::For nothing can seem foul to those that win::

 DataTable dt = db.getSQLTable(TB_sql.Text.ToString(), "dt");
                    if (dt.Rows.Count > 0)
                    {
                        DataTable new_dt = dt.Clone();
                        int i = 0;                     
                        foreach (DataRow dr in   dt.Rows)                     
                        {
                            if (i < 30)
                            {
                                new_dt.ImportRow(dr);
                            }
                            else break;
                            i++;
                        }
                     }