Question

我正在尝试在循环访问observablecollection时写入xml文件。然后我想将格式化的xml传递给我的模型，让它写入xml文件。以下是我到目前为止的情况：

       public void SaveXml(string path)
    {
        XElement xml;
        foreach (var item in Cards)
        {
            xml = new XElement("Card",
                    new XAttribute("name", item.Name),
                    new XElement("Type", item.Type),
                    new XElement("Image",
                    new XAttribute("path", item.Image)),
                    new XElement("Usage", item.Usage),
                    new XElement("Quantity", item.Quantity),
                    new XElement("Sell", item.Sell)
                    );
        }
        Game.Model.Deck decks = new Game.Model.Deck();
        //decks.SaveXml("writetest.xml", xml);

这样，XML文件将替换为每个新节点..如何将其添加到同一个xml xelement中以创建要发送到我的模型的节点列表？

提前致谢！

Answer 1

这是我用于将ObservableCollection（在别处更新）保存到.xml文件的确切代码：

ObservableCollection<Item> items;
items = (ObservableCollection<Item>)MainWindow.mcv.SourceCollection;
XmlSerializer serializer = new XmlSerializer(typeof(ObservableCollection<Item>));
TextWriter textWriter = new StreamWriter(@"items.xml");
serializer.Serialize(textWriter, items);
textWriter.Close();

Answer 2

你必须定义一个XML根元素来添加所有Card元素 - 这样的东西会起作用：

  public void SaveXml(string path)
  {
    XElement root = new XElement("Cards");
    foreach (var item in Cards)
    {
      var xml = new XElement("Card",
                 new XAttribute("name", item.Name),
                 new XElement("Type", item.Type),
                 new XElement("Image",
                 new XAttribute("path", item.Image)),
                 new XElement("Usage", item.Usage),
                 new XElement("Quantity", item.Quantity),
                 new XElement("Sell", item.Sell)
                );
      root.Add(xml);
    }
    root.Save(path);
    Game.Model.Deck decks = new Game.Model.Deck();
    //decks.SaveXml("writetest.xml", root);

Answer 3

你可以让它变得更短更简单：

var elements = Cards.Select(card => new XElement("Card" /* etc etc */));
var doc = new XDocument(elements);
Game.Model.Deck decks = new Game.Model.Deck();
decks.SaveXml("writetest.xml", doc);

从ObservableCollection中的项创建XML

3 个答案: