This demo illustrates the interactive capabilities of XtraCharts, in particular, a capability to access any chart's element by hit-testing.
In this demo, after the mouse cursor crosses over a chart's element, a tooltip appears which specifies the object which has been highlighted, and shows its underlying data (if any). If there are multiple objects layered under a test-point, their hierarchy is reflected. Note that now, individual axis label items and axis titles can be accessed, as well.