using Newtonsoft.Json.Linq;

​

class Program

{

    static void Main()

    {

        string jsonData = @"{""careplan"": ""one

twofese

three""}";

​

        string formattedJson = FormatJson(jsonData);

​

        System.Console.WriteLine(formattedJson);

    }

​

    static string FormatJson(string json)

    {

        try

        {

            // Parse the JSON string into a JObject

            var jsonObject = JObject.Parse(json);

            // Replace actual newline characters within the "data" property with "/n"

            var dataProperty = jsonObject["careplan"];

            if (dataProperty != null && dataProperty.Type == JTokenType.String)

            {

                dataProperty.Replace(((string)dataProperty).Replace("\n", "/n"));

            }

            return jsonObject.ToString();

        }

        catch (System.Exception)

        {

            return json;

        }

    }

}

​