动态添加元素到XML文件

我目前正在使用此代码制作XML文件，在该代码中，我创建了一个对象，每次调用该方法时该对象都会写入XML文件：

        public static void TileMapCapabilities(string title, TilePicker picker)
        {
        var dbInfo = picker.GetCapabilitiesInfo();

        TileMapObject tmo = new TileMapObject()
        {
            Title = title,
            Abstract = "",
            KeywordList = new KeywordList() {FirstLayer = ""},
            SRS = "OSGEO:41001",
            Profile = "local",
            Format = "image/png",
            BoundingBox = dbInfo.eBoundingBox,
            MapSize = dbInfo.mapSize,
            CellSize = dbInfo.cellSize,
            MaxLevel = dbInfo.level,
            Location = dbInfo.location // Not sure if this should be here. Could be practical in scenarios where the tile server is hosted locally.
        };}

它工作正常，可能看起来像这样：

<?xml version="1.0" encoding="utf-8"?>
<TileMapServicesObject xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <TileMapService>
   <Title>EivaTMS</Title>
    <Abstract>Something clever about this service</Abstract>
    <TileMaps>
      <TileMap>
        <Title>kraken.db</Title>
        <href>10.10.100.200/kraken.db?request=getcapabilities</href>
        <Profile>global-mercator</Profile>
        <SRS>OSGEO:41001</SRS>
      </TileMap>
    </TileMaps>
  </TileMapService>
</TileMapServicesObject>

现在，我要做的是创建一个XML文件，该文件描述了上面提到的那一层之上的层。换句话说，我想要一个XML文件，并对上面的每个XML文件进行简短描述。

我已经设法完成了一些工作，如果我对值进行硬编码，它将看起来像这样：

        public static void TileMapServicesCapabilities(int listBoxCount)
        {         

        TileMapServicesObject tmso = new TileMapServicesObject()
        {
            TileMapService = new TileMapService()
            {
                Title = "EivaTMS",
                Abstract = "Something clever about this service",
                TileMaps = new List<TileMap>
                {
                    new TileMap { Title = "title1", href = "http://title1/?request=getcapabilities", Profile = "global-mercator", SRS = "OSGEO:41001"},
                    new TileMap { Title = "title2", href = "http://title2/?request=getcapabilities", Profile = "global-mercator", SRS = "OSGEO:41001"},
                    new TileMap { Title = "title3", href = "http://title3/?request=getcapabilities", Profile = "global-mercator", SRS = "OSGEO:41001"}
                }
            }
        };}

产生以下输出：

<?xml version="1.0" encoding="utf-8"?>
<TileMapServicesObject xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <TileMapService>
    <Title>EivaTMS</Title>
    <Abstract>Something clever about this service</Abstract>
    <TileMaps>
      <TileMap>
        <Title>title1</Title>
        <href>http://title1/?request=getcapabilities</href>
        <Profile>global-mercator</Profile>
        <SRS>OSGEO:41001</SRS>
      </TileMap>
      <TileMap>
        <Title>title2</Title>
        <href>http://title2/?request=getcapabilities</href>
        <Profile>global-mercator</Profile>
        <SRS>OSGEO:41001</SRS>
      </TileMap>
      <TileMap>
        <Title>title3</Title>
        <href>http://title3/?request=getcapabilities</href>
        <Profile>global-mercator</Profile>
        <SRS>OSGEO:41001</SRS>
      </TileMap>
    </TileMaps>
  </TileMapService>
</TileMapServicesObject>

现在，我要做的是动态创建和添加元素。这意味着对于第一种方法创建的每个XML文件TileMapCapabilities，我都想创建一个对象并将其添加到中TileMapServicesObject。可能还值得一提的是，这些类的外观包含正在创建的对象中的信息：

    public class TileMapServicesObject
    {
        public TileMapService TileMapService { get; set; }
    }

    public class TileMapService
    {
        public string Title { get; set; }
        public string Abstract { get; set; }
        public List<TileMap> TileMaps { get; set; }
    }

    public class TileMap
    {
        public string Title { get; set; }
        public string href { get; set; }
        public string Profile { get; set; }
        public string SRS { get; set; }
    }

我一直在尝试foreach循环，为要添加到服务中的每个TileMap创建一个TileMap对象，但这只是为每次迭代创建了一个新的TileMapServicesObject，而不是包含所有对象的单个文件。

关于如何解决此问题的任何提示？如果我的要求在目前的形式上过于含糊，请告诉我。

编辑：原来只是盯着它足够长时间来修复它！

这是更新的代码：

public static void TileMapServicesCapabilities()
    {
        TileMapServicesObject tmso = new TileMapServicesObject();
        List<string> pathList = new List<string>(); 
        pathList = Directory.GetFiles(path + @"Tilemaps\").ToList();
        List<TileMap> tmList = new List<TileMap>();
        TileMap tm = new TileMap();
        string title = "";
        string profile = "";
        string srs = "";

        foreach (var p in pathList)
        {
            var xRead = XDocument.Load(p);

            var xd = (from el in xRead.Descendants("TileMapObject")
                    select new 
                    {
                        Title = el.Element("Title").Value,
                        Profile = el.Element("Profile").Value,
                        SRS = el.Element("SRS").Value
                    }).SingleOrDefault();

            title = xd.Title;
            profile = xd.Profile;
            srs = xd.SRS;

            tm = new TileMap()
            {
                Title = title,
                Profile = profile,
                SRS = srs,
                href = "http://10.10.100.200/" + title + "?request=getcapabilities"
            };

            tmList.Add(tm);
        }

        tmso = new TileMapServicesObject()
        {
            TileMapService = new TileMapService()
            {
                Title = "EivaTMS",
                Abstract = "Something clever about this service",
                TileMaps = tmList
            }
        };

这给了我这个漂亮的XML文件：

    <?xml version="1.0" encoding="utf-8"?>
<TileMapServicesObject xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <TileMapService>
    <Title>EivaTMS</Title>
    <Abstract>Something clever about this service</Abstract>
    <TileMaps>
      <TileMap>
        <Title>title1</Title>
        <href>http://title1?request=getcapabilities</href>
        <Profile>local</Profile>
        <SRS>OSGEO:41001</SRS>
      </TileMap>
      <TileMap>
        <Title>title2</Title>
        <href>http://title2?request=getcapabilities</href>
        <Profile>local</Profile>
        <SRS>OSGEO:41001</SRS>
      </TileMap>
      <TileMap>
        <Title>title3</Title>
        <href>http://title3?request=getcapabilities</href>
       <Profile>local</Profile>
       <SRS>OSGEO:41001</SRS>
      </TileMap>
      <TileMap>
        <Title>title4</Title>
        <href>http://title4?request=getcapabilities</href>
        <Profile>local</Profile>
        <SRS>OSGEO:41001</SRS>
      </TileMap>
    </TileMaps>
  </TileMapService>
</TileMapServicesObject>