TDeleteChartEvent
type TDeleteChartEvent = procedure(Sender:
TChartBook; Chart: TCustomChart; Var Delete: Boolean) of object;
Unit
TeeChartBook
Description
Used by TChartBool.OnDeleteChart event.
This event is called just before a chart in a TChartBook is going to be deleted per user request (clicking the Delete menu item that shows at tab popup dialog).
The Delete boolean parameter can be set to False to disallow the chart removal.