C# 把内容写入xml文件

CIOSOFT 2012-01-08 03:59:01

xml文件格式
<?xml version="1.0" encoding="gb2312"?>
<pics>
<subject pic="xx.jpg" link ="url" />
</pics>
如何方式，增加内容如
<?xml version="1.0" encoding="gb2312"?>
<pics>
<subject pic="新写入.jpg" link ="新写入url" />
<subject pic="xx.jpg" link ="url" />
</pics>

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LMAOhuaNL 2012-01-08

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[Quote=引用 3 楼 dalmeeme 的回复:]

如果要确保插入在最前面，可以用
C# code
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(Server.MapPath("~/test.xml"));
XmlElement newElement = xmlDoc.CreateElement("subject");
n……
[/Quote]
这个，经常用的

wklilong 2012-01-08

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XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(Server.MapPath("~/test.xml"));
XmlElement newElement = xmlDoc.CreateElement("subject");
newElement.SetAttribute("pic", "新写入.jpg");
newElement.SetAttribute("link", "新url");
xmlDoc.DocumentElement.InsertBefore(newElement, xmlDoc.DocumentElement.ChildNodes[0]);
xmlDoc.Save(Server.MapPath("~/test.xml"));

jiangshun 2012-01-08

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            string path = @"c:\test.xml";

            XDocument document = XDocument.Load(path);

            document.Element("pics").AddFirst(new XElement("subject",

                new XAttribute("pic", "新写入.jpg"),

                new XAttribute("link", "新写入url")));



            document.Save(path);

dalmeeme 2012-01-08

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如果要确保插入在最前面，可以用

		XmlDocument xmlDoc = new XmlDocument();

		xmlDoc.Load(Server.MapPath("~/test.xml"));

		XmlElement newElement = xmlDoc.CreateElement("subject");

		newElement.SetAttribute("pic", "新写入.jpg");

		newElement.SetAttribute("link", "新url");

		xmlDoc.DocumentElement.InsertBefore(newElement, xmlDoc.DocumentElement.ChildNodes[0]);

		xmlDoc.Save(Server.MapPath("~/test.xml"));

hwzhong20 2012-01-08

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XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load("xml文件路径");
XmlNodeList subjectNodeList = xmlDoc.SelectNodes("subject");
XmlNode subjectNode = null;
for (int i = 0; i < subjectNodeList.Count; i += 1)
{
if (subjectNodeList[i].Attributes["pic"].InnerText == "xx.jpg")
{
subjectNode = subjectNodeList[i];
}
}

XmlNode newSubjectNode = xmlDoc.CreateElement("subject");
xmlDoc.InsertAfter(newSubjectNode, subjectNode);

dalmeeme 2012-01-08

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		XmlDocument xmlDoc = new XmlDocument();

		xmlDoc.Load(Server.MapPath("~/test.xml"));

		XmlElement newElement = xmlDoc.CreateElement("subject");

		newElement.SetAttribute("pic", "新写入.jpg");

		newElement.SetAttribute("link", "新url");

		xmlDoc.DocumentElement.AppendChild(newElement);

		xmlDoc.Save(Server.MapPath("~/test.xml"));