asp.net 中Ajax发送XML对象到服务器和服务器获取XML对象

<span style="font-family:SimHei;font-size:18px;">参数xml为XML格式字符串
function editDeviceParameter(xml)
{
    var rData;
     
    var xmlDom=new ActiveXObject("Microsoft.XMLDOM") 
　　xmlDom.loadXML(xml) 
    alert(xmlDom);
    $.ajax({
          async:false,
          cache:false,
          type:"POST",
          url:"../ajaxData.aspx?action=editDeviceParameter",
          dataType: 'xml',
          processData: false,
          timeout:300000,
          data:xmlDom,
          beforeSend:function(){},
          success:function(xmlDom){
             rData=unescape(xmlDom);
             
          },
          error:function(oXmlHttpReq, textStatus, errorThrown){
             alert("编辑设备参数失败!"+textStatus);
          }
    });
    
    return rData;
}
 
接收
                       XmlDocument xmlDoc = new XmlDocument();
                        xmlDoc.Load(Request.InputStream);</span>