This sample is to show how to add the scroll bar to legend.

You will want to add the scroll bar to legend when items overlap the legend box.

ā—¸Layout
<Legend position="right" useVisibleCheck="true" enableFilter="true" 
		direction="vertical" labelPlacement="right" markerWidth="12" 
		markerHeight="12" width="110" height="130" verticalScrollPolicy="on"/>