Question

我以以下格式从[HttpPost]获取JSON数据。我想反序列化为两个C＃模型。

data {{ 
  "invoiceNumber": "55",
  "invoiceDate": "2018-10-25T13:16:37.843Z",
  "invoiceValue": 55,
  "remarks": null,'
  "items": [
    {
      "gRNNo": "0000000",
      "itemCode": 1,
      "itemDesc": "Lux",
      "qty": "2",      
    },
    {
      "gRNNo": "0000000",
      "itemCode": 2,
      "itemDesc": "Rexona",
      "qty": "1"      
    }
  ]
}}

我可以获取Header数据，但可以获取项数组。

PurHeader purHeader = JsonConvert.DeserializeObject<PurHeader>(data.ToString()); //Working for Header

，但无法获取数组数据。我尝试跟随。

    List<PurDetail> purDetail = JsonConvert.DeserializeObject<List<PurDetail>>(data["items"].ToString());
var purDetail = JsonConvert.DeserializeObject<PurDetail[]>(data["items"].ToString());

我的课程-我在“代码优先”中使用它们。并且data json来自Angular 7 ReactiveForms

public class PurHeader
    {        
        public string GRNNo { get; set; }        
        public string InvoiceNumber { get; set; }
        public DateTime InvoiceDate { get; set; }
        public decimal InvoiceValue { get; set; }
        public string Remarks { get; set; }

        public ICollection<PurDetail> PurDetail { get; set; }
    }

public class PurDetail
    {
        public string GRNNo { get; set; }
        public string ItemCode { get; set; }
        public string ItemDesc { get; set; }
        public decimal Qty { get; set; }

        [ForeignKey("GRNNo")]
        public PurHeader PurHeader { get; set; }
    }

Answer 1

您的JSON格式不正确，我希望这只是您输入的错误。但是，您应该可以使用以下类来解析整个集合：

public class Rootobject
{
  public string invoiceNumber { get; set; }
  public DateTime invoiceDate { get; set; }
  public int invoiceValue { get; set; }
  public object remarks { get; set; }
  public Item[] items { get; set; }
}

public class Item
{
  public string gRNNo { get; set; }
  public int itemCode { get; set; }
  public string itemDesc { get; set; }
  public string qty { get; set; }
}

Rootobject purHeader = JsonConvert.DeserializeObject<Rootobject>(data.ToString());

另请参阅我关于如何轻松地从XML派生类的答案（同样适用于JSON）：Parse This XML to object

Answer 2

假设您的SELECT id, name, MIN(date) AS firstdate, MAX(date) AS maxdate FROM View_MySource GROUP BY id, name;没有两个data，您的代码应该可以工作。但是您可以这样做而不必强制转换为 string ，只是：

{{

将JSON数组对象反序列化为C＃类类型转换

2 个答案: