TObservedHook.FPONotifyObservers¶

Core method to notify all observers about operations

Declaration¶

Source position: fpobserver.pp line 47

public 
procedure TObservedHook.FPONotifyObservers(ASender: TObject; 
                                          AOperation: TFPObservedOperation; 
                                          Data: Pointer);

Description¶

The FPONotifyObservers method is the central notification mechanism that calls the FPOObservedChanged method on all attached observers.

This method is used internally by all other notification methods and can be called directly for custom notification scenarios. The operation parameter specifies the type of change that occurred.

The method iterates through the observer list in reverse order to handle observers that might detach themselves during notification.

See also¶

Name	Description
AddItem	Notifies observers that an item was added
DeleteItem	Notifies observers that an item was deleted
Changed	Notifies all observers that the object has changed
CustomNotify	Sends custom notification to all observers