some years ago I remember a handy "getting started" pdf that had walkthroughs of RadGrid development,specifically I recall master-detail development (hierarchy). Is that still available somewhere?
Incidently some of the demo links are broken - http://demos.telerik.com/aspnet-ajax/errorpageresources.aspx?aspxerrorpath=/aspnet-ajax/grid/examples/hierarchy/declarative-relations/defaultcs.aspx