public void removeEventListener(string eventName, Action <object> handler)
{
Tuple <string, Action <object> > key = new Tuple <string, Action <object> >(eventName, handler);
if (_eventNameAndHandlerToHtmlEventProxy != null && _eventNameAndHandlerToHtmlEventProxy.ContainsKey(key))
{
INTERNAL_EventsHelper.DetachEvent(eventName, _domElementRef, _eventNameAndHandlerToHtmlEventProxy[key], handler);
}
//else do nothing.
}
private void UnsubscribeFromHtmlChangeEvent()
{
if (this._changeEventProxy == null)
{
return;
}
INTERNAL_EventsHelper.DetachEvent(
"change",
this._nativeComboBoxDomElement,
this._changeEventProxy,
(Action <object>) this.DomSelectionChanged);
}