How to add Vertical and Horizontal scrollbars to a CListBox

Hi,
I need to add Vertical and Horizontal scrollbars to a CListBox. I have checked Horizontal scroll and Vertical scroll in the properties of Listbox control , but it doesn't work. I also tried with m_AvailableList.ShowScrollBar(SB_BOTH); But this doesn't work..


Can I know how to add vertical and horizontal scrollbars to ListBox control.

Thanks in advance.
Venkat