IObservableMap<K, V>::add_MapChanged method

Adds an event handler for the MapChanged event.

Syntax

HRESULT add_MapChanged(
  [in]          MapChangedEventHandler<K, V> *handler,
  [out, retval] EventRegistrationToken       *token
);

Parameters

• handler [in]
  Type: MapChangedEventHandler<K, V>*

  An event handler that receives a IMapChangedEventArgs(K) object containing data that describes the event.

• token [out, retval]
  Type: EventRegistrationToken*

  A token that identifies the registered event handler.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

See also

IMapChangedEventArgs(K)

IObservableMap<K, V>