ASP.NET AJAX模态弹出扩展器响应计时器上的服务器代码

I have a modal popup extender tied to a asp:panel control that I want to show when the timer on an asp:updatepanel reloads executes the tick method. The tick method calls another method that checks for specific conditions and if all the conditions are met, I call:I have a modal popup extender tied to a asp:pan