NonSerialized不生效

[hahaCrazy]

我想在序列化对象时，让某些成员变量不被序列化，于是使用了NonSerialized属性，但是该成员最终还是被序列化了，请问有什么好的解决方法吗

[devlead]

There's no built-in support for attributes in LitJson.

Behavior is controlled either through a delegate or property modifier access.

Example a custom exporter for a type

Class

public class HelloWorld 
{
	public string ShouldNotBeInJson { get; set; }
	public string Message { get; set; }
}

Register Exporter delegate

LitJson.JsonMapper.RegisterExporter<HelloWorld>((obj, writer) => {
	writer.WriteObjectStart();
	writer.WritePropertyName("Message");
	writer.Write(obj.Message);
	writer.WriteObjectEnd();
});

Usage

var toObject = new HelloWorld {
	Message = "Hello world!",
	ShouldNotBeInJson = "Hello"
};

var toJson = LitJson.JsonMapper.ToJson(toObject);
		
Console.WriteLine("To JSON: {0}", toJson);

Output

To JSON: {"Message":"Hello world!"}

Example using access modifier

Class

public class HelloWorld 
{
	internal string ShouldNotBeInJson { get; set; }
	public string Message { get; set; }
}

Usage

var toObject = new HelloWorld {
	Message = "Hello world!",
	ShouldNotBeInJson = "Hello"
};

var toJson = LitJson.JsonMapper.ToJson(toObject);
		
Console.WriteLine("To JSON: {0}", toJson);

Output

To JSON: {"Message":"Hello world!"}

[MyPure]

你可以改造源码，添加[JsonIgnore]标签，来让特定的字段不被序列化：
在JsonMapper.cs的WriteValue方法中，有这么一段，加上这几句即可

// Okay, so it looks like the input should be exported as an
// object
AddTypeProperties (obj_type);
IList<PropertyMetadata> props = type_properties[obj_type];
writer.WriteObjectStart ();

foreach (PropertyMetadata p_data in props)
{
	var skipAttributesList = p_data.Info.GetCustomAttributes(typeof(JsonIgnore), true);
	var skipAttributes = skipAttributesList as ICollection<Attribute>;
	if (skipAttributes.Count > 0)
	{
		continue;
	}
...
}

来源：http://wjhsh.net/msxh-p-12541159.html