在 XNA 4.0 中序列化字典
我想在 XNA 4.0 中序列化一棵树，其中每个节点在成员字典中都有由 int 索引的子节点，如下所示：
[Serializable]
public class Node
{
private Dictionary<int, Node> children;
}
我的意图是，当我序列化特定节点时，以该节点为根的所有子树都会得到连载了。 但是当我尝试测试它时，序列化字典似乎有问题，它回复错误（简化）：
System.InvalidOperationException was unhandled
Message=There was an error reflecting type 'Baddies.Node.Node'.
InnerException: System.NotSupportedException
Message=Cannot serialize member Baddies.Nodes.Node.Children of type System.Collections.Generic.Dictionary`2[[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[Baddies.Nodes.Node, Baddies, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], because it implements IDictionary.
我的问题是双重问题。首先，如果类 Dictionary 是可序列化的，这会达到我期望的效果吗？ （即序列化所有子树）。其次，我该如何序列化字典类呢？
欢迎任何和所有信息。感谢您抽出时间。
I want to serialize a tree in XNA 4.0, where each node has the children node in a member dictionary indexed by int as such:
[Serializable]
public class Node
{
private Dictionary<int, Node> children;
}
My intention is that when I serialize a specific node, all the sub-tree that has that node as root gets serialized.
But when I try to test it out, it seems to have a problem serializing the dictionary, it replies with the error (simplified):
System.InvalidOperationException was unhandled
Message=There was an error reflecting type 'Baddies.Node.Node'.
InnerException: System.NotSupportedException
Message=Cannot serialize member Baddies.Nodes.Node.Children of type System.Collections.Generic.Dictionary`2[[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[Baddies.Nodes.Node, Baddies, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], because it implements IDictionary.
My question is a double one. First, if the class Dictionary was serializable, would this do what I expect it to do? (that is, serialize all the sub-tree). Second, how do I go about serializing the dictionary class then?
Any and all information welcome. Thank you for your time.
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看来实现 IDictionary 的类型无法使用 XmlSerializer 进行开箱即用的序列化。
请阅读此处了解如何解决此问题： XML 序列化 IDictionary 类型（Hashtable、字典库等）
It appears that types that implement IDictionary cannot be serialized out of the box using XmlSerializer.
Read here on how to solve this: XML Serialize IDictionary types (Hashtable, DictionaryBase etc)