public static void UnsubscribeFrom(this IHTMLElement2 element, EventType eventType, IControlHtmlEvent handlerObj)
{
try
{
element?.detachEvent(eventType.Name(), handlerObj);
}
catch (RemotingException) { }
catch (UnauthorizedAccessException) { }
}
public static void UnsubscribeFrom(this IHTMLElement2 element, HtmlEvents eventType, HtmlEventObject eventObj)
{
try
{
element?.detachEvent(eventType.Name(), eventObj);
}
catch (RemotingException) { }
catch (UnauthorizedAccessException) { }
}
public static void UnsubscribeFrom(this IHTMLElement2 element, string @event, object pdisp)
{
try
{
element?.detachEvent(@event, pdisp);
}
catch (RemotingException) { }
catch (UnauthorizedAccessException) { }
}
/// <summary>
/// detach only once (thread safe)
/// </summary>
public void Detach()
{
lock (this) {
if (this.htmlElement != null)
{
IHTMLElement2 elem = (IHTMLElement2)htmlElement;
elem.detachEvent(this.eventName, this);
this.htmlElement = null;
}
}
}
