RelAttrTableTRow Class

public class RelAttrTable<TRow>
where TRow : new()

public class RequestItem
{
    public string Id;
    public string Description;
    public string ItemName;
    public string AcceptanceStatus;
    public string AcceptanceComment;
    public string ApprovalStatus;
    public string ApprovalComment;
}

var rt = new RelAttrTable<RequestItem>(Repository.GetObject("42"), "PDTec.TDM.RequestItem");

var rows = rt.GetRows();

foreach (var row in rows)
{
    Console.WriteLine(row.Id + "|" + row.ItemName + "|" + row.ApprovalStatus + "|" + row.ApprovalComment);      
}

string rowId = null;

Repository.ExecuteTransaction(() =>
{
    rows[0].Description = "Blubb";
    rows[0].AcceptanceComment = "Blarb";
    rowId = rt.AppendRow(rows[0]);
});

Console.WriteLine(rowId);      

Repository.ExecuteTransaction(() =>
{
    rt.DeleteRow(rowId);
});