I'm sorry, but I don't quite understand your question. Could you, please, clarify what you need to show? Are you talking about just UK boundaries (like it is done for USA here http://demos.telerik.com/silverlight/#Map/Shapefile/UnitedStates
), or do you need to show full UK map, but without Northern Ireland? The first thing can be implemented if you have KML or shape file for UK. You should edit it end remove correspondent polygons. The second thing can't be done with Bing and OSM map providers.
the Telerik team
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