private void OnPopUp_SelectionChanged(object sender, WComboSelChanged_EventArgs e)
        {
            this.Text      = e.Text;
            m_SelectedItem = e.Item;

            OnSelectedIndexChanged();
        }
        private void OnSelectionChanged()
        {
            if (m_pListBox.SelectedItem != null)
            {
                WComboSelChanged_EventArgs oArgs = new WComboSelChanged_EventArgs(m_pListBox.SelectedItem);

                if (this.SelectionChanged != null)
                {
                    this.SelectionChanged(this, oArgs);
                }
            }
        }