Hi sir

I am developing a web application in asp.net4.0. In my application i am using nevron line chart, for historical and real-time data plotting. In this application for starting and stopping the Real-time graph plotting two asp.net button controls are used. These two button controls are placed in an update panel, and inside the start button click event i am calling the nChartcontrol_AsyncRefresh event Handler for start the real-time updation. Here i am facing one problem if i used button control with update panel then the nChartcontrol_AsyncRefresh event is not getting the focus after button click. Without update panel it is possible. I need partial page rendering so updatepanel is must otherwise page will refresh for every button click. Please help for this problem

Thanks& Regards
LIJO