将json中的字符串转换为字符串数组

Question

我正在尝试转换json字符串＆＃34; 1,2＆＃34;到["1","2"]，但我得到了这个＆＃34; [1,2]＆＃34;：

Dim json = {"types": "1,2"}
oAction.ExtraData = Newtonsoft.Json.JsonConvert.SerializeObject(json)

Dim extraData As JObject
extraData = JObject.Parse(oAction.ExtraData)
extraData("types") = "[" + extraData("types").ToString + "]"

oAction.ExtraData  = Newtonsoft.Json.JsonConvert.SerializeObject(types)