Filtering SharePoint SiteMapDatasource -

i'm using sitemapdatasource in tree view display simple hierarchical site map. need filter map shows links sites , sub sites, , not links things lists, document libraries, etc.

thanks!

without knowing more situation, possible (assuming these xml type data structures) use kind of xpath query pull , filter information? perhaps can transform via xslt? if can post things like, might give little more insight.

there always, possibility of using linq on data source...