Description donino donino 2011-10-18 14:02:23 EDT

Created attachment 205447 [details]
A simple example report using invoke scripts

When the chart interactivity "invoke script" feature is used, this kind of html code is generated by Birt Engine:

<Script>function userCallBack1318885099(evt,categoryData, valueData, valueSeriesName, legendItemText, legendItemValue, axisLabel)
  {ShowEventData(evt, categoryData, valueData, valueSeriesName, legendItemText, legendItemValue, axisLabel);
};
</Script>

If the API HTMLRenderOption.setHTMLIDNamespace(String namespace) is enabled, all html elements are namespaced except these 'userCallBack' scripts.

So in a portlet context, if several instances of a report are aggregated on a single page, using invoke scripts lead to unexpected behavior since all usercallback functions have the same name. 

userCallBack functions should be namespaced when HTMLRenderOption.setHTMLIDNamespace is used , just like other DOM elements generated.