Question

asp.net修改XML节点值

因为网站幻灯片是flash读取xml里面的数据。我想在后台加一个页面编辑，修改节点的值。嗯，XML如下：
<?xml version="1.0" encoding="UTF-8" ?>
<images>
<i src="images/01.jpg" info="11" href="111"/>
<i src="images/02.jpg" info="22" href="222"/>
<i src="images/03.jpg" info="33" href="333"/>
<i src="images/04.jpg" info="44" href="444"/>
</images>
主要修改src、info、href的值，求cs代码 谢谢

Answer 1

string path = Server.MapPath("XML文件虚拟路径");
XmlDocument doc = new XmlDocument();
doc.Load(path);
XmlNodeList noList = doc.SelectNodes("/images/i");
foreach (XmlNode noItem in noList)
{
XmlAttribute src = noItem.Attributes["src"]; //其他属性也可以这么获取和设置,建议做个属性对象不为空的判断
src.InnerText = "设置的值"; //也可以用InnerXml
}

doc.Save(path);

Answer 2

using System.Xml;

XmlDocument doc = new XmlDocument();
doc.Load("XMLFile1.xml");

XmlNode scr, href, info;
//修改第一行的值
href = doc.SelectSingleNode("/images/i[1]/@href");
href.Value = "new href";
scr = doc.SelectSingleNode("/images/i[1]/@src");
scr.Value = "new scr";
info = doc.SelectSingleNode("/images/i[1]/@info");
info.Value = "new value";
//修改第二行的值
href = doc.SelectSingleNode("/images/i[2]/@href");
href.Value = "new href";
scr = doc.SelectSingleNode("/images/i[2]/@src");
scr.Value = "new scr";
info = doc.SelectSingleNode("/images/i[2]/@info");
info.Value = "new value";

doc.Save("XMLFile1.xml");

Answer 3

using System.Xml;

XmlDocument doc = new XmlDocument();
doc.Load("XMLFile1.xml");

XmlNode scr, href, info;
//修改第一行的值
href = doc.SelectSingleNode("/images/i[1]/@href");
href.Value = "new href";
scr = doc.SelectSingleNode("/images/i[1]/@src");
scr.Value = "new scr";
info = doc.SelectSingleNode("/images/i[1]/@info");
info.Value = "new value";
//修改第二行的值
href = doc.SelectSingleNode("/images/i[2]/@href");
href.Value = "new href";
scr = doc.SelectSingleNode("/images/i[2]/@src");
scr.Value = "new scr";
info = doc.SelectSingleNode("/images/i[2]/@info");
info.Value = "new value";

doc.Save("XMLFile1.xml");