| Type | Description | |||
| Long | A long expression that indicates the delay used by the control when a new group is selected. The valid values are 0 to 100. 0 means no scrolling. |
By default, the DelayScroll property is 50. Use the DelayScroll property to stop scrolling groups when the selection is changed. The control fires the ExpandGroup event when user clicks the group's caption. The Expanded property specifies whether the group is expanded or collapsed. When a group is collapsed, it shows no items. When the group is expanded, all visible items are shown. Use the BackColorList property to specify the background color for the group's list. Use the BackColor property to specify the background color for the group's caption. Use the AllowScroll property to specify whether the group is scrolled smoothly until all items are visible when the user clicks the group's caption.