C＃从反序列化JSON对象中的数组获取值

Question

我有一个JsonObject ，可以反序列化以使用从api获取的数据。 尽管我可以读取布尔值“ ok”返回的内容，但我似乎无法弄清楚如何从返回的数组中获取数据。 我试图将数组放入foreach循环中以检索所有名称，但是没有成功，因为我没有

{
    "ok": true,
    "establishments": [
        {
            "id": "d2sd2-axsd7gjd2-g3sdasd",
            "name": "Hops n Beers",
            "address": ":HopeStreet",
            "lat": : 54.595112,
            "lng": : -5.935926,
        },
                {
            "id": "z1ty4-axst7jjd2-g3spocd",
            "name": "Good ol Bakery",
            "address": ":Bakerstreet",
            "lat": : 54.54312,
            "lng": : -5.11926,
        },
    ]
}

^这是api返回的内容

我现在的目标是通过foreach循环获取企业名称。 我的代码（删除循环，尝试各种方法后变得凌乱）：

var deserializedLocList = JsonConvert.DeserializeObject<IDictionary<string, object>>(await response.Content.ReadAsStringAsync());
if ((bool)deserializedLocList["ok"])
{
    //I do get a true back, but here I want to create a foreach loop to get all the names
    await DisplayAlert("Succes", "HOORAY!", "OK");
}
else
{
    await DisplayAlert("Fout", (string)deserializedLocList["reason"], "OK");
}

我还创建了一个类，在尝试某些事情时使用了该类，而不是使用Dictionary创建List。

班级：

[JsonObject(MemberSerialization.OptIn)]
public class LocationListResults
{
    [JsonProperty("establishments")]
    public Establishment Establishments { get; set; }
}
public class Establishment
{
    [JsonProperty("id")]
    public string Id { get; set; }
    [JsonProperty("name")]
    public string Name { get; set; }
    [JsonProperty("address")]
    public string  Address{ get; set; }
    [JsonProperty("lat")]
    public string Lat{ get; set; }
    [JsonProperty("lng")]
    public string Lng { get; set; }
}

Answer 1

最佳的最佳解决方案是创建一个Class，代表要接收的对象，然后将内容反序列化为该类型。

您即将上那堂课，您只需说它的场所是场所的列表

[JsonObject(MemberSerialization.OptIn)]
public class LocationListResults
{
    [JsonProperty("ok")]
    public Boolean OK { get; set; }
    [JsonProperty("establishments")]
    public List<Establishment> Establishments { get; set; }
}
public class Establishment
{
    [JsonProperty("id")]
    public string Id { get; set; }
    [JsonProperty("name")]
    public string Name { get; set; }
    [JsonProperty("address")]
    public string  Address{ get; set; }
    [JsonProperty("lat")]
    public string Lat{ get; set; }
    [JsonProperty("lng")]
    public string Lng { get; set; }
}


var deserializedLocList = JsonConvert.DeserializeObject<LocationListResults>(await response.Content.ReadAsStringAsync());
if (/* access here the boolean 'okay' from deserializedLocList or whatever you require */)
{
    //I do get a true back, but here I want to create a foreach loop to get all the names
    await DisplayAlert("Succes", "HOORAY!", "OK");
}
else
{
    await DisplayAlert("Fout", /* access here the value from deserializedLocList or whatever you need */, "OK");
}