private void Whois_Start_button_Click(object sender, RoutedEventArgs e)
{
if (Whois_tab_control.Startparsing(new Action(SetEndWhoisParse)))
{
Whois_Cancel_button.IsEnabled = true;
Whois_Start_button.Visibility = Visibility.Collapsed;
Whois_Pause_button.Visibility = Visibility.Visible;
}
}