Remove Null values in JSON and Update JSON

问题

I have JSON Array as a string by serializing a list using Newtonsoft as below

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

I need to convert this JSON by removing the NULL values to another JSONString like below

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

Is there a way I can use Newtonsoft for this or how do i do this.

回答1:

You can use JsonSerializerSettings with NullValueHandling:

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

来源：https://stackoverflow.com/questions/16455837/remove-null-values-in-json-and-update-json