using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;

namespace DataTableExample
{
    class Program
    {
        static void Main(string[] args)
        {
            DataTable table = new DataTable("mytable");

            DataColumn col0 = new DataColumn("id", System.Type.GetType("System.Int32"));
            col0.AutoIncrement = true;
            col0.AutoIncrementSeed = 0;
            col0.AutoIncrementStep = 1;
            DataColumn col1 = new DataColumn("name", System.Type.GetType("System.String"));
            DataColumn col2 = new DataColumn("age", System.Type.GetType("System.Int32"));

            table.Columns.Add(col0);
            table.Columns.Add(col1);
            table.Columns.Add(col2);

            DataRow row1 = table.NewRow();
            row1["name"] = "John";
            row1["age"] = 56;

            DataRow row2 = table.NewRow();
            row2[1] = "Bill";
            row2[2] = 41;

            table.Rows.Add(row1);
            table.Rows.Add(row2);

            Console.WriteLine(table.Rows[1]["name"]);
            Console.ReadLine();
        }
    }
}