如何遍历如下所示的 json 数组.使用 C# 和 Facebook 图形 API

Question

我试图从具有多个ID的Facebook获取事件。我使用一个 ID，但问题是当我尝试使用多个 ID 时。我对我得到的 json 结果有问题。结果确实以"数据"开头，当它以 id 开头时，我找不到有关我的问题的帮助。在此处粘贴我的 Json 结果和 C# 代码。闷闷不乐。

Json result {
    = { {
        "167730163274461": {
            "data": [
            {
                "description": "",
                "end_time": "2017-05-13T23:00:00+0200",
                "name": "Tjuvjakt (SE) LIVE på Babel",
                "place": {
                    "name": "Babel Malmö",
                    "location": {
                        "city": "Malmö",
                        "country": "Sweden",
                        "latitude": 55.596131504101,
                        "longitude": 13.010933324378,
                        "street": "Spångatan 38",
                        "zip": "211 53"
                    },
                    "id": "167730163274461"
                },
                "start_time": "2017-05-13T19:30:00+0200",
                "id": "1188647557883179"
            },
            "157257114335823": {
                "data": [
                {
                    "description": "",
                    "end_time": "2017-05-21T03:00:00+0200",
                    "name": "Morrissey / The Smiths - Unhappy Birthday Party",
                    "place": {
                        "name": "Moriska Paviljongen",
                        "location": {
                            "city": "Malmö",
                            "country": "Sweden",
                            "latitude": 55.593787653743,
                            "longitude": 13.013644627863,
                            "street": "Norra Parkgatan 2",
                            "zip": "21422"
                        },
                        "id": "157257114335823"
                    },
                    "start_time": "2017-05-20T23:00:00+0200",
                    "id": "1208509892563996"
                },
            }
            List<FbEvents> listOfEvents;
            public ActionResult Index()
            {
                WebClient myWebClient = new WebClient();
                string downloadUrl = "https://graph.facebook.com/events?ids=167730163274461,157257114335823&access_token=**=40";
                Uri downloadUri = new Uri(downloadUrl, UriKind.Absolute);
                string downloadedJsonResult = null;
                try
                {
                    downloadedJsonResult = myWebClient.DownloadString(downloadUri);
                }
                catch (Exception ex)
                {
                    ViewBag.ErrorMessage = ex.ToString();
                    return View("Error");
                }
                JObject jsoncreatestring = JObject.Parse(downloadedJsonResult);
                JArray requiredDataArray = (JArray)jsoncreatestring["167730163274461"]["data"];
                string stringToBe = requiredDataArray.ToString();
                listOfEvents = JsonConvert.DeserializeObject<List<FbEvents>>(stringToBe);
                return View(listOfEvents);
            }
        }
    }
    public class FbEvents
    {
        [JsonProperty("owner")]
        public string owner { get; set; }
        [JsonProperty("name")]
        public string name { get; set; }
        [JsonProperty("start_time")]
        public string date { get; set; }
        [JsonProperty("description")]
        public string description { get; set; }
        [JsonProperty("cover")]
        public Dictionary<string, string> cover { get; set; }
        [JsonProperty("id")]
        public string id { get; set; }
    }

Answer 1

我不认为这是最好的方法，但它应该像这样工作：

// [...]
JObject jsoncreatestring = JObject.Parse(downloadedJsonResult);
List<FbEvents> listOfEvents = new List<FbEvents>();
foreach (var item in jsoncreatestring)
{
    JArray requiredDataArray = (JArray)item.Value["data"];
    FbEvents fbEvent = JsonConvert.DeserializeObject<List<FbEvents>>(requiredDataArray.ToString())[0];
    listOfEvents.Add(fbEvent);
}
return View(listOfEvents);
// [...]