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<?xml version="1.0" encoding="utf-8"?><Vokabeln><v1><known>Hallo</known><unknown>Hello</unknown></v1><Config>2</Config></Vokabeln>					

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private void SaveVOK()
        {
            
            string anz = GetVoks().ToString();
            MessageBox.Show(anz);
            int intanz;
            int.TryParse(anz, out intanz);
            intanz++;
            string anz2 = intanz.ToString();
            
            XmlWriter writer =  XmlWriter.Create(Application.StartupPath + "\\Vokabeln.xml");
            
            writer.WriteStartDocument();

            writer.WriteStartElement("Vokabeln");

            writer.WriteStartElement("v"+anz);

            writer.WriteStartElement("known");
            writer.WriteString(textBox1.Text);
            writer.WriteEndElement();

            writer.WriteStartElement("unknown");
            writer.WriteString(textBox2.Text);
            writer.WriteEndElement();

            writer.WriteEndElement();

            writer.WriteStartElement("Config");
            writer.WriteString(anz2);
            writer.WriteEndElement();
            writer.WriteEndElement();
            writer.WriteEndDocument();
            writer.Close();

            MessageBox.Show("gespeichert");            
        }

        private string GetVoks()
        {
            XmlReader reader = XmlReader.Create(Application.StartupPath + "\\Vokabeln.xml");

            reader.ReadStartElement("Vokabeln");

                reader.ReadStartElement("Config");
                    string anz = reader.ReadString();
                reader.ReadEndElement();
            reader.ReadEndElement();

            reader.Close();

            string anz2 = anz.Substring(1);
            return anz2;

        }