ADO Net C# Tutorial

using System;
using System.Data;
using System.Data.SqlClient;
    class Program
    {
        static void Main(string[] args)
        {
            string sqlConnectString = "Data Source=(local);Integrated security=SSPI;Initial Catalog=AdventureWorks;";
            string sqlSelect = "SELECT ContactID, FirstName, LastName FROM Person.Contact";
            SqlDataAdapter da = new SqlDataAdapter(sqlSelect, sqlConnectString);
            DataTable dt = new DataTable( );
            da.Fill(dt);
            int j = 0;
            foreach (DataRow row in dt.Rows)
            {
                j++;
                Console.WriteLine("Row = {0}\tContactID = {1}\tFirstName = {2}\tLastName = {3}", j, row[0], row["FirstName"],row["LastName", DataRowVersion.Default]);
            }
        }
    }