void m_goToNamespaces_Click(object sender, RoutedEventArgs e)
        {
            NamespaceDialog2 nd     = new NamespaceDialog2(ns_to_write);
            bool?            result = nd.ShowDialog();

            if (result.Value == true)
            {
                ns_to_write = nd.ns_to_write;
            }
        }
 void m_goToNamespaces_Click(object sender, RoutedEventArgs e)
 {
     NamespaceDialog2 nd = new NamespaceDialog2(ns_to_write);
     bool? result = nd.ShowDialog();
     if (result.Value == true) { ns_to_write = nd.ns_to_write; }
 }