Radchart drilldown problem

[Devi]

Hi,
            I am using radchart in my project.To drill down the chart i wrote some codings in the click event.I saw in u r drilldowndemo to disable the chart alick event u use the remove handler method.But in my project i cant get this remove handler method only removed control method is available.
             What is the problem is this? I am using  Asp.net 2.0 and my radcontrols verion Net2  2.0.0.8  .Is this problem due to version problem or any other problem.
  How can i solve this problem?
Please  Give me  a solution immediately...

Thanks,
Regards
Devipriya