System.text.json convert empty string to int-CodePudding

Json.Net converted empty strings in ints/floats to 0 if there was an empty string. I'm using type numeric in my inputs, but empty fields will be an empty string in a form post call. Is there a config to convert empty strings to a Null or 0 like Json.net ?

fiddle below. https://dotnetfiddle.net/CDNicW

CodePudding user response：

Just make value nullable

public class Model
    {
         [JsonNumberHandling(JsonNumberHandling.AllowReadingFromString)]
        public int? Value { get; set; }
    }

the result will be

{ value: null }

CodePudding user response：

add nullable ? in your class model

public class Model
{
     [JsonNumberHandling(JsonNumberHandling.AllowReadingFromString)]
    public int? Value { get; set; }
}

and change for Newtonsoft.Json.JsonConvert.DeserializeObject in your deserializeObject

Model d = Newtonsoft.Json.JsonConvert.DeserializeObject<Model>(myJson);
        Console.WriteLine("Value: "   d?.Value);

finally your result is :

Value: 
json: {"Value":null}