多几行代码就不能进入调试，而且现在查询不出数据。

xiaoqiuwyh 2008-11-24 09:38:56

一个信息的查询显示，在前台页面是这样写的：



//取得数据列表

        function GetListData(CurrentIndex){

            var objXmlDoc = "<root><record><Flag>GetMsgList</Flag>";

          

            //检索条件构造

            var objCondtions = "";

            var objselectType = GetddlValue("selectType");

            var objtxtStartDate = GettxtValue("txtStartDate");

            var objtxtEndDate = GettxtValue("txtEndDate");

           

            objCondtions += ("<Nodes>" + CurrentIndex + "</Nodes>");//取得当前页

            

            objCondtions += ("<Nodes>" + objselectType + "</Nodes>");//收发类别            

            objCondtions += ("<Nodes>" + objtxtStartDate + "</Nodes>");//查询的开始日期

            objCondtions += ("<Nodes>" + objtxtEndDate + "</Nodes>");//查询的结束日期

           

            objXmlDoc += (objCondtions + "<Return></Return></record></root>");

            

            var objTotalCount = 0;//总记录数

            var objTotalPage = 0; //总页数



            var objResult = SendHttp(objXmlDoc, "ASNRequest.aspx");

            if(objResult != null && objResult.length > 0){

                document.getElementById('divList').innerHTML = objResult.split('|')[0];

                objTotalCount = objResult.split('|')[1];

                objTotalPage = objResult.split('|')[2];

                if(objTotalPage <= 0)

                    CurrentIndex = 0;

                document.getElementById('spanIndex').innerHTML = "【当前页: " + CurrentIndex + "/"+ objTotalPage +"    总记录数: "+ objTotalCount +"】";

                

                document.getElementById('hidCurrentIndex').value = CurrentIndex;

                document.getElementById('hidTotalCount').value = objTotalPage;

            } else {

                document.getElementById('divList').innerHTML = "没有检索到相关数据...";

                document.getElementById('spanIndex').innerHTML = "【当前页: 0/0    总记录数: 0】";

                document.getElementById('hidCurrentIndex').value = 0;

                document.getElementById('hidTotalCount').value = 0;

            }

        }

然后进入一个ajax的js文件，其中SendHttp方法为：



//数据串格式：var objXmlDoc = "<root><record><Flag>取可以区别开的字符串(例：GetAddressList)</Flag><Nodes></Nodes><Return></Return></record></root>";

function SendHttp(args, postUrl){

    var objData;

    var objXmlDoc = args;

    if(objXmlDoc == null || objXmlDoc.replace(/\s*/, "").length <= 0){

        return false;//空数据不提交

    }

    

    try{

        var objXMLHTTP = new XMLHttpRequest();

        objXMLHTTP.open("POST", postUrl, false);

        objXMLHTTP.send( objXmlDoc);

        objData = objXMLHTTP.responseText;

    } catch(e) {}

    return objData;

}

然后ASNRequest.aspx后台代码：





    XmlNode retXmlNode;//请求返回值



    protected void Page_Load(object sender, EventArgs e)

    {

        XmlDocument xmlDoc = new XmlDocument ( );



        xmlDoc.Load(Request.InputStream);

        XmlNode xmlNode = xmlDoc.SelectSingleNode("//root//record//Flag");//取标识节点

        XmlNodeList xmlNodeList = xmlDoc.SelectNodes("//root//record//Nodes");//业务节点

        retXmlNode = xmlDoc.SelectSingleNode("//root//record//Return");



        //解析

        ReadXmlDoc(xmlNode.InnerText, xmlNodeList);//把这行和下面的方法注释起来就可以进入调试，否则就无法进入调试

    }



    #region XmlDoc 解析

    /// <summary>

    /// 解析请求的Xml串, 并执行相关的业务处理

    /// </summary>

    /// <param name="flag">业务标识</param>

    /// <param name="nodes">参数</param>

    /// <returns></returns>

    private void ReadXmlDoc(string flag, XmlNodeList nodes)

    {

        string strResult = retXmlNode.InnerText;



        switch (flag)

        {

            case "IsCheckCode":

                strResult = IsCheckCode(nodes.Item(0).InnerText);

                break;

            case "GetMsgList":

                strResult = GetMsgList(nodes);

                break;

            case "DeleteMsg":

                strResult = DeleteMsg(nodes.Item(0).InnerText);

                break;

        }



        //回写数据

        Response.Charset = "gb2312";

        Response.HeaderEncoding = Encoding.GetEncoding("gb2312");

        Response.Write(strResult);

        Response.End();

    }

    #endregion