本文介绍了如何使用Object类型的属性ShouldSerialize [MemberName()方法?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我试图阻止类型对象的财产分配给Newtonsoft.Json使用ShouldSerialize方法其属性没有新的值。但我不知道如何实现它,所以请帮我解决这个...



下面是示例代码



 公共类样品1 
{
公共字符串名称{;设置;}
公众诠释标识{获取;集;};
}



这是包含上述类作为它的一个属性

 公共类集装箱
{
公共字符串Cname的{获取;集;}
公共样品1样品{获取;设置;};

公共BOOL ShouldSerializeSample()
{
//我应该写在这里以防止样品财产被序列化时,其属性分配没有新的值。

}
}


解决方案

鉴于你的示例类,我想你,你正在寻找的东西是这样的:

 公共BOOL ShouldSerializeSample()
{
回报率(样本= NULL&放大器;!及(Sample.Id = 0 || Sample.name = NULL)!);
}

下面是一个工作演示:

 类节目
{
静态无效的主要(字串[] args)
{
名单<集装箱>名单=新名单,LT;集装箱>
{
新集装箱
{
Cname的=会序列样品,因为它有一个名字,
样品=新的样品1 {NAME =样品1}
},
新集装箱
{
Cname的=会序列样品,因为它有一个非零ID,
样品=新样品1 {ID = 2}
},
新集装箱
{
Cname的=会序列样品,因为它有一个名字和一个ID,
样品=新的样品1 {NAME =样品3 ID = 3}
},
新集装箱
{
Cname的=不会序列化样品,因为它有默认值,
样品=新的样品1( )
},
新集装箱
{
Cname的=不会序列化样品,因为它是空,
样品= NULL
}
};

JSON字符串= JsonConvert.SerializeObject(列表,Formatting.Indented);
Console.WriteLine(JSON);
}
}

公共类样品1
{
公共字符串名称{;组; }
公众诠释标识{搞定;组; }
}

公共类集装箱
{
公共字符串{的Cname获得;组; }
公共样品1样品{搞定;组; }

公共BOOL ShouldSerializeSample()
{
返回(样本= NULL&放大器;!&安培;!(Sample.Id = 0 || Sample.name = NULL)) ;
}
}

下面是输出:

  [
{
「CNAME:会序列样品,因为它有一个名字,
样本 :{
名:样品1,
标识:0
}
},
{
「CNAME:请问序列化样品,因为它有一个非零ID,
样本:{
名:空,
标识:2
}
} ,
{
「CNAME:会序列样品,因为它有一个名字和一个ID,
样本:{
名:样品3
标识:3
}
},
{
「CNAME:不会序列化样品,因为它有默认值
},
{
「CNAME:不会序列化样品,因为它是空
}
]


I have tried to prevent the property of type object with no new values assigned to its properties using ShouldSerialize Method in Newtonsoft.Json. But I dont know how to implement it, so please help me to solve this...

Here is the sample code

public class Sample1
 {
   public String name{get;set;}
   public int Id{get;set;}; 
 }

And this is my Class containing the above class as one of its properties

public class Container
 {
   public String Cname{get;set;}
   public Sample1 Sample{get;set;}; 

   public bool ShouldSerializeSample()
  {
      //What should I write here to prevent the Sample property from being serialized when its properties are assigned no new values.

  }
 }
解决方案

Given your example classes, I think you you are looking for something like this:

public bool ShouldSerializeSample()
{
    return (Sample != null && (Sample.Id != 0 || Sample.name != null));
}

Here is a working demo:

class Program
{
    static void Main(string[] args)
    {
        List<Container> list = new List<Container>
        {
            new Container
            {
                Cname = "Will serialize Sample because it has a name",
                Sample = new Sample1 { name = "sample 1" }
            },
            new Container
            {
                Cname = "Will serialize Sample because it has a non-zero Id",
                Sample = new Sample1 { Id = 2 }
            },
            new Container
            {
                Cname = "Will serialize Sample because it has a name and an Id",
                Sample = new Sample1 { name = "sample 3", Id = 3 }
            },
            new Container
            {
                Cname = "Will not serialize Sample because it has default values",
                Sample = new Sample1()
            },
            new Container
            {
                Cname = "Will not serialize Sample because it is null",
                Sample = null
            }
        };

        string json = JsonConvert.SerializeObject(list, Formatting.Indented);
        Console.WriteLine(json);
    }
}

public class Sample1
{
    public String name { get; set; }
    public int Id { get; set; }
}

public class Container
{
    public String Cname { get; set; }
    public Sample1 Sample { get; set; }

    public bool ShouldSerializeSample()
    {
        return (Sample != null && (Sample.Id != 0 || Sample.name != null));
    }
}

Here is the output:

[
  {
    "Cname": "Will serialize Sample because it has a name",
    "Sample": {
      "name": "sample 1",
      "Id": 0
    }
  },
  {
    "Cname": "Will serialize Sample because it has a non-zero Id",
    "Sample": {
      "name": null,
      "Id": 2
    }
  },
  {
    "Cname": "Will serialize Sample because it has a name and an Id",
    "Sample": {
      "name": "sample 3",
      "Id": 3
    }
  },
  {
    "Cname": "Will not serialize Sample because it has default values"
  },
  {
    "Cname": "Will not serialize Sample because it is null"
  }
]

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10-27 17:59