why asyncRefresh event is firing at the time of page loading
<p>I developing a web application in asp.net ,in that application i am using a chart control for continuous updation of data fro database ,Here i am using one event of that chart control i.e NChartcontrol_AsyncRefresh event.Actually i want to  fire this event after a button click.But at the time of page loading the AsyncRefresh event is firing before firing the button click event. Please help me</p>

<p>Thanks&amp;Regards
LIJO THOMAS</p>
