学步园

获取元素属性有两个方法，XElement.Attribute() 和XElement.Attributes() 

简单举个例就知道了

// we will use this to store a reference to one of the elements in the XML tree.<br /> XElement firstParticipant; </p> <p>XDocument xDocument = new XDocument(<br /> new XElement("BookParticipants", firstParticipant =<br /> new XElement("BookParticipant",<br /> new XAttribute("type", "Author"),<br /> new XElement("FirstName", "Joe"),<br /> new XElement("LastName", "Rattz")))); </p> <p>Console.WriteLine(firstParticipant.Attribute("type").Value);  

// we will use this to store a reference to one of the elements in the XML tree.<br /> XElement firstParticipant; </p> <p>XDocument xDocument = new XDocument(<br /> new XElement("BookParticipants", firstParticipant =<br /> new XElement("BookParticipant",<br /> new XAttribute("type", "Author"),<br /> new XAttribute("experience", "first-time"),<br /> new XElement("FirstName", "Joe"),<br /> new XElement("LastName", "Rattz")))); </p> <p>foreach(XAttribute attr in firstParticipant.Attributes())<br /> {<br /> Console.WriteLine(attr);<br /> }  

输出

type="Author" 

experience="first-time" 

那么往元素上加属性有如下方法

XElement.Add() 

XElement.AddFirst() 

XElement.AddBeforeThis() 

XElement.AddAfterThis() 

删除元素属性有如下方法

XAttribute.Remove() 

更新元素属性是这样的

XElement.Attribute("someattribute").Value = "beginner"

同样的属性也有XElement.SetAttributeValue() 方法

用起来和XElement.SetElementValue是一样的,这里不举例了