/// /// server-side ALERT dialog /// summary> /// Tip information, example: "Can not be empty!" param> // / Page class param> public void alert (string str_message, point page) {page.register, page page {page.registerage, page page {page.registerage, Page Page {page.registerage > ");} Reload this warning window, enable a control to get the focus /// /// server side pop the Alert dialog box, and make the control to focus //// Get the focus control ID value, such as: txt_name param> /// Tip information, example: "Please enter your name!" param> /// Page class param> public void Alert (string str_Ctl_Name, string str_Message, Page page) {page.RegisterStartupScript ( "", "