Question

我无法打印p.paper，p.pen，p.eraser，p.box。原因：

1.也许类RootObject是错误的定义，如何修复？

2. JSON输入可以更改1 row, 3 row或更多2163行，我该如何处理所有情况？我想从不仅1行而且还有2163行

获取数据

任何人都可以知道并教我吗？非常感谢

class Program
{
    static void Main(string[] args)
    {

    //JsonResult is JSON string , input could be
    //{"total":1,"row":{"1":{"paper":"2330","pen":"","eraser":"","box":""}}}
    //or
    //{"total":3,"row":{"1":
    //{"paper":"0050","pen":"","eraser":"","box":""},"2":
    //{"paper":"0051","pen":"","eraser":"","box":""},"3":
    //{"paper":"0052","pen":"","eraser":"","box":""}}}
    //or
    //{"total":2163,"row":{"1":
    //{"paper":"0050","pen":"","eraser":"","box":""},"2":
    //{"paper":"0051","pen":"","eraser":"","box":""},"3":
    //{"paper":"0052","pen":"","eraser":"","box":""},.................}}

     RootObject root = JsonConvert.DeserializeObject<RootObject>(JsonResult);

      foreach (productType p in root.Contents)
      {
           Console.WriteLine(string.Format("{0}, {1}, {2}, {3})", p.paper, 
           p.pen, p.eraser, p.box));
      }

}

public class productType
{
     public string paper  { get; set; }
     public string pen { get; set; }
     public string eraser { get; set; }
     public string box { get; set; }
 }    

 public class RootObject
 {
      [JsonProperty("row")]
      public productType[] Contents { get; set; }

      public int total { get; set; }    
  }

Answer 1

C＃类不能以数字开头。您可以依靠[JsonProperty(PropertyName = "1")]将1映射到productType，但它只适用于1。这不是解决方案。

[JsonProperty(PropertyName = "1")]
public class productType
{
    public string paper { get; set; }
    public string pen { get; set; }
    public string eraser { get; set; }
    public string box { get; set; }
}

public class Row
{
    public productType productType { get; set; }
}

public class RootObject
{
    public int total { get; set; }
    public Row row { get; set; }
}

那又怎样？

您的JSON是您的问题。 row应该是rows并且是一个项目数组。类似的东西：

{"total":3,"rows":[
{"paper":"0050","pen":"","eraser":"","box":""},
{"paper":"0051","pen":"","eraser":"","box":""},
{"paper":"0052","pen":"","eraser":"","box":""}]}

Answer 2

您的JSON结构的方式，行实际上表示为具有编号属性而不是数组的对象。您可以使用RootObject代替Dictionary<string, productType>在productType[]课程中处理此问题。字典的键是行号。这适用于任意数量的行。

public class RootObject
{
    [JsonProperty("row")]
    public Dictionary<string, productType> Contents { get; set; }

    public int total { get; set; }    
}

这是一个包含3行的演示：https://dotnetfiddle.net/dwX4RI

JsonConvert.DeserializeObject，所有对象

2 个答案: