修改XML文件的节点属性值

xml 文件内容:

<?xml version="1.0" encoding="utf-8"?>
<subtitles>
<info>
    <content>最新通告：五一放假七天！请各教员悉知</content>
    <speed>4</speed>
    <color>red</color>
</info>
</subtitles>

C#代码:

[csharp] view plaincopyprint?XmlDocument xml = new XmlDocument();
xml.Load(context.Server.MapPath("~/js/XMLFile.xml"));
XmlNode xn = xml.DocumentElement;
foreach (XmlNode node in xn.ChildNodes)
{
    if (node.Name == "info")
    {
        node["content"].InnerText = content;
        node["speed"].InnerText = speed;
        node["color"].InnerText = color;
    }
}
xml.Save(context.Server.MapPath("~/js/XMLFile.xml"));

            XmlDocument xml = new XmlDocument();
            xml.Load(context.Server.MapPath("~/js/XMLFile.xml"));
            XmlNode xn = xml.DocumentElement;
            foreach (XmlNode node in xn.ChildNodes)
            {
                if (node.Name == "info")
                {
                    node["content"].InnerText = content;
                    node["speed"].InnerText = speed;
                    node["color"].InnerText = color;
                }
            }
            xml.Save(context.Server.MapPath("~/js/XMLFile.xml"));

另外两种办法:

修改xml字符串的某个节点的属性值，如下：

XmlDocument doc = new XmlDocument();
doc.LoadXml("<fsdlconfig userName=\"ss\" password=\"134\"/>");

            XmlAttribute att =(XmlAttribute)doc.SelectSingleNode("/fsdlconfig/@userName");
            Console.WriteLine(att.Value);
            att.Value = "test";
            string str = doc.OuterXml;

节点userName的值由原来的"ss",变成了"test",然后用doc.OuterXml保存修改后的xml为字符串。

另一种方式：

XmlDocument doc = new XmlDocument();
doc.LoadXml("<fsdlconfig userName=\"ss\" password=\"134\"/>");

            XmlElement att = (XmlElement)doc.FirstChild;
           att.SetAttribute("userName","test");
            string str = doc.OuterXml;

补充：Web开发 , 其他 ,