public void AttachOnlyOneHandler(Func <Message, Message> handler)
{
if (FormatterMsgEvent != null)
{
foreach (var del in FormatterMsgEvent.GetInvocationList())
{
FormatterMsgEvent -= (Func <Message, Message>)del;
}
}
FormatterMsgEvent += handler;
}
public bool FormatterMsgEventIsSubscribed(Func <Message, Message> d)
{
return(FormatterMsgEvent.GetInvocationList().Contains(d));
}
