public void AttachOnlyOneHandler(Func <string, string> handler)
{
lock (someEventLock) {
if (FormatterEvent != null)
{
foreach (var del in FormatterEvent.GetInvocationList())
{
FormatterEvent -= (Func <string, string>)del;
}
}
FormatterEvent += handler;
}
}
public void OnSmsReceived(string msg)
{
lock (someEventLock) {
if (MessageBox.InvokeRequired == true)
{
this?.BeginInvoke(new SmsProvider.SMSReceivedDelegate(OnSmsReceived), msg);
}
else
{
msg = FormatterEvent?.Invoke(msg) ?? msg;
MessageBox.Invoke(new Action(() => MessageBox.AppendText($"{msg}{Environment.NewLine}")));
}
}
}