Технология LINQ to XML

Пример кода: Изменение тегов:

private void button8_Click(object sender, EventArgs e)

{

XElement first = new XElement("Root",

new XElement("age", 17),

new XElement("age", 19),

new XElement("age", 15),

new XElement("age", 20));

XElement second = new XElement("Root", "ffff");

second.ReplaceAll(

from el in first.Elements()

where (int)el < 18

select new XElement("NotPass", (int)el)

);

textBox1.Text = Convert.ToString(second);

second.Save("K:\\Laba2 - BiBD\\Laba2.xml");

textBox1.Text = "\n_______До изменения________\n" + Convert.ToString(first) + "\n___________После____________\n" + Convert.ToString(second);

}