c# 将字典序列化为 xml 文件

Question

我正在编写一个 Windows 商店应用程序，它涉及将 Xml 文件序列化到字典中，反之亦然。使用 List<> 和 ObservableCollection<>，我可以这样做来读取 XML 文件：单词 Class

public class word
{
    [XmlElement("key")]
    public string words { get; set; }
    [XmlElement("value")]
    public string value { get; set; }
}

阅读Class

using System.IO;
using Windows.Storage;
using System.Xml.Serialization;
using System.Collections.ObjectModel;

ObservableCollection<word> Words = new ObservableCollection<word>;
    public async void Load()
        {
            StorageFolder localFolder = Windows.Storage.KnownFolders.MusicLibrary;
            StorageFile file = await localFolder.GetFileAsync("dictionary.xml");
            XmlSerializer serializer = new XmlSerializer(typeof(ObservableCollection<word>));
            using (Stream stream = await file.OpenStreamForReadAsync())
            {
                ObservableCollection<word> list = serializer.Deserialize(stream) as ObservableCollection<word>;
                foreach (var c in list)
                {
                    Words.Add(c);
                }
            }
        }

但是Dictionary<>有一对TKey和TValue，导致上面的代码无法使用。无论如何修复上面的代码以适合 Dictionary<>？感谢您的帮助。

Answer 1

您需要将每个项目转换为不是 KeyValuePair 的对象。我使用像这样的简单 class 来序列化字典，可以轻松修改它以支持 ConcurrentDictionay 或 ObservableCollection。

static public class XmlDictionarySerializer<A, B>
{
    public class Item
    {
        public A Key { get; set; }
        public B Value { get; set; }
    }

    static public void Serialize(IDictionary<A, B> dictionary, string filePath)
    {
        List<Item> itemList = new List<Item>();
        foreach (A key in dictionary.Keys)
        {
            itemList.Add(new Item() { Key = key, Value = dictionary[key] });
        }

        XmlDataSerializer.Serialize<List<Item>>(itemList, filePath);
    }

    static public Dictionary<A, B> DeserializeDictionary(string filePath)
    {
        Dictionary<A, B> dictionary = new Dictionary<A, B>();
        List<Item> itemList = XmlDataSerializer.Deserialize<List<Item>>(filePath);
        foreach (Item item in itemList)
        {
            dictionary.Add(item.Key, item.Value);
        }
        return dictionary;
    }
}

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