By default, the ShowSelection property is true, The ShowSelection property specifies whether the selection is shown or hidden. The FaceTreeSelectionChanged / FaceTreeValueChanged event notifies your application once the user selects a new item. The Value property indicates the value of the selected item/column. The Caption property indicates the caption or the text being shown at the selected item/column.The FullRowSelect property specifies whether the selection is shown on single or all columns. The SelectItem property specifies the index of the item being selected. The SelectColumn property specifies the index of the column being selected. The SelBackColor property specifies  the visual appearance of selected cell/item. The SelForeColor property specifies  the foreground color of selected cell/item.