The chartview does not have a 1:1 relation between a datapoint and a label in the axis. This is so because you can have multiple series which may have a datapoint for the same category. So, you can have a single label (category) on the axis, but there will be multiple datapoints for this category. This is why, you cannot achieve the desired effect via the chart's api only.
If you need the bars of the series to have a hover interactivity, you can easily achieve this by setting the HoverMode of the chart and the LegendSettings of the bar series to DataPointLegendSettings. This will, however, not manipulate the labels of the axis.
If you demand on having this axis-label interactivity, you need to implement it yourself. I am attaching a small project that demonstrates how to get synced bar-axislabel hover interactivity. The rest of the functionality you need you can implement in a similar manner.
The chart does not have a drag-to-select feature at this moment. You can use the selection behavior
to only click on a bar and select it. (you can use a SelectionPalette to get auto coloring). If needed, you can take a look at this sdk sample
that demonstrates how you can plug in custom drag-to-select.
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