字典XML序列化 [英] Dictionary XML Serialization

问题描述

我有一个类与字典属性我想序列化。我读过，序列化字典是不可能的，所以我序列化/反序列化一个列表，然后转换为字典。它工作，但我想知道是否有一个正确的方法这样做。

I have a class with a dictionary attribute I want to serialize. I've read that serializing a dictionary isn't directly possible so I serialize/deserialize a list I then transform to a dictionary. It works, but i would like to know if there is a proper way to do this.

[Serializable]
public class Album
{

    private List<Photo> photos = new List<Photo>();
    [XmlArray]
    public List<Photo> Photos
    {
        get { return photos; }
        set
        {
            photos = value;
        }
    }

    private Dictionary<string, Photo> dicoPhotos = new Dictionary<string, Photo>();
    [XmlIgnore]
    public Dictionary<string, Photo> DicoPhotos
    {
        get { return dicoPhotos; }
        set { dicoPhotos = value; }
    }


    public void fillPhotosDictionnary()
    {
        this.dicoPhotos = this.photos.ToDictionary(p => p.Nom, p => p);
    }
}

我试图填充照片的字典

推荐答案

我建议利用 DataContractSerializer 及其关联属性（ DataContract 和 DataMember ）。它在.NET 3.0 +中可用。

I'd suggest leveraging the DataContractSerializer and its associated attributes (DataContract and DataMember). Its available in .NET 3.0+.

它非常类似于 XmlSerializer ，但我发现它更好的一般序列化。此外，它支持字典< TKey，TValue> 的开箱即用序列化。

Its very similar to the XmlSerializer, but I've found that its much better at general serialization. Also, it supports serialization of Dictionary<TKey, TValue> out of the box.

是一个简单的物质，你可以将一些属性切换到适当的DataContract，然后使用DataContractSerializer而不是XmlSerializer。

In your case it should be a simple enough matter to switch some of your attributes to the appropriate DataContract ones, and then use a DataContractSerializer instead of an XmlSerializer.

最后输出将基本上

[DataContract(Name = "Album", Namespace = "DataContracts")]
public class Album
{
    [DataMember(Name = "DicoPhotos")]
    private Dictionary<string, Photo> dicoPhotos = new Dictionary<string, Photo>();
    public Dictionary<string, Photo> DicoPhotos
    {
        get { return dicoPhotos; }
        set { dicoPhotos = value; }
    }
}

DataContractSerializer有一些技巧和陷阱：

There are some tricks and traps around the DataContractSerializer:

• 确保它知道您正在序列化的类型列表。


• 具有适当的名称和命名空间（以保护自己免受属性名称和命名空间更改的影响）。

如果您仅针对非永久性目的（即通过电汇）进行序列化，请考虑使用NetDataContractSerializer。如果你坚持任何类型的永久构造（如磁盘/数据库），不要使用这个，或者你可能以后会有严重的头痛（由于它的序列化方式）。

If you're only serializing for non-persistent purposes (i.e. across the wire transfers), consider using the NetDataContractSerializer. Do NOT use this if you are persisting to any sort of permanent construct (like disk/database), or you'll probably have a serious headache later (due to the way it serializes).

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