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Linq To XML's core class XElement, one XElement represents a node, new XElement("Order"), creates a named Order Label, call Add to add child nodes, which is also an XElement object!
The following are several common forms of LINQ operating XML.
///Write file (generate node properties)
XElement ePersons = new XElement("Persons"); XElement ptom = new XElement("Person"); //增加一个Person节点 ptom.Add(new XElement("Name", "Tom"));//在ptom下再增加子节点 ptom.Add(new XElement("Age", "18")); ePersons.Add(ptom);
XElement pjack = new XElement("Person"); pjack.Add(new XElement("Name", "Jack")); pjack.Add(new XElement("Age", "20")); ePersons.Add(pjack);
Final generation:
Tom 18 Jack 20
///Write file (generate attributesNature)
XElement ptom = new XElement("Person"); ptom.Add(new XAttribute("Name", "tom"));//添加XAttribute就生成属性 ptom.Add(new XAttribute("Age", "18")); ePersons.Add(ptom); XElement pjack = new XElement("Person"); pjack.Add(new XAttribute("Name", "jack")); pjack.Add(new XAttribute("Age", "20")); ePersons.Add(pjack);
Final generation:
<span style="color: #0000ff;"><</span><span style="color: #800000;">Persons</span><span style="color: #0000ff;">></span><br><span style="color: #0000ff;"><</span><span style="color: #800000;">Person </span><span style="color: #ff0000;">Name</span><span style="color: #0000ff;">="tom"</span><span style="color: #ff0000;"> Age</span><span style="color: #0000ff;">="18"</span><span style="color: #0000ff;">/></span><br><span style="color: #0000ff;"><</span><span style="color: #800000;">Person </span><span style="color: #ff0000;">Name</span><span style="color: #0000ff;">="jack"</span><span style="color: #ff0000;"> Age</span><span style="color: #0000ff;">="20"</span><span style="color: #0000ff;">/></span><br><span style="color: #0000ff;"></</span><span style="color: #800000;">Persons</span><span style="color: #0000ff;">></span>
//Read XML and read the value of node format
XDocument xd= XDocument.Load("XML文件地址"); foreach (XElement item in xd.Root.Descendants("Person"))//得到每一个Person节点,得到这个节点再取他的Name的这个节点的值 { Console.WriteLine(item.Element("Age").Value);//Person的节点的下得节点为Name的 } 注释:doc.root(得到根节点的XElement对象).XElement(“tagname”)方法得到的就是节点下第一个名字为tagname的节点。 如果doc.root。XElements(复数形式)就是得到所有的子节点,Descendants("“tagname”")子孙节点
//Read XML and read the value of attribute format
XDocument xd= XDocument.Load(@"D:\Program Files\Demo\Demo\ConsoleApplication2\XMLFile2.xml"); foreach (XElement item in xd.Root.Descendants("Person"))//得到每一个Person节点,得到这个节点再取他的Name的这个节点的值 { Console.WriteLine(item.Attribute("Age").Value);//Person的节点的下得节点为Name的 }
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