using System;

using System.Data;

using System.Linq;

using System.Data.DataSetExtensions;

public class Program

{

    public static void Main()

    {

        DataTable dtSnapshot = new DataTable();

dtSnapshot.Columns.Add("Company", typeof(int));

dtSnapshot.Columns.Add("PackSlip");

dtSnapshot.Columns.Add("PackLine");

dtSnapshot.Columns.Add("VendorNum");

dtSnapshot.Columns.Add("PurPoint");

dtSnapshot.Columns.Add("Selected", typeof(bool));

dtSnapshot.Columns.Add("Received");

dtSnapshot.Columns.Add("SysRowID");

  DataRow dr = dtSnapshot.NewRow();

  dr["Company"] = 123;

  dr["PackSlip"] = "abcg";

  dr["Selected"] = false;

  dtSnapshot.Rows.Add(dr);

  DataRow dr2 = dtSnapshot.NewRow();

  dr2["Company"] = 123;

  dr2["PackSlip"] = "abce";

  dr2["Selected"] = true;

  dtSnapshot.Rows.Add(dr2);

        DataColumn col = dtSnapshot.Columns["Company"];

        Console.WriteLine(col.DataType);

    /*foreach (var item in dtSnapshot.AsEnumerable())

        {

            Console.WriteLine(item.Field<string>("PackSlip"));      

        }*/

​

var serializedString = Newtonsoft.Json.JsonConvert.SerializeObject(dtSnapshot);

dynamic dynJson = Newtonsoft.Json.JsonConvert.DeserializeObject(serializedString);

DataTable dtJson = Newtonsoft.Json.JsonConvert.DeserializeObject<DataTable>(serializedString);

        //var z = (from x in dtJson.AsEnumerable() select x);

        var rows = dtJson.AsEnumerable().Where(x => x.Field<bool>("Selected") == true).FirstOrDefault();

        bool z = rows.Field<bool>("Selected");

        Console.WriteLine(z);

        //var rows2 = dtJson.AsEnumerable();//.Where(x => x.Field<bool?>("Selected") == true);

        var rows2 = dtJson.AsEnumerable().Where(x => x.Field<bool?>("Selected") == true).ToList();

        bool y = rows2[0].Field<bool>("Selected");

        Console.WriteLine(y);

        foreach (var item in rows2)

        {

            Console.WriteLine(item["Company"].GetType()); // Int64

            Console.WriteLine(Convert.ToInt32(item["Company"]));    

        }

    }

}