Page_Load 和 XmlHttp 问题

Question

例子参考
http://dotnet.aspx.cc/article/4ae836f8-ccb4-4bef-90b1-25bb1a5e6433/read.aspx

Answer 1

脚本 引用了prototype.js   
 //提交数据
    var url = '/CMail/Vote/RCP/RCP_AddVote.aspx?action=add&f='+Math.random();
    var myAjax = new Ajax.Request(
    url,
    {
    method: 'post',
    postBody: xml,
    onComplete: showResponse,
    onCreate: showLoading,
    asynchronous:true
    });
    function showResponse(originalRequest)
    {
      Element.hide('spanDataLoding');
      if(originalRequest.responseText=="-1")
      {
        alert("未登录，或已超时！");
      }
    }
    function showLoading()
    {
      Element.show('spanDataLoding');
    }    public partial class RCP_AddVote : ICS.SmsDisk.Base.CMailPageBase
    {
        private XmlDocument xmlDoc = null;        protected void Page_Load(object sender, EventArgs e)
        {
            if (!this.IsPower)
            {
                Response.Write("-1");
                return;
            }cs文件            //System.Threading.Thread.Sleep(2000);
            getPostData(HttpContext.Current);
            if (Request["action"] != null && Request["action"].ToString().ToLower() == "add")
            {
                AddDate();
            }        }

Answer 2

脚本  引用了prototype.js        
 //提交数据  
       var  url  =  '/CMail/Vote/RCP/RCP_AddVote.aspx?action=add&f='+Math.random();  
       var  myAjax  =  new  Ajax.Request(  
       url,  
       {  
       method:  'post',  
       postBody:  xml,  
       onComplete:  showResponse,  
       onCreate:  showLoading,  
       asynchronous:true  
       });  
       function  showResponse(originalRequest)  
       {  
           Element.hide('spanDataLoding');  
           if(originalRequest.responseText==  "-1  ")  
           {  
               alert(  "未登录，或已超时！  ");  
           }  
       }  
       function  showLoading()  
       {  
           Element.show('spanDataLoding');  
       }  
  cs文件        public  partial  class  RCP_AddVote  :  ICS.SmsDisk.Base.CMailPageBase  
       {  
               private  XmlDocument  xmlDoc  =  null;  
 
               protected  void  Page_Load(object  sender,  EventArgs  e)  
               {  
                       if  (!this.IsPower)  
                       {  
                               Response.Write(  "-1  ");  
                               return;  
                       }  
 
 
 
                       //System.Threading.Thread.Sleep(2000);  
                       getPostData(HttpContext.Current);  
                       if  (Request[  "action  "]  !=  null  &&  Request[  "action  "].ToString().ToLower()  ==    "add  ")  
                       {  
                               AddDate();  
                       }  
 
               }

Answer 3

自己结贴
 if(originalRequest.responseText==  "-1  ")  
           {  
               alert(  "未登录，或已超时！  ");  
           }  
引发错误