Question

在我的代码中，我需要根据日期对JObject数组进行排序。怎么做？我的数据如下所示，我需要将其按降序排序。

"His": [
        {
        "Date": "6/17/2019 6:00:00 PM",
        "StatusMsg": ""
    },
    {
        "Date": "6/17/2019 11:08:48 AM",
        "StatusMsg": ""
    },
    {
        "Date": "6/17/2019 7:38:00 AM",
        "StatusMsg": ""
    },
    {
        "Date": "6/17/2019 5:00:00 AM",
        "StatusMsg": ""
    },
    {
        "Date": "6/16/2019 6:16:00 PM",
        "StatusMsg": ""
    },
    {
        "Date": "6/15/2019 9:20:00 PM",
        "StatusMsg": ""
    },
    {
        "Date": "6/13/2019 2:00:00 PM",
        "StatusMsg": ""
    },
    {
        "Date": "6/13/2019 1:37:00 PM",
        "StatusMsg": ""
    },
    {
        "Date": "6/13/2019 2:39:00 AM",
        "StatusMsg": ""
    },
    {
        "Date": "6/13/2019 2:11:00 AM",
        "StatusMsg": ""
    },
    {
        "Date": "6/13/2019 2:08:00 AM",
        "StatusMsg": ""
    },
    {
        "Date": "6/12/2019 3:50:00 PM",
        "StatusMsg": ""
    }
    ]

我将结果分配给JObject。这是我的示例输入。任何人都可以帮助我。谢谢。

Answer 1

就像马克在问题注释中所说的-为什么不使用常规类：

public class Rootobject
{
    public His[] His { get; set; }
}

public class His
{
    public string Date { get; set; }
    public string StatusMsg { get; set; }
    public string Msg { get; set; }
    public string StatusDate { get; set; }
}

反序列化并利用LINQ：

var json = "{\r\n\t\"His\": [\r\n        {\r\n            \"Date\": \"3/18/2019 6:30:45 PM\",\r\n            \"StatusMsg\": \"test3\"\r\n        },\r\n        {\r\n            \"Date\": \"3/21/2019 12:13:02 PM\",\r\n            \"Msg\": \"test2\"\r\n        },\r\n        {\r\n            \"StatusDate\": \"3/17/2019 9:26:00 AM\",\r\n            \"Msg\": \"test1\"\r\n        },\r\n    ]\r\n}";

var obj = JsonConvert.DeserializeObject<Rootobject>(json);

var sortedList = obj.His.OrderByDescending(o => o.Date).ToList();

编辑：如果您不想使用课程，则可以执行以下操作：

var json = "{\r\n\t\"His\": [{\r\n\t\t\t\"Date\": \"3/18/2019 6:30:45 PM\",\r\n\t\t\t\"StatusMsg\": \"test3\"\r\n\t\t}, {\r\n\t\t\t\"Date\": \"3/21/2019 12:13:02 PM\",\r\n\t\t\t\"Msg\": \"test2\"\r\n\t\t}, {\r\n\t\t\t\"Date\": \"3/17/2019 9:26:00 AM\",\r\n\t\t\t\"Msg\": \"test1\"\r\n\t\t},\r\n\t]\r\n}\r\n";

JObject jobj = JObject.Parse(json);

JArray array = jobj["His"];

JArray sorted = new JArray(array.OrderByDescending(obj => (DateTime)obj["Date"]));

这假定每个JSON对象将始终具有名为“日期”的属性

如何对JObject数组进行排序？

1 个答案: