Flex 4 的ComboBox下拉框滚动条Scroller(VerticalScrollBar)的thumb过小问题的解决

Flex 4 的ComboBox弹出的下拉框滚动条由于数据过多而导致thumb太小不易操作,暂可如下设置:

<s:ComboBox id = "startPage"
    width="70"
        dataProvider = "{_model.resExportStartEndPage}"
    labelField="label"
        selectedIndex = "0"
        change = "onStartPageChange(event)">
    <s:open>
        <![CDATA[
            (startPage.scroller.getChildAt(0) as ScrollerSkin).verticalScrollBar.thumb.minHeight = 20;
        ]]>
    </s:open>
</s:ComboBox>