private void RemoveUserControl()
 {
     if (m_userControl_audioType != null)
         m_grid_main.Children.Remove(m_userControl_audioType);
     m_userControl_audioType = null;
 }
 private void Select(AudioType audioType)
 {
     RemoveUserControl();
     m_userControl_audioType = new UserControl_AudioType(audioType);
     m_grid_main.SetRowColumn(m_userControl_audioType, 1, 0);
 }
 private void New()
 {
     RemoveUserControl();
     m_userControl_audioType = new UserControl_AudioType(null);
     m_grid_main.SetRowColumn(m_userControl_audioType, 1, 0);
 }