This example shows multilevel labels in the chart axis. We can add layers of labels to the axis using start and end range values.
In this example, you can see how to group axis labels based on ranges by using ChartMultiLevelLabels. You can customize the text in each level by using ChartAxisMultiLevelLabelBorder, and ChartAxisMultiLevelLabelTextStyle.
Axis labels in each level can be arranged smartly using the Overflow property. Its values and their behaviors are:
More information about the multiple level labels can be found in this documentation section.