在更改类的名称空间后,无法使用binaryFormatter反序列化

Question

更改我的类的命名空间后,我不能再反序列化对象.我已经实施了SerializationBinder.例:

public class TypeNameConverter : SerializationBinder
{
    public override Type BindToType(string assemblyName, string typeName)
    {
        typeName = typeName.Replace("MyOldNamespace", "MyNewNamespace");
        return Type.GetType(string.Format("{0}, {1}", typeName, assemblyName));
    }
}

BinaryFormatter bf = new BinaryFormatter();
bf.Binder = new TypeNameConverter();

我得到的例外是:

'System.Runtime.Serialization.TypeLoadExceptionHolder'无法转换为'MyNewNamespace.MyClass'类型

Answer 1

你忘了更换程序集名称:

class TypeNameConverter : SerializationBinder
{
    public override Type BindToType(string assemblyName, string typeName)
    {
        typeName = typeName.Replace("MyOldNamespace", "MyNewNamespace");
        assemblyName = assemblyName.Replace("MyOldNamespace", "MyNewNamespace");
        return Type.GetType(string.Format("{0}, {1}", typeName, assemblyName));
    }
}