NewtonSoft 在运行时添加 JSONIGNORE [英] NewtonSoft add JSONIGNORE at runTime

问题描述

我想使用 NewtonSoft JSON 序列化一个列表，我需要在序列化时忽略其中一个属性，我得到了以下代码

Am looking to Serialize a list using NewtonSoft JSON and i need to ignore one of the property while Serializing and i got the below code

public class Car
{
  // included in JSON
  public string Model { get; set; }
  // ignored
  [JsonIgnore]
  public DateTime LastModified { get; set; }
}

但是我在我的应用程序的很多地方都使用了这个特定的类 Car，我只想在一个地方排除这个选项.

But am using this Specific class Car in many places in my application and i want to Exclude the option only in one place.

我可以在需要的特定位置动态添加 [JsonIgnore] 吗?我该怎么做?

Can i dynamically add [JsonIgnore] in the Specific Place where i need ? How do i do that ?

推荐答案

无需做其他答案中解释的复杂内容.

No need to do the complicated stuff explained in the other answer.

NewtonSoft JSON 有一个内置功能:

NewtonSoft JSON has a built-in feature for that:

public bool ShouldSerializeINSERT_YOUR_PROPERTY_NAME_HERE()
{
    if(someCondition){
        return true;
    }else{
        return false;
    }
}

它被称为条件属性序列化"，文档可以在这里找到.

It is called "conditional property serialization" and the documentation can be found here.

警告:首先，去掉 {get;set;} 属性上方的 [JsonIgnore] 很重要.否则它将覆盖 ShouldSerializeXYZ 行为.

Warning: first of all, it is important to get rid of [JsonIgnore] above your {get;set;} property. Otherwise it will overwrite the ShouldSerializeXYZ behavior.

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