static void BeginCountFactorial()
{
handler = new MyHandler(CountFactorial);
IAsyncResult resultObj = handler.BeginInvoke(10, new AsyncCallback(EndCountFactorial), "object for locking");
}
static void BeginCountFactorial()
{
handler = new MyHandler(CountFactorial);
IAsyncResult resultObj = handler.BeginInvoke(10, new AsyncCallback(EndCountFactorial), "object for locking");
}