using System;

using Newtonsoft.Json;

​

public class Base {

    public enum SampleEnum {

        Bar,

        Baz,

    }

    public SampleEnum EnumRealValue {

        get {

            if(Enum.TryParse<SampleEnum>(EnumValue, out SampleEnum result)) {

                return result;

            } else {

                return default(SampleEnum);

            }

        }

    }

    public string EnumValue {get; set;}

}

​

public static class Program {

    public static void Main() {

        var json = @"{

            'EnumValue': 'Foo',

        }";

        Console.WriteLine(JsonConvert.DeserializeObject<Base>(json).EnumRealValue);

    }

}