property Items.ItemDivider(Item as HITEM) as Long
Specifies whether the item acts like a divider or normal item.

TypeDescription
Item as HITEM A long expression that indicates the item's handle.
Long A long expression that indicates the column's index.

A divider item uses the item's client area to display a single cell. You can use the ItemDivider property to separate the items, display groups of items or display total or subtotals fields. The ItemDivider property specifies the index of the cell being displayed in the item's client area. In other words, the divider item merges the item cells into a single cell. The CellHAlignment property specifies the horizontal alignment for the cell's content. Use the ItemDividerLine property to define the line that underlines the divider item. Use the LockedItemCount property to lock items on the top or bottom side of the control. Use the MergeCells method to combine two or multiple cells in a single cell. Use the SelectableItem property to specify the user can select an item. A divider item has sense for a control with multiple columns. The SortableItem property specifies whether the item keeps its position after sorting.