Vertical Gridlines in Listview

Hi everyone, Can anyone guide me how to add vertical lines in ListView using C#. I want to add vertical lines across for column borders in ListView. If i set the gridline property to "true", vertical as well as horizontal lines will show. But i only want to show vertical lines across column header not the horizontal lines. I thimk i have to override the Paint method, but i have no clue how to do that. regards, bjb