A divider item uses the item's client area to display a single cell.  Use the DividerLine / DividerLineAlignment property to define the line that underlines the divider item.  The Divider property specifies the index of the cell being displayed. In other words, the divider item merges the item cells into a single cell. Use the Selectable property to specify the user can select an item. A divider item has sense for a control with multiple columns.