‘未反序列化对象时调用了OnDeserialization方法。’从哈希表反序列化

Question

我有一个哈希表，其中存储了断电后应用程序工作所需的键/值。它们使用BinaryFormatter存储到文件中。我试图通过仅将缺省值类型(如int、float、string、object等)放入哈希表来说明版本控制，但也添加了一些枚举。

有时在更新应用程序时，哈希表不能正确地反序列化。我怀疑要么是我使用的混淆程序(所有枚举都被禁止重命名符号)，要么是某个字段不知何故被添加到了我遗漏的对象中。反序列化调用：

var hashtable = new Hashtable();

                using (var stream = new FileStream(fileName, FileMode.Open))
                {
                    var formatter = new BinaryFormatter(selector, context);

                    try
                    {
                        hashtable = (Hashtable) formatter.Deserialize(stream);

为了解决这个问题，我创建了一个序列化的shown类，如下所示。在反序列化时，我得到以下SerializationException：‘在对象未被反序列化时，调用了OnDeserialization方法。’

[Serializable]
public class HashtableSerializationSurrogate : IDeserializationCallback, ISerializationSurrogate
{
    public HashtableSerializationSurrogate() : base()
    {
    }   

    private static SerializationInfo serializationInfo = null;

    void ISerializationSurrogate.GetObjectData(object obj, SerializationInfo info, StreamingContext context)
    {
        Hashtable hashtable = (Hashtable) obj;

        object[] objArray1 = new object[hashtable.Count];
        object[] objArray2 = new object[hashtable.Count];

        hashtable.Keys.CopyTo(objArray1, 0);
        hashtable.Values.CopyTo(objArray2, 0);

        // ISSUE: type reference
        info.AddValue("Version", 0, typeof(int));
        // ISSUE: type reference
        info.AddValue("Keys", objArray1, typeof(object[]));
        // ISSUE: type reference
        info.AddValue("Values", objArray2, typeof(object[]));

        // How much space to allocate to the hashtable.
        info.AddValue("HashSize", (fieldinfo.GetValue(obj) as Array).Length);

        serializationInfo = info;
    }


    private static FieldInfo fieldinfo = typeof(Hashtable).GetField("buckets", (BindingFlags) 36);

    object ISerializationSurrogate.SetObjectData(object obj, SerializationInfo info, StreamingContext context, ISurrogateSelector selector)
    {
        return obj;
    }

    void IDeserializationCallback.OnDeserialization(object sender)
    {
        var hashtable = (Hashtable)sender;
        hashtable.OnDeserialization(this);

        // Populate hash table
        object[] keys = (object[])serializationInfo.GetValue("Keys", typeof(object[]));
        object[] values = (object[])serializationInfo.GetValue("Values", typeof(object[]));

        // Add each (key,value] pair to the actual Hashtable
        for (int x = 0; x < keys.Length; x++)
            hashtable.Add(keys[x], values[x]);

        serializationInfo = null;
    }
}

我完全被困在这里了。有人知道为什么在SetObjectData调用之后抛出这个异常吗？

编辑：Stacktrace