Auto-increment repeating table position in InfoPath

repeating-table-auto-increment.cs

// "my:Inhalte" --> Repeating table data


public void Projektinformationen_Changed(object sender, XmlEventArgs e)
        {
            //e.Operation property is equal to XmlOperation.Insert or XmlOperation.Delete
            XPathNavigator nav = MainDataSource.CreateNavigator();
            XPathNodeIterator iter = nav.Select("/my:meineFelder/my:Inhalte/my:Position", NamespaceManager);
            int i = 1;

            while (iter.MoveNext())
            {
                iter.Current.SetValue(i.ToString());
                i++;
            }
            i--;
            nav.SelectSingleNode("/my:meineFelder/my:maxPos", NamespaceManager).SetValue(i.ToString());
        }