XML读取

private void List_Click(object sender, RoutedEventArgs e)
        { 
            string xmlStr = getData();

            StringBuilder rtn = new StringBuilder();
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.LoadXml(xmlStr);
            XmlNodeList xmlNodeList = xmlDoc.GetElementsByTagName("root");
            foreach (XmlNode xmlNode in xmlNodeList)
            {
                //家长节点
                XmlNodeList childXmlNodes1 = xmlNode.ChildNodes;
                foreach (XmlNode childXmlNode1 in childXmlNodes1)
                {
                    if (childXmlNode1.Name == "resultInfo")
                    {
                        //成员列表
                        XmlNodeList childXmlNodes2 = childXmlNode1.ChildNodes; 
                        
                        foreach (XmlNode childXmlNode2 in childXmlNodes2)
                        {
                            if (childXmlNode2.Name == "NAME")
                            { 
                                rtn.Append(childXmlNode2.InnerText);
                            } 
                        }
                    } 
                }
            }



        }

private string getData()
        {
            return "<?xml version=\"1.0\" encoding=\"utf-8\"?>" + @"
<root>
 <resultInfo>
   <NAME>姓名</NAME>
   <SEX>性别</SEX> 
   <error_msg> 成功！或者error:xxx </error_msg>
   <remark>备注</remark>
 </resultInfo>
</root>
";
        }