Repeater is very minimal, it gives you total control of the rendered HTML markup, you could do in Repeater whatever you could do with DataList, but you have to do a lot of work
see
Deciding When to Use the DataGrid, DataList or Repeater
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnaspp/html/aspnet-whenusedatawebcontrols.asp