[flexcoders] removing items from a bubble chart

[hworke]

  Hello,

  I have a bubblechart where I use button as itemrenderer.
  Once the chart is created the same rendered items are shown
  even though the [Bindable] dataprovider is changed but the
  number of item that are shown in the chart reflects the
  change. I guess I need to remove all the existing child and
  then assign the updated dataprovider. How do I remove the
  rendered items from the bubble child?

  Regards...