Summary:
The refresh tag declares a refresh task, indicating an update of the screen and device context as specified by the setvar tags, for example. User-visible side effects of the state changes (e.g. a change in the screen display) occur during the processing of the refresh task.

Attributes:

Name	Data type	Mandatory	Default	Description
id	String	X		A unique name for the tag within the deck
class	String	X		A name of a class of which the tag is a member

Nested tags:
<setvar>