動態添加元素到XML文件

Question

我目前正在使用這段代碼創建一個XML文件，我創建了一個對象，每次調用該方法時都會寫入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，它可能看起來像這樣：

<?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>

現在，我想要做的是創建一個XML文件，該文件描述了上面提到的層之上的層。 換句話說，我想要一個XML文件，其中簡要描述了我上面提到的每個XML文件。

我已經設法做了一些工作，如果我在值中硬編碼，它將如下所示：

        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"}
                }
            }
        };}

哪個產生這個輸出：

<?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>

現在，我想要做的是動態創建和添加元素。 這意味着對於我通過第一個方法TileMapCapabilities創建的每個XML文件，我想創建一個對象並將其添加到TileMapServicesObject 。 也許值得一提的是類看起來如何包含正在創建的對象中的信息：

    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; }
    }

我一直在嘗試使用foreach循環為我添加到服務的每個TileMap創建一個TileMap對象，但這只是為每次迭代創建了一個新的TileMapServicesObject，而不是包含所有對象的單個文件。

我可以解決這個問題的任何提示？ 如果我的請求在當前形式中過於含糊，請告訴我。

---

編輯：結果只是盯着它足夠長的固定它！

這是更新的代碼：

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
            }
        };

這給了我這個漂亮的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>

Answer 1

好吧，我設法在幾個小時后盯着它來修復這個！

事實證明，我可以創建一個foreach（），在其中迭代我想要讀取的所有文件，創建一個TileMap對象並將其添加到List中，然后在foreach（）之后寫入XML。 我用我的新代碼更新了OP。