activate the trackball by long-pressing on the chart


Expected Behavior

The trackballDetails.groupingModeInfo should retain its value when passed to the custom widget, allowing access to the points, currentPointIndices, visibleSeriesIndices, and visibleSeriesList properties.

Actual Behavior

The trackballDetails.groupingModeInfo property is null inside the custom widget, despite logging as a valid Instance of 'TrackballGroupingModeInfo' within the builder callback itself.