默认的ColumnChart总会给列添加阴影效果

去除阴影:

<mx:ColumnChart x="30"
     y="29"
     width="710"
     height="393"
     dataProvider="{chartDP}"
     horizontalAxisRatio="3"
     fontFamily="Arial"
     fontWeight="bold"
     id="chartPageStatus"
     columnWidthRatio="0.5"
     showDataTips="true"
     dataTipFunction="col_dataTipFunction"
     seriesFilters="{null}" <!--去除阴影 or   seriesFilters="{[]}" -->
     itemClick="onClick(event)"
     creationComplete="chartinit(event)">
  <mx:verticalAxis>
   <!--<mx:CategoryAxis dataProvider="{chartDP}"/>-->
   <mx:LinearAxis interval="1"
         maximum="4"
         labelFunction="{verticalFormater}"
         baseAtZero="true"/>
  </mx:verticalAxis>
  <mx:horizontalAxis>
   <mx:LinearAxis interval="1"
         maximum="20"
         labelFunction="{horizontalFormater}"
         minorInterval="200"
         padding="0.5"
         id="h_axis"/>
  </mx:horizontalAxis>
  <mx:series>
   <mx:ColumnSeries displayName="page"
        id="col">
    <mx:fill>
     <mx:SolidColor color="#DCDCDE"/>
    </mx:fill>

   </mx:ColumnSeries>

  </mx:series>
 </mx:ColumnChart>