Move the current focus to the next control in a direction.
The action arguments are:
The minimum focus index to move to or -1 to have no minimum value
The maximum focus index to move to or -1 to have no maximum value
The direction to search for the next focusable control
up down left right
In order for this action to complete successfully, there must be a control whose focus index lies between the min and max values. For more information about making controls focusable and the focus operation in Storyboard, refer to the Focus section in the Execution Pipeline part of this document.