Custom Cluster

[TomWang]

I need to identify like say "My Favorite City". For example, there are three Class Breaks based on "POP1990". There is another field in City Feature Class" called "City Type". If City Type is "FavoriteCity", I'd like to add a new symbol but still keep "MySmallMarkerSymbol", "MyMediumMarkerSymbol" and "MyLargeMarkerSymbol". I have tried to add a graphic layer but I can't find an event to listen when this cluster rendering finished.

[JenniferNery]

In the SDK sample, http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#CustomClusterer, OnCreateGraphic is when the Symbol and Attributes for the clustered graphic is created. You can add any attribute here if they are shared by the same cluster.