DataTable cloneDt= dt.Clone();
DataRow newDr = cloneDt.NewRow();
newDr.ItemArray = dt.Rows[i].ItemArray;
cloneDt.Rows.Add(newDr);
DataTable cloneDt= dt.Clone();
DataRow newDr = cloneDt.NewRow();
newDr.ItemArray = dt.Rows[i].ItemArray;
cloneDt.Rows.Add(newDr);