From Porcupine wiki

Developers: dataSet Property

Sets the widget's data set. The data set consists of an array of hashtables. In order for the data to be displayed, you need to refresh the widget by calling its "refresh" method.

Syntax

Example

lst.dataSet = [
		{isSystem:true, displayName:'aaaaa', size:31230, modified:new Date(), role:2},
		{isSystem:false, displayName:'bbbb', size:1230, modified:new Date('03/31/2005 18:00:31'), role:8}
	];
lst.refresh();