C# XML读取修改操作

XML 读取修改操作。

 读取

XmlTextReader textReader = new XmlTextReader(Server.MapPath( "mb_Msg.xml"));

                                textReader.Read();

                                 while (textReader.Read())

                                {

                                                textReader.MoveToElement();

                                                 if (textReader.Name == "msg" )

                                                {

                                                                content.Text = textReader.ReadString();

 

                                                }

                                }

                                textReader.Close();

 

 

 

 

 

修改：

 XmlDocument xml = new XmlDocument();
        xml.Load(Server.MapPath("YG_msg.xml"));
        XmlNode msg = xml.SelectSingleNode("/root/msg");
        msg.InnerText = getstring(Request.Form["content"]);
        XmlNode user = xml.SelectSingleNode("/root/user");
        user.InnerText = getstring(Request.Form["fn_userName"]);
        XmlNode pwd = xml.SelectSingleNode("/root/pwd");
        if (getstring(Request.Form["fn_userPwd"]).Trim() != string.Empty)
        {
            pwd.InnerText = getstring(Request.Form["fn_userPwd"]);
        }
        xml.Save(Server.MapPath("YG_msg.xml"));
        FormBase.showmsg("设置成功", "success", "", "closewin('winmsg');", this);

 

 

 

 

xml:(name='mb_Msg.xml')

<?xml version=" 1.0" encoding=" utf-8" ?>

<root>

  <msg> xm 您好，这是一条回访信息，请勿回复！

  </msg>

</root>