Hi, 
 I am having the requirement that i am using updatepanel.but when i am using the update panel it is not refreshing the chart control.I saw ur solution and i am trying.But i am getting another issue that it is not identifying the fallowing from my code. 
InfoSoftGlobal.FusionCharts.EncodeDataXml 
will we get it only when we take licensed. How can I get above directive. 
thanks and regards, 
Y.Ashok