XML文件读写

<?xml version=”1.0″ encoding=”utf-8″ standalone=”yes”?>

<library>

<book>

<name>笑傲江湖</name>

<name1>罪与罚</name1>

</book>

</library>

private
void button1_Click(object sender, EventArgs e)

{

OpenFileDialog op = new
OpenFileDialog();

op.Filter = “xml文件|*.xml”;

op.ShowDialog();

XDocument document = XDocument.Load( op.FileName );

XElement root = document.Root;

XElement book = root.Element(“book”);

XElement name1 = book.Element(“name”);

XElement name2 = book.Element(“name1”);

MessageBox.Show(name1.Value);

MessageBox.Show(name2.Value);

}

private
void button2_Click(object sender, EventArgs e)

{

OpenFileDialog op = new
OpenFileDialog();

op.Filter = “xml文件|*.xml”;

op.ShowDialog();

XDocument document = XDocument.Load(op.FileName);

XElement root = document.Root;

XElement book = root.Element(“book”);

XElement name1 = book.Element(“name”);

XElement name2 = book.Element(“name1”);

name1.Value = “笑傲江湖“;

name2.Value = “罪与罚“;

document.Save(op.FileName);

}