MapTipAutoPosition - how to?

[TonyBacon]

How does one set this property? I must have lapsed into stupid mode; seems it would be rather simple yet it eludes me.

[DominiqueBroux]

You have to set the attached property esri:GraphicsLayer.MapTipAutoPosition="True" to the maptip.

There is a sample here: http://resources.arcgis.com/en/help/silverlight-api/samples/start.htm#BatchGeocoding

[TonyBacon]

Thanks Dominique! I was "this" close. I hadn't realized where to put the property now I see it attaches to the UIElement it will control.