The backend processes the returned results of confirm.

Protected   Void Button#click ( Object Sender, eventargs E)
{
// Whether to continue when the confirm box is displayed
Response. Write ( String . Format ( " <SCRIPT> If (confirm ('continue or not! ') {0 }}else {1 }}</SCRIPT> " , Writestr (), cancel ()));
}

private static string writestr ()
{< br> return " alert ('OK') " ;< BR >}

Private Static StringCancel ()
{
Return "Alert ('canceled ')";
}

//Based on the frontend feedback of background processing results

Based on the frontend feedback of background processing results