TStringList.OnChanging property
Event triggered when the list is about to be modified.
Declaration
property OnChanging: TNotifyEvent read FOnChanging write FOnChanging;Description
OnChanging can be assigned to respond to changes that will occurred
in the list. The handler is called whenever strings will be added, moved,
modified or deleted from the list.
The Onchanging event is triggered before the modification will
take place. When the modification has happened, an OnChange event occurs.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.