jsonConvert序列化对象未正确序列化字符串数组

我将使用以下restconnector向REST服务器发布一些JSON:

using Newtonsoft.Json;

public static T httpPost(String myURL, Dictionary<string, string> data) {
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(myURL);
    Console.WriteLine("Sending Request to: " + myURL);

    request.Method = "POST";

    var json = JsonConvert.SerializeObject(data);


    Console.WriteLine("");
    Console.WriteLine("");
    Console.WriteLine("JSON: "+ json);
    Console.WriteLine("");
    Console.WriteLine("");

    ASCIIEncoding encoding = new ASCIIEncoding();
    byte[] byte1 = encoding.GetBytes(json);
    request.ContentType = "application/json";
    request.ContentLength = byte1.Length;

    Stream newStream = request.GetRequestStream();
    newStream.Write(byte1, 0, byte1.Length);
    newStream.Close();
    //...
}

我将从服务器*返回以下错误:

不能将值java.Lang.St[]的实例反序列化

进一步调查后,这是发布的原始JSON:

{
    "tag1":"val1",
    "tag2":"System.String[]", 
    ...
}

如何序列化此对象以便正确发送数组?

例子:

{
    "tag1":"val1",
    "tag2":[],
    ...
}

编辑:

这是我创建要序列化的对象的位置:

    MyObject mo =new MyObject();
    mo.tag1= "val1";
    mo.tag2= new String[]{};

    Dictionary<string, string> input = objectToDictionary(mo);

    mo = RestConnector<MyObject>.httpPost("http://example.com", input);

反对文学的

 public Dictionary<string, string> objectToDictionary(object obj) {
     return obj.GetType().GetProperties()
         .ToDictionary(x => x.Name, x => x.GetValue(obj)?.ToString() ?? "");
 }