using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Xml;

public partial class LoadXML : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        string xml = "<order id='001'>";

        xml +="<product>";

        xml +="<name>手机</name>";

        xml +="<quantity>10</quantity>";

        xml +="<price>2000</price>";

        xml +="</product>";

        xml += "</order>";

        XmlDocument xmlDoc = new XmlDocument();

        //使用变量xml中保存在XML字符串信息

        xmlDoc.LoadXml(xml);

        //显示根元素  使用Response对象的Write（）方法输出  所以特殊标记需要使用实体引用

        string output="&lt;"+xmlDoc.DocumentElement.Name;

        output = "&nbsp;" + xmlDoc.DocumentElement.Attributes[0].Name + "=&quot;" + xmlDoc.DocumentElement.Attributes[0].Value + "&quot;&gt;";

        //获取根元素的第一个子元素<product>的所有子节点

        XmlNodeList nodes = xmlDoc.DocumentElement.FirstChild.ChildNodes;

        //output += "&lt;" + xmlDoc.GetElementsByTagName("order") + "&gt;";

        var node = xmlDoc.GetElementsByTagName("order");

        //output += "&lt;" + node.ParentNode.Name + "&gt;";

        for (int i = 0; i <node.Count; i++)

        {

            output += "&lt;" + node[i].Name;

            output +="&nbsp;"+node[i].Attributes[0].Name+"=&quot;"+node[i].Attributes[0].Value+"&quot;";

            output +="&gt;<br/>";

            for (var j = 0; j < node[i].ChildNodes.Count; j++)

            {

                output += "&nbsp;&nbsp;&nbsp;&nbsp;";

                output += "&lt;" + node[i].ChildNodes[j].Name + "&gt;";

                output += node[i].ChildNodes[j].ChildNodes[0].Value;

                output += "&lt;/" + node[i].ChildNodes[j].Name + "&gt;";

                output += "<br/>";

            }

            //output += "&lt;" + node.ChildNodes[i].FirstChild.ChildNodes[0].Name + "&gt;" + "<br/>";

            //output += "&lt;/" + node.ChildNodes[i].Name + "&gt;" + "<br/>";

        }

        Response.Write(output);

    }

}