MapTip from multiple feature layers

Question

Not sure if this is possible; figured I'd toss it out here in case someone had an idea for me.

I have two feature layers that are optional in the map; they may or may not be present.  If they are present, I would like to be able to let the user hover the mouse over a feature in feature layer 1, then show certain attributes from that feature as well as related data from feature layer 2 in a MapTip.

Any ideas?

Thanks in advance,

Mike

MikeDuppong · Answer

Thanks Dominique - I've seen that example, and unfortunately that's not what I'm after.  I need to display data from more than one feature layer in a single MapTip.

Per original post: "show certain attributes from that feature as well as related data from feature layer 2 in a MapTip"

DominiqueBroux · Answer

I'm going to guess that I'll have to hook into a mouse event and when it slows to a certain point, find the nearest feature from layer 1, then fire off an async call to get the associated data from layer 2, then display it. ?

The easier way to get maptips is to set the Maptip property of the FeatureLayers.

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

(the maptip is set in XAML but the same thing can be made by code).

MikeDuppong · Answer

I realize that multiple feature layers can be handled, each with MapTips; however I'm uncertain as to how to perform the procedure I have indicated.

I'm going to guess that I'll have to hook into a mouse event and when it slows to a certain point, find the nearest feature from layer 1, then fire off an async call to get the associated data from layer 2, then display it.  ?