正如您在对问题的评论中推测的那样 SerializationSurrogate 和 SerializationBinder 可以让您成为其中的一部分。鉴于您只对几个属性感兴趣，您可以反序列化为代理类，您可以通过枚举传递给您的 SerializationSurrogate 的 SerializationInfo 来填充该代理类。不幸的是，它只会让你走上一段路。
问题是访问属性不会触发序列化对象中的任何副作用，因为您仅使用 SerializationSurrogate 访问数据 - 没有执行任何二进制代码。下面的快速和肮脏的测试代码说明了这个问题：
namespace BinaryProxy
{
using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
[Serializable]
class TestClass
{
public bool mvalue;
public TestClass(bool value)
{
BoolValue = value;
}
public bool BoolValue
{
get
{
// won't happen
SideEffect = DateTime.Now.ToString();
return mvalue;
}
set
{
mvalue = value;
}
}
public string SideEffect { get; set; }
}
class ProxyTestClass
{
private Dictionary<string, object> data = new Dictionary<string, object>();
public Object GetData(string name)
{
if(data.ContainsKey(name))
{
return data[name];
}
return null;
}
public void SetData(string name, object value)
{
data[name] = value;
}
public IEnumerable<KeyValuePair<string, object>> Dump()
{
return data;
}
}
class SurrogateTestClassConstructor : ISerializationSurrogate
{
private ProxyTestClass mProxy;
/// <summary>
/// Populates the provided <see cref="T:System.Runtime.Serialization.SerializationInfo"/> with the data needed to serialize the object.
/// </summary>
/// <param name="obj">The object to serialize. </param>
/// <param name="info">The <see cref="T:System.Runtime.Serialization.SerializationInfo"/> to populate with data. </param>
/// <param name="context">The destination (see <see cref="T:System.Runtime.Serialization.StreamingContext"/>) for this serialization. </param>
/// <exception cref="T:System.Security.SecurityException">The caller does not have the required permission. </exception>
public void GetObjectData(object obj, SerializationInfo info, StreamingContext context)
{
throw new NotImplementedException();
}
/// <summary>
/// Populates the object using the information in the <see cref="T:System.Runtime.Serialization.SerializationInfo"/>.
/// </summary>
/// <returns>
/// The populated deserialized object.
/// </returns>
/// <param name="obj">The object to populate. </param>
/// <param name="info">The information to populate the object. </param>
/// <param name="context">The source from which the object is deserialized. </param>
/// <param name="selector">The surrogate selector where the search for a compatible surrogate begins. </param>
/// <exception cref="T:System.Security.SecurityException">The caller does not have the required permission. </exception>
public object SetObjectData(object obj, SerializationInfo info, StreamingContext context, ISurrogateSelector selector)
{
if (mProxy == null) mProxy = new ProxyTestClass();
var en = info.GetEnumerator();
while (en.MoveNext())
{
mProxy.SetData(en.Current.Name, en.Current.Value);
}
return mProxy;
}
}
sealed class DeserializeBinder : SerializationBinder
{
public override Type BindToType(string assemblyName, string typeName)
{
return typeof(ProxyTestClass);
}
}
static class Program
{
static void Main()
{
var tc = new TestClass(true);
byte[] serialized;
using (var fs = new MemoryStream())
{
var formatter = new BinaryFormatter();
formatter.Serialize(fs, tc);
serialized = fs.ToArray();
var surrSel = new SurrogateSelector();
surrSel.AddSurrogate(typeof(ProxyTestClass),
new StreamingContext(StreamingContextStates.All), new SurrogateTestClassConstructor());
using (var fs2 = new MemoryStream(serialized))
{
var formatter2 = new BinaryFormatter();
formatter2.Binder = new DeserializeBinder();
formatter2.SurrogateSelector = surrSel;
var deser = formatter2.Deserialize(fs2) as ProxyTestClass;
foreach (var c in deser.Dump())
{
Console.WriteLine("{0} = {1}", c.Key, c.Value);
}
}
}
}
}
}
在上面的示例中，TestClass'SideEffect支持字段将保持为空。
如果您不需要副作用并且只想访问某些字段的值，则该方法是可行的。否则，除了遵循 Jon Skeet 的建议之外，我想不出任何其他可行的解决方案。