In this video, Patrick shows how you can display multiple values within a tooltip for a visual. He walks through the DAX measure and also shows some pitfalls to look out for when it comes to filter context.

DAX Sample Statement:

Color Tooltip =
var itemcount = DISTINCTCOUNT(StockItem[Color])


IF(itemcount > 3,
CONCATENATEX(TOPN(3,VALUES(StockItem[Color])),StockItem[Color],”,”)&” and more…”,
CALCULATE(CONCATENATEX(VALUES(StockItem[Color]), StockItem[Color], “, “))