Defines the auto-scrolling behavior during drag-and-drop. When enbaled, the first scrollable container going from the TreeView and up will be scrolled when the dragged item reaches the top of that container or its bottom.
Controlls whether scrolling is enabled.
Specifies the interval (in milliseconds) in which the scrolling will be performed.
Specifies the step (in pixels) by which the scrolling will be performed.