使用 DataContractSerializer 忽略嵌套类型

Question

我在 C# 中有一个 class，我正尝试使用 DataContractSerializer 对其进行序列化。它看起来像这样：

namespace Foo
{
    [DataContract(Name = "Bar")]
    class Bar
    {
        class A
        {
            public A(object a, object b, object c)
            {
                d = a;
                e = b;
                f = c;
            }
            public object d;
            public object e;
            public object f;
        }

        [DataMember]
        private ArrayList lst = new ArrayList();
        ...
    }
}

当我尝试序列化此 class 时，出现错误：

"System.Runtime.Serialization.SerializationException: Type 'Foo.Bar+A' with data contract name '...' is not expected. Consider using a DataContractResolver if you are using DataContractSerializer or add any types not known statically to the list of known types."

我想做的是忽略A。它只是一个类型的定义。 None 我尝试序列化的 DataMembers 是 A 类型。

编辑：这是序列化代码。

public void Serialize()
{
    var writer = new FileStream("testoutput.xml", FileMode.Create);
    var serializer = new DataContractSerializer(typeof(Bar));
    serializer.WriteObject(writer, this);
    writer.Close();
}

在 serializer.WriteObject.

上抛出异常

Answer 1

在仔细研究之后，我能够像这样修复它：

[KnownType(typeof(A))]
[DataContractAttribute]
class A
{
    public A(object a, object b, object c)
    {
        d = a;
        e = b;
        f = c;
    }
    [DataMember]
    public object d;
    [DataMember]
    public object e;
    [DataMember]
    public object f;
}

我认为其中一个数组列表实际上持有 As。这个 class 很大，所以我可能错过了它。

使用 DataContractSerializer 忽略嵌套类型

Ignore Nested Types with DataContractSerializer

c#

serialization

datacontractserializer