刪除Null值

Question

我JSON陣列，通過採用序列Newtonsoft列表如下

[{"ID":"1","Name":"somename","Class":"12","Section":null},{"ID":null,"Name":"somename","Class":"13","Section":null},{"ID":2,"Name":"somename","Class":null,"Section":"A"}] 

一個字符串，我需要通過刪除NULL值到另一個JSONString像下面

這個JSON轉換

[{"ID":"1","Name":"somename","Class":"12",},{"Name":"somename","Class":"13",},{"ID":2,"Name":"somename","Section":"A"}] 

有沒有一種方法可以使用牛頓軟件，或者我該如何操作。

Answer 1

您可以使用JsonSerializerSettings與NullValueHandling：

var result = JsonConvert.SerializeObject(obj, 
      new JsonSerializerSettings() 
      { 
       NullValueHandling = NullValueHandling.Ignore 
      });