protected void m_combo_SelectedIndexChanged(object sender, EventArgs e)
{
// Tell the parent control that we may have changed the selected item so it can
// enable or disable the Apply and Preview buttons based on the selection.
int index = m_combo.SelectedIndex;
int hvo = 0; // we need a dummy hvo value to pass since IntChooserBEditControl
//displays 'yes' or 'no' which have no hvo
OnValueChanged(sender, new FwObjectSelectionEventArgs(hvo, index));
}