code: public void sortByErrors() {
  
          ColumnSortList columnSort = m_table.getColumnSortList();
          columnSort.clear();
          columnSort.push(m_table.getErrorColumn());
          columnSort.push(m_table.getErrorColumn());
          ColumnSortEvent.fire(m_table, columnSort);
      }
docs: Ensures that rows with errors will be placed at the top of the table.<p>