ASP.NET Ajax postback suddenly stops on IPhone/IPad
问题 I have an Asp.Net 4.0 website/control interface that uses an update panel and some buttons. The update panel is wired to a timer that executes every 5 seconds, causing a partial postback. The buttons toggles some settings and then forces an update of the update panel through a call similar to this: var prm = Sys.WebForms.PageRequestManager.getInstance(); prm._doPostBack('<%= UpdatePanel.ClientID %>', ''); return true; The site runs fine on IE/Firefox and on Safari mobile devices (IPhone/IPad)