KDTable如何添加合计行？

      /**
       * 功能：添加合计行
       *
       * @param table
       *            指定的KDTable
       * @param fields
       *            需要合计的列
       */
      public static void apendFootRow(KDTable table, String fields[]) {
       int size = fields.length;
       if (size == 0)
        return;
       Map sumValue = new HashMap();
       // 利用getRowCount的到的行可能不正确
       int count = table.getRowCount3();

       for (int i = 0; i < fields.length; i++) {
        sumValue.put(fields[i], new BigDecimal("0.00"));
       }
       IRow footRow = null;
       KDTFootManager footManager = table.getFootManager();
       if (footManager == null) {
        footManager = new KDTFootManager(table);
        footManager.addFootView();
        table.setFootManager(footManager);
       }
       // 计算所有指定行的合计值
       footRow = footManager.getFootRow(0);
       for (int i = 0; i < count; i++) {
        IRow row = table.getRow(i);
        for (int j = 0; j < fields.length; j++) {
         sumValueForCell(row, fields[j], sumValue);
        }
       }

       if (footRow == null) {
        footRow = footManager.addFootRow(0);
       }
       // 设置合计行显示样式
       String colFormat = "%{0.00}f";

       String total = EASResource.getString(FrameWorkClientUtils.strResource
         + "Msg_Total");

       table.getIndexColumn().setWidthAdjustMode(KDTIndexColumn.WIDTH_MANUAL);
       table.getIndexColumn().setWidth(30);
       footManager.addIndexText(0, total);
       footRow.getStyleAttributes().setBackground(new Color(0xf6, 0xf6, 0xbf));
       for (int i = 0; i < size; i++) {
        String colName = fields[i];
        footRow.getCell(colName).getStyleAttributes().setNumberFormat(
          colFormat);
        footRow.getCell(colName).getStyleAttributes().setHorizontalAlign(
          HorizontalAlignment.RIGHT);
        footRow.getCell(colName).getStyleAttributes().setFontColor(
          Color.black);
       }

       // 设置合计行的值
       for (int i = 0; i < fields.length; i++) {
        footRow.getCell(fields[i]).setValue(sumValue.get(fields[i]));
       }
      }

      private static void sumValueForCell(IRow row, String key, Map sumValue) {
           ICell cell = row.getCell(key);

           if (cell != null) {
            Object obj = cell.getValue();
            if (obj != null) {
             BigDecimal keyValue = (BigDecimal) sumValue.get(key);
             keyValue = keyValue.add(new BigDecimal(obj.toString()));
             sumValue.put(key, keyValue);
            }
           }
          }