private void btnMoveDown_Click(object sender, RoutedEventArgs e) {
if (QATControls.SelectedIndex != QATControls.Items.Count - 1) {
int sel = QATControls.SelectedIndex;
Object oItem = QATControls.Items.GetItemAt(sel);
QATControls.Items.RemoveAt(sel);
QATControls.Items.Insert(sel + 1, oItem);
QATControls.SelectedIndex = QATControls.Items.IndexOf(oItem);
QATControls.ScrollIntoView(QATControls.SelectedItem);
}
}