Development tools : Keyboard support : Keyboard support in XUI/Page : Navigation by the tab key
  
Navigation by the tab key
To navigate the widgets by pressing the tab key, UDTT provides tabIndex for some frequently-used widgets. Use tabIndex to define the navigation order according to usage frequency.
Widget Scope (Form Widget and Anchor)
Text, Button, Combo,CheckBox, Radio, SelectList, TextArea
Anchor
Index Range. Note that:
tabIndex must be between -1~32768.
-1: never navigate to.
null: the last one to navigate to.
0: the second‑to‑last one to navigate to.
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Keyboard support in XUI/Page