Hello Jacky,
Thank you for writing.
It is not possible to specify the position of the labels for negative values in order to display them at the bottom. However, you can use the
LabelFormatting event and manipulate the BarLabelElement.
PositionOffset on a way to display the text below the element or just format them in different color.
When you have a lot of labels on the
X-axis, they can overlap each other. You can modify the CategoricalAxis.
LabelFitMode property and set it to
MultiLine or
Rotate. Thus, the label overlapping should be avoided.
As to the last question, related to tooltips for X-axis labels, currently the
RadChartView provides a tooltip interactivity with the
ChartTooltipController class and can be used to visualize arbitrary information related to a data point only.
I hope this information helps. Should you have further questions, I would be glad to help.
Regards,
Desislava
Telerik
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