Parent Object: ListItem Defined in namespace "adsk::core" and the header file is <Core/UserInterface/ListItem.h>
Description
Gets or sets whether this item is selected. If the item is being displayed as a check box, this controls whether it is checked or not. If it's a drop-down list or button row it controls whether this is the single selected item. Setting a drop-down list, button row item, or radio button from a group to be selected will unselect the currently selected item. For a standard list, this will get or set the single item currently selected. For a separator, setting this property is ignored and it will always return false.