An Annotation is an explanatory image or text that can be anchored to a series point, a diagram coordinate (two axis values), or an arbitrary pixel coordinate on a chart's surface.
Although annotations reside in the collection of the element to which they are anchored (chart, pane or series point), all annotations that are displayed in a chart control can be centrally accessed from its WebChartControl.AnnotationRepository property.
An annotation can be positioned either absolutely (docked to a corner of its parent container), or relatively (with a specified rotation angle and connector length to its anchor point).
The table below lists the main properties that affect the element's appearance and functionality.
Layout and Position