C#使用LINQ to XML读取XML
示例
<?xml version="1.0" encoding="utf-8" ?> <Employees> <Employee> <EmpId>1</EmpId> <Name>Sam</Name> <Sex>Male</Sex> <Phone Type="Home">423-555-0124</Phone> <Phone Type="Work">424-555-0545</Phone> <Address> <Street>7A Cox Street</Street> <City>Acampo</City> <State>CA</State> <Zip>95220</Zip> <Country>USA</Country> </Address> </Employee> <Employee> <EmpId>2</EmpId> <Name>Lucy</Name> <Sex>Female</Sex> <Phone Type="Home">143-555-0763</Phone> <Phone Type="Work">434-555-0567</Phone> <Address> <Street>Jess Bay</Street> <City>Alta</City> <State>CA</State> <Zip>95701</Zip> <Country>USA</Country> </Address> </Employee> </Employees>
使用LINQ读取XML文件
XDocument xdocument = XDocument.Load("Employees.xml");
IEnumerable<XElement> employees = xdocument.Root.Elements();
foreach (var employee in employees)
{
Console.WriteLine(employee);
}访问单个元素
XElement xelement = XElement.Load("Employees.xml");
IEnumerable<XElement> employees = xelement.Root.Elements();
Console.WriteLine("所有员工姓名列表：");
foreach (var employee in employees)
{
Console.WriteLine(employee.Element("Name").Value);
}访问多个元素
XElement xelement = XElement.Load("Employees.xml");
IEnumerable<XElement> employees = xelement.Root.Elements();
Console.WriteLine("所有员工姓名及其ID的列表：");
foreach (var employee in employees)
{
Console.WriteLine("{0} has Employee ID {1}",
employee.Element("Name").Value,
employee.Element("EmpId").Value);
}访问具有特定属性的所有元素
XElement xelement = XElement.Load("Employees.xml");
var name = from nm in xelement.Root.Elements("Employee")
where (string)nm.Element("Sex") == "Female"
select nm;
Console.WriteLine("女员工的详细信息：");
foreach (XElement xEle in name)
Console.WriteLine(xEle);访问具有特定属性的特定元素
XElement xelement = XElement.Load("..\\..\\Employees.xml");
var homePhone = from phoneno in xelement.Root.Elements("Employee")
where (string)phoneno.Element("Phone").Attribute("Type") == "Home"
select phoneno;
Console.WriteLine("列出家庭号码");
foreach (XElement xEle in homePhone)
{
Console.WriteLine(xEle.Element("Phone").Value);
}