This demo illustrates how you can customize a tooltip shown when a mouse cursor hovers over a scheduler's selected area or a selected appointment. Another option is a tooltip displayed during the appointment drag operation.
In this example a SelectionChanged client-side event triggers a tooltip display over a selected time cell area. This approach illustrates the use of ASPxClientScheduler.ShowSelectionToolTip method to display a tooltip.
A custom form that implements the required capabilities is shown instead of the default tooltip. Rounded edges effect is accomplished via the built-in functionality, other tooltip characteristics can be easily adjusted as well.