TIconOptions.AutoArrange
Determines if icons in a list view are automatically rearranged when a list item is added, removed, or moved.
property AutoArrange: Boolean;
Description
Set AutoArrange to specify whether the list view object should rearrange its items whenever changes are made. If AutoArrange is True, the icons are automatically arranged. If AutoArrange is False, the icons are not arranged until the Arrange method of the list view is called.