using System.Text.Json;

using System.Text.Json.Serialization;

​

var tmpObj = new Test

{

    tempType = TempType.Type2

};

​

System.Console.WriteLine(JsonSerializer.Serialize(tmpObj));

​

public class Test

{

    [JsonPropertyName("type")]

    public TempType tempType { get; set; }

    public string MyOtherAttribue { get; set;}

}

​

public class TempType(string value)

{

    public string Value { get; init; } = value;

​

    public static TempType Type1 => new("Type1");

    public static TempType Type2 => new("Type2");

    public override string ToString()

    {

        return this.Value;

    }

}

​

// Desired :

// {"type": "Type2"}

​

// Actual:

// {"type": {"Value": "Type2"}}