C1SiteMap supports binding to all kinds of hierarchical datasources. This sample shows that you can bind to C1SiteMapDataSource, SiteMapDataSource, XMLDataSource, etc. You can also binding to a hierarchical datasource programatically by setting the DataSource property.

At the server side, you can listen to the NodeDataBound event to do some changes once the node get databound.

At design time, you can use C1SiteMapDataSource control to add a new site map file, or edit exising site map files.