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private void button1_Click(object sender, EventArgs e)
{
StringBuilder sb = new StringBuilder();
StringReader sr = new StringReader(richTextBox1.Text);
XPathDocument doc = new XPathDocument(sr);
XPathNavigator nav = doc.CreateNavigator();
XPathNodeIterator iter = nav.Select("/Employees/NO1");
while (iter.MoveNext())
{
XPathNodeIterator xpthIter = iter.Current.SelectChildren(XPathNodeType.Element);
while (xpthIter.MoveNext())
{
richTextBox2.AppendText(";"+xpthIter.Current.ToString());
}
}
}