As has been described in other articles, the xamWebMap uses shapeFiles as is its source for shape data.  While the free shapefiles you find on the internet are generally geography related, there are other file formats that can be converted to shapefile…

The map is capable of displaying complex sets of data using a variety of mechanism like choropleth maps, and distribution scales, but sometimes all you want to do is color a map element a specific color based a condition such as a Map Element property…

In the NetAdvantage WebClient: Silverlight March CTP an interesting, but somewhat hidden feature is the new Commanding framework that we have built.  The framework is based heavily on the WPF commanding framework, and can allow you to more easily implement…