return valueElem.getTextString();
String value = valueElem.getTextString(); if (value == null) { value = ""; } return value;
    public Object getValue(int row, String column) throws DataSetException    {        assertValidRowIndex(row);        Element rowElem = _rows[row];        try        {            Element valueElem = rowElem.getElementAt(getColumnIndex(column) + 1);            if (valueElem.getName().equals("value"))            {                return valueElem.getTextString();            }            else if (valueElem.getName().equals("null"))            {                return null;            }            else if (valueElem.getName().equals("none"))            {                return NO_VALUE;            }            throw new DataSetException("Unknown element type: <" +                    valueElem.getName() + ">");        }        catch (IndexOutOfBoundsException e)        {            return NO_VALUE;        }    }