Frame.NavigationStopped 事件  
定义
重要
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public:
 virtual event NavigationStoppedEventHandler ^ NavigationStopped;
	// Register
event_token NavigationStopped(NavigationStoppedEventHandler const& handler) const;
// Revoke with event_token
void NavigationStopped(event_token const* cookie) const;
// Revoke with event_revoker
Frame::NavigationStopped_revoker NavigationStopped(auto_revoke_t, NavigationStoppedEventHandler const& handler) const;
	public event NavigationStoppedEventHandler NavigationStopped;
	function onNavigationStopped(eventArgs) { /* Your code */ }
frame.addEventListener("navigationstopped", onNavigationStopped);
frame.removeEventListener("navigationstopped", onNavigationStopped);
- or -
frame.onnavigationstopped = onNavigationStopped;
	Public Custom Event NavigationStopped As NavigationStoppedEventHandler 
	<Frame NavigationStopped="eventhandler" />