using System;

using System.Data;

using System.Linq;

using System.Xml;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using System.Collections.Generic;

using Formatting = Newtonsoft.Json.Formatting;

public class Program

{

    public static void Main()

    {

        DataSet ds = new DataSet();

        DataTable dt = new DataTable();

        dt.TableName = "Table";

        dt.Columns.Add("id");

        dt.Columns.Add("value");

        dt.Rows.Add("1", "hi");

        ds.Tables.Add(dt);

​

        var dsString = JsonConvert.SerializeObject(ds);

        var model = JsonConvert.DeserializeObject<DataTableToModel>(dsString);

        //Console.WriteLine(model.ModelProperty.id);

        //Console.WriteLine(model.ModelProperty.value);

        var json = JsonConvert.SerializeObject(model.ModelProperty);

        Console.WriteLine(json);

    }

}

​

public class DataTableToModel

{

    /// <summary>

    /// Deserialize from DataTable, set ModelProperty from first row

    /// </summary>

    [JsonProperty("Table")]

    private List<Model> ModelSetter { set { this.ModelProperty = value.FirstOrDefault(); } }

​

    /// <summary>

    /// Serialize Model

    /// </summary>

    [JsonProperty("Model")]

    public Model ModelProperty { get; set; }

}

​

/// <summary>

/// Model that has id and value properties expected from DataTable

/// </summary>

public class Model 

{

    [JsonProperty("id")]

    public string id { get; set; }

​

    [JsonProperty("value")]       

    public string value { get; set; }

}