Thank you for your reply Dess.I have gone through that documentation. But i am still puzzled on how to apply it for my scenario.
radTreeView1.DataSource = ckDao.GetCikListFromFileId(fileId);
radTreeView1.DisplayMember = "CikName";
radTreeView1.ValueMember = "CikId";
I was able to get parent level display correctly. But now to bring the list of children from the database i need the parent CikId to retrieve its children. I need to be able to call "GetSeriesListFromDatabase(cikId, fileId);" and set it as child member. and then invoke third level of data based on parent's series Id.
radTreeView1.ChildMember = sDao.GetSeriesListFromFileId(TxtJobNum.Text, ?? )