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);
           }
          }
         }