private void LoadCats() { ManualCategory cats = new ManualCategory(); cats.GetAllCatsWithNotifications(new Guid(Membership.GetUser().ProviderUserKey.ToString())); uiRadTreeViewCats.DataSource = cats.DefaultView; uiRadTreeViewCats.DataFieldID = ManualCategory.ColumnNames.ManualCategoryID; uiRadTreeViewCats.DataFieldParentID = ManualCategory.ColumnNames.ParentCategoryID; uiRadTreeViewCats.DataTextField = "DisplayName"; uiRadTreeViewCats.DataValueField = ManualCategory.ColumnNames.ManualCategoryID; uiRadTreeViewCats.DataBind(); }