序列化为空

Question

我尝试序列化一个自定义对象，但结果是空的。

我想要的结果是：

{
"accessRules": [
    {
        "method": "GET",
        "path": "/*"
    }
],
"redirection":"https://www.mywebsite.com/"
}'

以下是我的课程：

[Serializable]
    public class AccessRule
    {
        [SerializeAs(Name = "method")]
        string Method { get; set; }

        [SerializeAs(Name = "path")]
        string Path { get; set; }

        public AccessRule(string method, string path)
        {
            this.Method = method;
            this.Path = path;
        }
    }

    [Serializable]
    public class RequestBody
    {
        [SerializeAs(Name = "accessRules")]
        AccessRule[] AccessRules
        {
            get { return arList.ToArray(); }
        }

        private List<AccessRule> arList;

        [SerializeAs(Name = "redirection")]
        string Redirection { get; set; }

        public RequestBody(string method, string path, string redirection)
        {
            this.arList = new List<AccessRule>();
            this.arList.Add(new AccessRule(method, path));
            this.Redirection = redirection;
        }
    }

var RequestBody = new RequestBody("GET", "/*", "https://www.mywebsite.com");

它导致一个空的json字符串。

如果我这样做：

var RequestBody = new { accessRules = new[] { new { method = "GET", path = "/*" } }, redirection = "https://www.mywebsite.com" };

有效。

我使用RestSharp 104.4.0.0，也尝试使用Newtonsoft.Json v6.0.0.0

我在这里缺少什么？

感谢。