xml修改

[kgxlove521]

<?xml version="1.0" encoding="utf-8"?>
<root>
<users>
<userName>abc</userName>
<userPwd>1</userPwd>
</users>
</root>
怎么修改userPwd标签里面的值？

[noway8881]

XmlDocument doc = new XmlDocument();
doc.Load("楼主的数据");
doc.SelectSingleNode("/users/userPwd").innerText = "new password";

[noway8881]

doc.SelectSingleNode("/root/users/userPwd").innerText = "new password";

[youyou2404]

        static void Main(string[] args)
        {
            string s="<?xml version=\"1.0\" encoding=\"utf-8\"?>"
                +"<root>"
                +"<users>"
                +"<userName>abc</userName>"
                +"<userPwd>1</userPwd>"
                +"</users>"
                +"</root>";
            XmlDocument dom = new XmlDocument();
            dom.LoadXml(s);
            XmlNode n = dom.SelectSingleNode("//userPwd");
            n.InnerText = "hello world";
            Console.WriteLine(dom.InnerXml );

            /*<?xml version="1.0" encoding="utf-8"?>
             * <root>
             * <users><userName>abc</userName>
             * <userPwd>hello world</userPwd>
             * </users>
             * </root>*/
            Console.Read();

        }

[jkaty]

后台
xmlwriter.WriteStartElement("你想要的名字");

[solszl]

innertext

[wanghuaide]

[Quote=引用 1 楼 noway8881 的回复:]

XmlDocument doc = new XmlDocument();
doc.Load("楼主的数据");
doc.SelectSingleNode("/users/userPwd").innerText = "new password";
[/Quote]
支持

[美丽海洋]

XmlDocument doc = new XmlDocument();
doc.Load("楼主的数据");
doc.SelectSingleNode("/users/userPwd").innerText = "new password";

也支持,就是一个不好，假如很大文件要占内存；

[wuyq11]

http://topic.csdn.net/u/20100505/21/8ad3210b-6889-4ff6-99bc-23c2c2678c4f.html

[gaoshang212]

XmlDocument doc = new XmlDocument();
doc.Load("XML地址");//或用doc.LoadXml(XML的字符串);
doc.SelectSingleNode("//users/userPwd").innerText = "新的密码";