SelectedIndex: Number;
The SelectedIndex property determines the selected tab by index.
Only one tab can be selected in the component at the same time. Selecting a tab means opening its contents.
By default the tab with the index 0 is selected.
The user can also select a tab using the TabControl.SelectedItem property.
The example of component use is given in description of the TabControl.ItemDeselected property.
See also: