BasicNoUIObjOnSynchronizing Method

protected virtual void OnSynchronizing(
	SynchronizingEventArgs e
)

Protected Overridable Sub OnSynchronizing ( 
	e As SynchronizingEventArgs
)

protected:
virtual void OnSynchronizing(
	SynchronizingEventArgs^ e
)

Parameters

e  SynchronizingEventArgs

A SynchronizingEventArgs that contains the event data.

Raising an event invokes the event handler through a delegate.

The OnSynchronizing method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnSynchronizing in a derived class, be sure to call the base class's OnSynchronizing method so that registered delegates receive the event.

Reference