【转】ajax 防止用户反复提交

本文转自：http://hi.baidu.com/moonnight366/blog/item/83c19fc81bdf6d117f3e6f0f.html

可在服务器端加载方法：private void OnLoading()     {         System.Text.StringBuilder sb = new System.Text.StringBuilder();         sb.Append(" function pageLoad(){var manager = Sys.WebForms.PageRequestManager.getInstance(); ");         sb.Append(" manager.add_beginRequest(OnBeginRequest); manager.add_endRequest(OnEndRequest)} var lcPostbackElementID;");         sb.Append(" function OnBeginRequest(sender, args){ lcPostbackElementID = args.get_postBackElement().id.toLowerCase(); if (lcPostbackElementID === \"btnadwords\"){$get(\"btnAdWords\").disabled = true; $get(\"btnAdWords\").value='正在提交...';}} ");         sb.Append(" function OnEndRequest(sender, args){if (lcPostbackElementID === \"btnadwords\"){ $get(\"btnAdWords\").disabled = false; $get(\"btnAdWords\").value='确定';}}    ");

        ScriptManager.RegisterStartupScript(Page, Page.GetType(), "btnAdWords", sb.ToString(), true);     }

也可直接写在页面脚本里：<script> function pageLoad() {     var manager = Sys.WebForms.PageRequestManager.getInstance();     manager.add_beginRequest(OnBeginRequest);     manager.add_endRequest(OnEndRequest) } var lcPostbackElementID; function OnBeginRequest(sender, args) {     lcPostbackElementID = args.get_postBackElement().id.toLowerCase();     if (lcPostbackElementID === 'btnadwords')     {         $get('btnAdWords').disabled = true;         $get('btnAdWords').value='正在提交...';     } } function OnEndRequest(sender, args) {     if (lcPostbackElementID === \"btnadwords\")     {          $get('btnAdWords').disabled = false;          $get('btnAdWords').value='确定';     } } </script>

转载于:https://www.cnblogs.com/feima-lxl/archive/2008/09/24/1297575.html