Use the EnsureVisibleOnSelect property to let control ensures that selected node is visible, when user clicks the node. Use the EnsureVisibleNode method to programmatically ensure that a specified node is visible. Use the SelectNode property to select a node. The control fires the Select event when a node is selected. The SelColor property retrieves or sets a value that indicates the color used to mark the selected node. The ScrollOnEnsure property specifies a value that indicates whether the control scrolls the control's content when ensuring that a node is visible.