I recursively want to display xml nodes. But unfortunately it doesn't work. The output is only the first element of the xml file. Why?\[code\]public string GetOutline(int indentLevel, XmlNode xnod){ StringBuilder result = new StringBuilder(); XmlNode xnodWorking; result = result.AppendLine(new string('-', indentLevel * 2) + xnod.Name); if (xnod.NodeType == XmlNodeType.Element) { if (xnod.HasChildNodes) { xnodWorking = xnod.FirstChild; while (xnodWorking != null) { GetOutline(indentLevel + 1, xnodWorking); xnodWorking = xnodWorking.NextSibling; } } } return result.ToString();}\[/code\]Here the code calling the function. The XML file begins with \[code\]<Videos>\[/code\] then \[code\]<Video>\[/code\]... etc... \[code\]private void button2_Click(object sender, EventArgs e){ SaveFileDialog fDialog = new SaveFileDialog(); fDialog.Title = "Save XML File"; fDialog.FileName = "drzewo.xml"; fDialog.CheckFileExists = false; fDialog.InitialDirectory = @"C:\Users\Piotrek\Desktop"; if (fDialog.ShowDialog() == DialogResult.OK) { using (var newXmlFile = File.Create(fDialog.FileName)); { string xmlTree = fDialog.FileName.ToString(); XmlDocument xdoc = new XmlDocument(); xdoc.Load(XML); XmlNode xnodDE = xdoc.DocumentElement; textBox2.Text = GetOutline(0, xnodDE); //StringBuilder result = new StringBuilder(); /* foreach (var childelement in xdoc.DescendantNodes().OfType<XElement>() .Select(x => x.Name).Distinct()) { result.Append(childelement + Environment.NewLine ); } textBox2.Text = result.ToString(); */ using (StreamWriter sw = File.AppendText(xmlTree)) { sw.Write(textBox2.Text); } }}\[/code\]XML content : \[code\]<Videos> <Video> <Title>The Distinguished Gentleman</Title> <Director>Jonathan Lynn</Director> <Actors> <Actor>Eddie Murphy</Actor> <Actor>Lane Smith</Actor> <Actor>Sheryl Lee Ralph</Actor> <Actor>Joe Don Baker</Actor> </Actors> <Length>112 Minutes</Length> <Format>DVD</Format> <Rating>R</Rating> </Video> <Video> <Title>Her Alibi</Title> <Director>Bruce Beresford</Director> <Length>94 Mins</Length> <Format>DVD</Format> <Rating>PG-13</Rating> </Video></Videos>\[/code\]